kernel32 topic

Windows Kernel APIs

The Win32 base APIs, such as memory management, input/output (I/O) operations, process and thread creation, and synchronization functions.

Functions

ActivateActCtx(int hActCtx, Pointer<IntPtr> lpCookie) → int

The ActivateActCtx function activates the specified activation context. It does this by pushing the specified activation context to the top of the activation stack. The specified activation context is thus associated with the current thread and any appropriate side-by-side API functions.

AddDllDirectory(Pointer<Utf16> NewDirectory) → Pointer<NativeType>

Adds a directory to the process DLL search path.

AddRefActCtx(int hActCtx) → void

The AddRefActCtx function increments the reference count of the specified activation context.

AllocConsole() → int

Allocates a new console for the calling process.

AreFileApisANSI() → int

Determines whether the file I/O functions are using the ANSI or OEM character set code page. This function is useful for 8-bit console input and output operations.

AssignProcessToJobObject(int hJob, int hProcess) → int

Assigns a process to an existing job object.

AttachConsole(int dwProcessId) → int

Attaches the calling process to the console of the specified process.

Beep(int dwFreq, int dwDuration) → int

Generates simple tones on the speaker. The function is synchronous; it performs an alertable wait and does not return control to its caller until the sound finishes.

BeginUpdateResource(Pointer<Utf16> pFileName, int bDeleteExistingResources) → int

Retrieves a handle that can be used by the UpdateResource function to add, delete, or replace resources in a binary module.

BuildCommDCB(Pointer<Utf16> lpDef, Pointer<DCB> lpDCB) → int

Fills a specified DCB structure with values specified in a device-control string. The device-control string uses the syntax of the mode command.

BuildCommDCBAndTimeouts(Pointer<Utf16> lpDef, Pointer<DCB> lpDCB, Pointer<COMMTIMEOUTS> lpCommTimeouts) → int

Translates a device-definition string into appropriate device-control block codes and places them into a device control block. The function can also set up time-out values, including the possibility of no time-outs, for a device; the function's behavior in this regard depends on the contents of the device-definition string.

CallNamedPipe(Pointer<Utf16> lpNamedPipeName, Pointer<NativeType> lpInBuffer, int nInBufferSize, Pointer<NativeType> lpOutBuffer, int nOutBufferSize, Pointer<Uint32> lpBytesRead, int nTimeOut) → int

Connects to a message-type pipe (and waits if an instance of the pipe is not available), writes to and reads from the pipe, and then closes the pipe.

CancelIo(int hFile) → int

Cancels all pending input and output (I/O) operations that are issued by the calling thread for the specified file. The function does not cancel I/O operations that other threads issue for a file handle.

CancelIoEx(int hFile, Pointer<OVERLAPPED> lpOverlapped) → int

Marks any outstanding I/O operations for the specified file handle. The function only cancels I/O operations in the current process, regardless of which thread created the I/O operation.

CancelSynchronousIo(int hThread) → int

Marks pending synchronous I/O operations that are issued by the specified thread as canceled.

CheckRemoteDebuggerPresent(int hProcess, Pointer<Int32> pbDebuggerPresent) → int

Determines whether the specified process is being debugged.

ClearCommBreak(int hFile) → int

Restores character transmission for a specified communications device and places the transmission line in a nonbreak state.

ClearCommError(int hFile, Pointer<Uint32> lpErrors, Pointer<COMSTAT> lpStat) → int

Retrieves information about a communications error and reports the current status of a communications device. The function is called when a communications error occurs, and it clears the device's error flag to enable additional input and output (I/O) operations.

CloseHandle(int hObject) → int

Closes an open object handle.

ClosePseudoConsole(int hPC) → void

Closes a pseudoconsole from the given handle.

CommConfigDialog(Pointer<Utf16> lpszName, int hWnd, Pointer<COMMCONFIG> lpCC) → int

Displays a driver-supplied configuration dialog box.

CompareObjectHandles(int hFirstObjectHandle, int hSecondObjectHandle) → int

Compares two object handles to determine if they refer to the same underlying kernel object.

ConnectNamedPipe(int hNamedPipe, Pointer<OVERLAPPED> lpOverlapped) → int

Enables a named pipe server process to wait for a client process to connect to an instance of a named pipe. A client process connects by calling either the CreateFile or CallNamedPipe function.

ContinueDebugEvent(int dwProcessId, int dwThreadId, int dwContinueStatus) → int

Enables a debugger to continue a thread that previously reported a debugging event.

CreateActCtx(Pointer<ACTCTX> pActCtx) → int

The CreateActCtx function creates an activation context.

CreateConsoleScreenBuffer(int dwDesiredAccess, int dwShareMode, Pointer<SECURITY_ATTRIBUTES> lpSecurityAttributes, int dwFlags, Pointer<NativeType> lpScreenBufferData) → int

Creates a console screen buffer.

CreateDirectory(Pointer<Utf16> lpPathName, Pointer<SECURITY_ATTRIBUTES> lpSecurityAttributes) → int

Creates a new directory. If the underlying file system supports security on files and directories, the function applies a specified security descriptor to the new directory.

CreateEvent(Pointer<SECURITY_ATTRIBUTES> lpEventAttributes, int bManualReset, int bInitialState, Pointer<Utf16> lpName) → int

Creates or opens a named or unnamed event object.

CreateEventEx(Pointer<SECURITY_ATTRIBUTES> lpEventAttributes, Pointer<Utf16> lpName, int dwFlags, int dwDesiredAccess) → int

Creates or opens a named or unnamed event object and returns a handle to the object.

CreateFile(Pointer<Utf16> lpFileName, int dwDesiredAccess, int dwShareMode, Pointer<SECURITY_ATTRIBUTES> lpSecurityAttributes, int dwCreationDisposition, int dwFlagsAndAttributes, int hTemplateFile) → int

Creates or opens a file or I/O device. The most commonly used I/O devices are as follows: file, file stream, directory, physical disk, volume, console buffer, tape drive, communications resource, mailslot, and pipe. The function returns a handle that can be used to access the file or device for various types of I/O depending on the file or device and the flags and attributes specified.

CreateFile2(Pointer<Utf16> lpFileName, int dwDesiredAccess, int dwShareMode, int dwCreationDisposition, Pointer<CREATEFILE2_EXTENDED_PARAMETERS> pCreateExParams) → int

Creates or opens a file or I/O device. The most commonly used I/O devices are as follows: file, file stream, directory, physical disk, volume, console buffer, tape drive, communications resource, mailslot, and pipe. The function returns a handle that can be used to access the file or device for various types of I/O depending on the file or device and the flags and attributes specified.

CreateIoCompletionPort(int FileHandle, int ExistingCompletionPort, int CompletionKey, int NumberOfConcurrentThreads) → int

Creates an input/output (I/O) completion port and associates it with a specified file handle, or creates an I/O completion port that is not yet associated with a file handle, allowing association at a later time.

CreateJobObject(Pointer<SECURITY_ATTRIBUTES> lpJobAttributes, Pointer<Utf16> lpName) → int

Creates or opens a job object.

CreateNamedPipe(Pointer<Utf16> lpName, int dwOpenMode, int dwPipeMode, int nMaxInstances, int nOutBufferSize, int nInBufferSize, int nDefaultTimeOut, Pointer<SECURITY_ATTRIBUTES> lpSecurityAttributes) → int

Creates an instance of a named pipe and returns a handle for subsequent pipe operations. A named pipe server process uses this function either to create the first instance of a specific named pipe and establish its basic attributes or to create a new instance of an existing named pipe.

CreatePipe(Pointer<IntPtr> hReadPipe, Pointer<IntPtr> hWritePipe, Pointer<SECURITY_ATTRIBUTES> lpPipeAttributes, int nSize) → int

Creates an anonymous pipe, and returns handles to the read and write ends of the pipe.

CreateProcess(Pointer<Utf16> lpApplicationName, Pointer<Utf16> lpCommandLine, Pointer<SECURITY_ATTRIBUTES> lpProcessAttributes, Pointer<SECURITY_ATTRIBUTES> lpThreadAttributes, int bInheritHandles, int dwCreationFlags, Pointer<NativeType> lpEnvironment, Pointer<Utf16> lpCurrentDirectory, Pointer<STARTUPINFO> lpStartupInfo, Pointer<PROCESS_INFORMATION> lpProcessInformation) → int

Creates a new process and its primary thread. The new process runs in the security context of the calling process.

CreatePseudoConsole(COORD size, int hInput, int hOutput, int dwFlags, Pointer<IntPtr> phPC) → int

Creates a new pseudoconsole object for the calling process.

CreateRemoteThread(int hProcess, Pointer<SECURITY_ATTRIBUTES> lpThreadAttributes, int dwStackSize, Pointer<NativeFunction<LPTHREAD_START_ROUTINE>> lpStartAddress, Pointer<NativeType> lpParameter, int dwCreationFlags, Pointer<Uint32> lpThreadId) → int

Creates a thread that runs in the virtual address space of another process. Use the CreateRemoteThreadEx function to create a thread that runs in the virtual address space of another process and optionally specify extended attributes.

CreateRemoteThreadEx(int hProcess, Pointer<SECURITY_ATTRIBUTES> lpThreadAttributes, int dwStackSize, Pointer<NativeFunction<LPTHREAD_START_ROUTINE>> lpStartAddress, Pointer<NativeType> lpParameter, int dwCreationFlags, Pointer<NativeType> lpAttributeList, Pointer<Uint32> lpThreadId) → int

Creates a thread that runs in the virtual address space of another process and optionally specifies extended attributes such as processor group affinity.

CreateThread(Pointer<SECURITY_ATTRIBUTES> lpThreadAttributes, int dwStackSize, Pointer<NativeFunction<LPTHREAD_START_ROUTINE>> lpStartAddress, Pointer<NativeType> lpParameter, int dwCreationFlags, Pointer<Uint32> lpThreadId) → int

Creates a thread to execute within the virtual address space of the calling process.

DeactivateActCtx(int dwFlags, int ulCookie) → int

The DeactivateActCtx function deactivates the activation context corresponding to the specified cookie.

DebugBreak() → void

Causes a breakpoint exception to occur in the current process. This allows the calling thread to signal the debugger to handle the exception.

DebugBreakProcess(int Process) → int

Causes a breakpoint exception to occur in the specified process. This allows the calling thread to signal the debugger to handle the exception.

DebugSetProcessKillOnExit(int KillOnExit) → int

Sets the action to be performed when the calling thread exits.

DefineDosDevice(int dwFlags, Pointer<Utf16> lpDeviceName, Pointer<Utf16> lpTargetPath) → int

Defines, redefines, or deletes MS-DOS device names.

DeleteFile(Pointer<Utf16> lpFileName) → int

Deletes an existing file.

DeleteVolumeMountPoint(Pointer<Utf16> lpszVolumeMountPoint) → int

Deletes a drive letter or mounted folder.

DeviceIoControl(int hDevice, int dwIoControlCode, Pointer<NativeType> lpInBuffer, int nInBufferSize, Pointer<NativeType> lpOutBuffer, int nOutBufferSize, Pointer<Uint32> lpBytesReturned, Pointer<OVERLAPPED> lpOverlapped) → int

Sends a control code directly to a specified device driver, causing the corresponding device to perform the corresponding operation.

DisableThreadLibraryCalls(int hLibModule) → int

Disables the DLL_THREAD_ATTACH and DLL_THREAD_DETACH notifications for the specified dynamic-link library (DLL). This can reduce the size of the working set for some applications.

DisconnectNamedPipe(int hNamedPipe) → int

Disconnects the server end of a named pipe instance from a client process.

DnsHostnameToComputerName(Pointer<Utf16> Hostname, Pointer<Utf16> ComputerName, Pointer<Uint32> nSize) → int

Converts a DNS-style host name to a NetBIOS-style computer name.

DosDateTimeToFileTime(int wFatDate, int wFatTime, Pointer<FILETIME> lpFileTime) → int

Converts MS-DOS date and time values to a file time.

DuplicateHandle(int hSourceProcessHandle, int hSourceHandle, int hTargetProcessHandle, Pointer<IntPtr> lpTargetHandle, int dwDesiredAccess, int bInheritHandle, int dwOptions) → int

Duplicates an object handle.

EmptyWorkingSet(int hProcess) → int

Removes as many pages as possible from the working set of the specified process.

EndUpdateResource(int hUpdate, int fDiscard) → int

Commits or discards changes made prior to a call to UpdateResource.

EnumDeviceDrivers(Pointer<Pointer<NativeType>> lpImageBase, int cb, Pointer<Uint32> lpcbNeeded) → int

Retrieves the load address for each device driver in the system.

EnumPageFiles(Pointer<NativeFunction<PENUM_PAGE_FILE_CALLBACK>> pCallBackRoutine, Pointer<NativeType> pContext) → int

Calls the callback routine for each installed pagefile in the system.

EnumProcesses(Pointer<Uint32> lpidProcess, int cb, Pointer<Uint32> lpcbNeeded) → int

Retrieves the process identifier for each process object in the system.

EnumProcessModules(int hProcess, Pointer<IntPtr> lphModule, int cb, Pointer<Uint32> lpcbNeeded) → int

Retrieves a handle for each module in the specified process.

EnumProcessModulesEx(int hProcess, Pointer<IntPtr> lphModule, int cb, Pointer<Uint32> lpcbNeeded, int dwFilterFlag) → int

Retrieves a handle for each module in the specified process that meets the specified filter criteria.

EnumResourceNames(int hModule, Pointer<Utf16> lpType, Pointer<NativeFunction<ENUMRESNAMEPROC>> lpEnumFunc, int lParam) → int

Enumerates resources of a specified type within a binary module. For Windows Vista and later, this is typically a language-neutral Portable Executable (LN file), and the enumeration will also include resources from the corresponding language-specific resource files (.mui files) that contain localizable language resources. It is also possible for hModule to specify an .mui file, in which case only that file is searched for resources.

EnumResourceTypes(int hModule, Pointer<NativeFunction<ENUMRESTYPEPROC>> lpEnumFunc, int lParam) → int

Enumerates resource types within a binary module. Starting with Windows Vista, this is typically a language-neutral Portable Executable (LN file), and the enumeration also includes resources from one of the corresponding language-specific resource files (.mui files)—if one exists—that contain localizable language resources. It is also possible to use hModule to specify a .mui file, in which case only that file is searched for resource types.

EnumSystemFirmwareTables(int FirmwareTableProviderSignature, Pointer<Uint8> pFirmwareTableEnumBuffer, int BufferSize) → int

Enumerates all system firmware tables of the specified type.

EscapeCommFunction(int hFile, int dwFunc) → int

Directs the specified communications device to perform an extended function.

ExitProcess(int uExitCode) → void

Ends the calling process and all its threads.

ExitThread(int dwExitCode) → void

Ends the calling thread.

FileTimeToDosDateTime(Pointer<FILETIME> lpFileTime, Pointer<Uint16> lpFatDate, Pointer<Uint16> lpFatTime) → int

Converts a file time to MS-DOS date and time values.

FileTimeToSystemTime(Pointer<FILETIME> lpFileTime, Pointer<SYSTEMTIME> lpSystemTime) → int

Converts a file time to system time format. System time is based on Coordinated Universal Time (UTC).

FillConsoleOutputAttribute(int hConsoleOutput, int wAttribute, int nLength, COORD dwWriteCoord, Pointer<Uint32> lpNumberOfAttrsWritten) → int

Sets the character attributes for a specified number of character cells, beginning at the specified coordinates in a screen buffer.

FillConsoleOutputCharacter(int hConsoleOutput, int cCharacter, int nLength, COORD dwWriteCoord, Pointer<Uint32> lpNumberOfCharsWritten) → int

Writes a character to the console screen buffer a specified number of times, beginning at the specified coordinates.

FillMemory(Pointer<NativeType> destination, int length, int fill) → void

Fills a block of memory with a specified value.

FindClose(int hFindFile) → int

Closes a file search handle opened by the FindFirstFile, FindFirstFileEx, FindFirstFileNameW, FindFirstFileNameTransactedW, FindFirstFileTransacted, FindFirstStreamTransactedW, or FindFirstStreamW functions.

FindCloseChangeNotification(int hChangeHandle) → int

Stops change notification handle monitoring.

FindFirstChangeNotification(Pointer<Utf16> lpPathName, int bWatchSubtree, int dwNotifyFilter) → int

Creates a change notification handle and sets up initial change notification filter conditions. A wait on a notification handle succeeds when a change matching the filter conditions occurs in the specified directory or subtree. The function does not report changes to the specified directory itself.

FindFirstFile(Pointer<Utf16> lpFileName, Pointer<WIN32_FIND_DATA> lpFindFileData) → int

Searches a directory for a file or subdirectory with a name that matches a specific name (or partial name if wildcards are used).

FindFirstFileEx(Pointer<Utf16> lpFileName, int fInfoLevelId, Pointer<NativeType> lpFindFileData, int fSearchOp, Pointer<NativeType> lpSearchFilter, int dwAdditionalFlags) → int

Searches a directory for a file or subdirectory with a name and attributes that match those specified.

FindFirstFileName(Pointer<Utf16> lpFileName, int dwFlags, Pointer<Uint32> StringLength, Pointer<Utf16> LinkName) → int

Creates an enumeration of all the hard links to the specified file. The FindFirstFileNameW function returns a handle to the enumeration that can be used on subsequent calls to the FindNextFileNameW function.

FindFirstStream(Pointer<Utf16> lpFileName, int InfoLevel, Pointer<NativeType> lpFindStreamData, int dwFlags) → int

Enumerates the first stream with a ::$DATA stream type in the specified file or directory.

FindFirstVolume(Pointer<Utf16> lpszVolumeName, int cchBufferLength) → int

Retrieves the name of a volume on a computer. FindFirstVolume is used to begin scanning the volumes of a computer.

FindNextChangeNotification(int hChangeHandle) → int

Requests that the operating system signal a change notification handle the next time it detects an appropriate change.

FindNextFile(int hFindFile, Pointer<WIN32_FIND_DATA> lpFindFileData) → int

Continues a file search from a previous call to the FindFirstFile, FindFirstFileEx, or FindFirstFileTransacted functions.

FindNextFileName(int hFindStream, Pointer<Uint32> StringLength, Pointer<Utf16> LinkName) → int

Continues enumerating the hard links to a file using the handle returned by a successful call to the FindFirstFileNameW function.

FindNextStream(int hFindStream, Pointer<NativeType> lpFindStreamData) → int

Continues a stream search started by a previous call to the FindFirstStreamW function.

FindNextVolume(int hFindVolume, Pointer<Utf16> lpszVolumeName, int cchBufferLength) → int

Continues a volume search started by a call to the FindFirstVolume function. FindNextVolume finds one volume per call.

FindPackagesByPackageFamily(Pointer<Utf16> packageFamilyName, int packageFilters, Pointer<Uint32> count, Pointer<Pointer<Utf16>> packageFullNames, Pointer<Uint32> bufferLength, Pointer<Utf16> buffer, Pointer<Uint32> packageProperties) → int

Finds the packages with the specified family name for the current user.

FindResource(int hModule, Pointer<Utf16> lpName, Pointer<Utf16> lpType) → int

Determines the location of a resource with the specified type and name in the specified module.

FindResourceEx(int hModule, Pointer<Utf16> lpType, Pointer<Utf16> lpName, int wLanguage) → int

Determines the location of the resource with the specified type, name, and language in the specified module.

FindStringOrdinal(int dwFindStringOrdinalFlags, Pointer<Utf16> lpStringSource, int cchSource, Pointer<Utf16> lpStringValue, int cchValue, int bIgnoreCase) → int

Locates a Unicode string (wide characters) in another Unicode string for a non-linguistic comparison.

FindVolumeClose(int hFindVolume) → int

Closes the specified volume search handle. The FindFirstVolume and FindNextVolume functions use this search handle to locate volumes.

FlushConsoleInputBuffer(int hConsoleInput) → int

Flushes the console input buffer. All input records currently in the input buffer are discarded.

FormatMessage(int dwFlags, Pointer<NativeType> lpSource, int dwMessageId, int dwLanguageId, Pointer<Utf16> lpBuffer, int nSize, Pointer<Pointer<Int8>> Arguments) → int

Formats a message string. The function requires a message definition as input. The message definition can come from a buffer passed into the function. It can come from a message table resource in an already-loaded module. Or the caller can ask the function to search the system's message table resource(s) for the message definition. The function finds the message definition in a message table resource based on a message identifier and a language identifier. The function copies the formatted message text to an output buffer, processing any embedded insert sequences if requested.

FreeConsole() → int

Detaches the calling process from its console.

FreeLibrary(int hLibModule) → int

Frees the loaded dynamic-link library (DLL) module and, if necessary, decrements its reference count. When the reference count reaches zero, the module is unloaded from the address space of the calling process and the handle is no longer valid.

FreeLibraryAndExitThread(int hLibModule, int dwExitCode) → void

Decrements the reference count of a loaded dynamic-link library (DLL) by one, then calls ExitThread to terminate the calling thread. The function does not return.

FreeMemoryJobObject(Pointer<NativeType> Buffer) → void

Frees memory that a function related to job objects allocated.

GetActiveProcessorCount(int GroupNumber) → int

Returns the number of active processors in a processor group or in the system.

GetActiveProcessorGroupCount() → int

Returns the number of active processor groups in the system.

GetBinaryType(Pointer<Utf16> lpApplicationName, Pointer<Uint32> lpBinaryType) → int

Determines whether a file is an executable (.exe) file, and if so, which subsystem runs the executable file.

GetCommandLine() → Pointer<Utf16>

Parses a Unicode command line string and returns an array of pointers to the command line arguments, along with a count of such arguments, in a way that is similar to the standard C run-time argv and argc values.

GetCommConfig(int hCommDev, Pointer<COMMCONFIG> lpCC, Pointer<Uint32> lpdwSize) → int

Retrieves the current configuration of a communications device.

GetCommMask(int hFile, Pointer<Uint32> lpEvtMask) → int

Retrieves the value of the event mask for a specified communications device.

GetCommModemStatus(int hFile, Pointer<Uint32> lpModemStat) → int

Retrieves the modem control-register values.

GetCommPorts(Pointer<Uint32> lpPortNumbers, int uPortNumbersCount, Pointer<Uint32> puPortNumbersFound) → int

Gets an array that contains the well-formed COM ports.

GetCommProperties(int hFile, Pointer<COMMPROP> lpCommProp) → int

Retrieves information about the communications properties for a specified communications device.

GetCommState(int hFile, Pointer<DCB> lpDCB) → int

Retrieves the current control settings for a specified communications device.

GetCommTimeouts(int hFile, Pointer<COMMTIMEOUTS> lpCommTimeouts) → int

Retrieves the time-out parameters for all read and write operations on a specified communications device.

GetCompressedFileSize(Pointer<Utf16> lpFileName, Pointer<Uint32> lpFileSizeHigh) → int

Retrieves the actual number of bytes of disk storage used to store a specified file. If the file is located on a volume that supports compression and the file is compressed, the value obtained is the compressed size of the specified file. If the file is located on a volume that supports sparse files and the file is a sparse file, the value obtained is the sparse size of the specified file.

GetComputerName(Pointer<Utf16> lpBuffer, Pointer<Uint32> nSize) → int

Retrieves the NetBIOS name of the local computer. This name is established at system startup, when the system reads it from the registry.

GetComputerNameEx(int NameType, Pointer<Utf16> lpBuffer, Pointer<Uint32> nSize) → int

Retrieves a NetBIOS or DNS name associated with the local computer. The names are established at system startup, when the system reads them from the registry.

GetConsoleCP() → int

Retrieves the input code page used by the console associated with the calling process. A console uses its input code page to translate keyboard input into the corresponding character value.

GetConsoleCursorInfo(int hConsoleOutput, Pointer<CONSOLE_CURSOR_INFO> lpConsoleCursorInfo) → int

Retrieves information about the size and visibility of the cursor for the specified console screen buffer.

GetConsoleMode(int hConsoleHandle, Pointer<Uint32> lpMode) → int

Retrieves the current input mode of a console's input buffer or the current output mode of a console screen buffer.

GetConsoleOutputCP() → int

Retrieves the output code page used by the console associated with the calling process. A console uses its output code page to translate the character values written by the various output functions into the images displayed in the console window.

GetConsoleScreenBufferInfo(int hConsoleOutput, Pointer<CONSOLE_SCREEN_BUFFER_INFO> lpConsoleScreenBufferInfo) → int

Retrieves information about the specified console screen buffer.

GetConsoleSelectionInfo(Pointer<CONSOLE_SELECTION_INFO> lpConsoleSelectionInfo) → int

Retrieves information about the current console selection.

GetConsoleTitle(Pointer<Utf16> lpConsoleTitle, int nSize) → int

Retrieves the title for the current console window.

GetConsoleWindow() → int

Retrieves the window handle used by the console associated with the calling process.

GetCurrentActCtx(Pointer<IntPtr> lphActCtx) → int

The GetCurrentActCtx function returns the handle to the active activation context of the calling thread.

GetCurrentProcess() → int

Retrieves a pseudo handle for the current process.

GetCurrentProcessId() → int

Retrieves the process identifier of the calling process.

GetCurrentProcessorNumber() → int

Retrieves the number of the processor the current thread was running on during the call to this function.

GetCurrentThread() → int

Retrieves a pseudo handle for the calling thread.

GetCurrentThreadId() → int

Retrieves the thread identifier of the calling thread.

GetDefaultCommConfig(Pointer<Utf16> lpszName, Pointer<COMMCONFIG> lpCC, Pointer<Uint32> lpdwSize) → int

Retrieves the default configuration for the specified communications device.

GetDeviceDriverBaseName(Pointer<NativeType> ImageBase, Pointer<Utf16> lpBaseName, int nSize) → int

Retrieves the base name of the specified device driver.

GetDeviceDriverFileName(Pointer<NativeType> ImageBase, Pointer<Utf16> lpFilename, int nSize) → int

Retrieves the path available for the specified device driver.

GetDiskFreeSpace(Pointer<Utf16> lpRootPathName, Pointer<Uint32> lpSectorsPerCluster, Pointer<Uint32> lpBytesPerSector, Pointer<Uint32> lpNumberOfFreeClusters, Pointer<Uint32> lpTotalNumberOfClusters) → int

Retrieves information about the specified disk, including the amount of free space on the disk.

GetDiskFreeSpaceEx(Pointer<Utf16> lpDirectoryName, Pointer<Uint64> lpFreeBytesAvailableToCaller, Pointer<Uint64> lpTotalNumberOfBytes, Pointer<Uint64> lpTotalNumberOfFreeBytes) → int

Retrieves information about the amount of space that is available on a disk volume, which is the total amount of space, the total amount of free space, and the total amount of free space available to the user that is associated with the calling thread.

GetDllDirectory(int nBufferLength, Pointer<Utf16> lpBuffer) → int

Retrieves the application-specific portion of the search path used to locate DLLs for the application.

GetDriveType(Pointer<Utf16> lpRootPathName) → int

Determines whether a disk drive is a removable, fixed, CD-ROM, RAM disk, or network drive.

GetEnvironmentVariable(Pointer<Utf16> lpName, Pointer<Utf16> lpBuffer, int nSize) → int

Retrieves the contents of the specified variable from the environment block of the calling process.

GetExitCodeProcess(int hProcess, Pointer<Uint32> lpExitCode) → int

Retrieves the termination status of the specified process.

GetFileAttributes(Pointer<Utf16> lpFileName) → int

Retrieves file system attributes for a specified file or directory.

GetFileAttributesEx(Pointer<Utf16> lpFileName, int fInfoLevelId, Pointer<NativeType> lpFileInformation) → int

Retrieves attributes for a specified file or directory.

GetFileInformationByHandle(int hFile, Pointer<BY_HANDLE_FILE_INFORMATION> lpFileInformation) → int

Retrieves file information for the specified file.

GetFileSize(int hFile, Pointer<Uint32> lpFileSizeHigh) → int

Retrieves the size of the specified file, in bytes. It is recommended that you use GetFileSizeEx.

GetFileSizeEx(int hFile, Pointer<Int64> lpFileSize) → int

Retrieves the size of the specified file.

GetFileType(int hFile) → int

Retrieves the file type of the specified file.

GetFinalPathNameByHandle(int hFile, Pointer<Utf16> lpszFilePath, int cchFilePath, int dwFlags) → int

Retrieves the final path for the specified file.

GetFullPathName(Pointer<Utf16> lpFileName, int nBufferLength, Pointer<Utf16> lpBuffer, Pointer<Pointer<Utf16>> lpFilePart) → int

Retrieves the full path and file name of the specified file.

GetHandleInformation(int hObject, Pointer<Uint32> lpdwFlags) → int

Retrieves certain properties of an object handle.

GetIntegratedDisplaySize(Pointer<Double> sizeInInches) → int

Retrieves the best estimate of the diagonal size of the built-in screen, in inches.

GetLargestConsoleWindowSize(int hConsoleOutput) → COORD

Retrieves the size of the largest possible console window, based on the current font and the size of the display.

GetLastError() → int

Retrieves the calling thread's last-error code value. The last-error code is maintained on a per-thread basis. Multiple threads do not overwrite each other's last-error code.

GetLocaleInfoEx(Pointer<Utf16> lpLocaleName, int LCType, Pointer<Utf16> lpLCData, int cchData) → int

Retrieves information about a locale specified by name.

GetLocalTime(Pointer<SYSTEMTIME> lpSystemTime) → void

Retrieves the current local date and time.

GetLogicalDrives() → int

Retrieves a bitmask representing the currently available disk drives.

GetLogicalDriveStrings(int nBufferLength, Pointer<Utf16> lpBuffer) → int

Fills a buffer with strings that specify valid drives in the system.

GetLogicalProcessorInformation(Pointer<SYSTEM_LOGICAL_PROCESSOR_INFORMATION> Buffer, Pointer<Uint32> ReturnedLength) → int

Retrieves information about logical processors and related hardware.

GetLongPathName(Pointer<Utf16> lpszShortPath, Pointer<Utf16> lpszLongPath, int cchBuffer) → int

Converts the specified path to its long form.

GetMachineTypeAttributes(int Machine, Pointer<Int32> MachineTypeAttributes) → int

Queries if the specified architecture is supported on the current system, either natively or by any form of compatibility or emulation layer.

GetMappedFileName(int hProcess, Pointer<NativeType> lpv, Pointer<Utf16> lpFilename, int nSize) → int

Checks whether the specified address is within a memory-mapped file in the address space of the specified process. If so, the function returns the name of the memory-mapped file.

GetMaximumProcessorCount(int GroupNumber) → int

Returns the maximum number of logical processors that a processor group or the system can have.

GetMaximumProcessorGroupCount() → int

Returns the maximum number of processor groups that the system can have.

GetModuleBaseName(int hProcess, int hModule, Pointer<Utf16> lpBaseName, int nSize) → int

Retrieves the base name of the specified module.

GetModuleFileName(int hModule, Pointer<Utf16> lpFilename, int nSize) → int

Retrieves the fully qualified path for the file that contains the specified module. The module must have been loaded by the current process.

GetModuleFileNameEx(int hProcess, int hModule, Pointer<Utf16> lpFilename, int nSize) → int

Retrieves the fully qualified path for the file containing the specified module.

GetModuleHandle(Pointer<Utf16> lpModuleName) → int

Retrieves a module handle for the specified module. The module must have been loaded by the calling process.

GetModuleHandleEx(int dwFlags, Pointer<Utf16> lpModuleName, Pointer<IntPtr> phModule) → int

Retrieves a module handle for the specified module and increments the module's reference count unless GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT is specified. The module must have been loaded by the calling process.

GetModuleInformation(int hProcess, int hModule, Pointer<MODULEINFO> lpmodinfo, int cb) → int

Retrieves information about the specified module in the MODULEINFO structure.

GetNamedPipeClientComputerName(int Pipe, Pointer<Utf16> ClientComputerName, int ClientComputerNameLength) → int

Retrieves the client computer name for the specified named pipe.

GetNamedPipeClientProcessId(int Pipe, Pointer<Uint32> ClientProcessId) → int

Retrieves the client process identifier for the specified named pipe.

GetNamedPipeClientSessionId(int Pipe, Pointer<Uint32> ClientSessionId) → int

Retrieves the client process identifier for the specified named pipe.

GetNamedPipeHandleState(int hNamedPipe, Pointer<Uint32> lpState, Pointer<Uint32> lpCurInstances, Pointer<Uint32> lpMaxCollectionCount, Pointer<Uint32> lpCollectDataTimeout, Pointer<Utf16> lpUserName, int nMaxUserNameSize) → int

Retrieves information about a specified named pipe. The information returned can vary during the lifetime of an instance of the named pipe.

GetNamedPipeInfo(int hNamedPipe, Pointer<Uint32> lpFlags, Pointer<Uint32> lpOutBufferSize, Pointer<Uint32> lpInBufferSize, Pointer<Uint32> lpMaxInstances) → int

Retrieves information about the specified named pipe.

GetNativeSystemInfo(Pointer<SYSTEM_INFO> lpSystemInfo) → void

Retrieves information about the current system to an application running under WOW64. If the function is called from a 64-bit application, or on a 64-bit system that does not have an Intel64 or x64 processor (such as ARM64), it is equivalent to the GetSystemInfo function.

GetNumberOfConsoleInputEvents(int hConsoleInput, Pointer<Uint32> lpNumberOfEvents) → int

Retrieves the number of unread input records in the console's input buffer.

GetOverlappedResult(int hFile, Pointer<OVERLAPPED> lpOverlapped, Pointer<Uint32> lpNumberOfBytesTransferred, int bWait) → int

Retrieves the results of an overlapped operation on the specified file, named pipe, or communications device. To specify a timeout interval or wait on an alertable thread, use GetOverlappedResultEx.

GetOverlappedResultEx(int hFile, Pointer<OVERLAPPED> lpOverlapped, Pointer<Uint32> lpNumberOfBytesTransferred, int dwMilliseconds, int bAlertable) → int

Retrieves the results of an overlapped operation on the specified file, named pipe, or communications device within the specified time-out interval. The calling thread can perform an alertable wait.

GetPerformanceInfo(Pointer<PERFORMANCE_INFORMATION> pPerformanceInformation, int cb) → int

Retrieves the performance values contained in the PERFORMANCE_INFORMATION structure.

GetPhysicallyInstalledSystemMemory(Pointer<Uint64> TotalMemoryInKilobytes) → int

Retrieves the amount of RAM that is physically installed on the computer.

GetProcAddress(int hModule, Pointer<Utf8> lpProcName) → Pointer<NativeType>

Retrieves the address of an exported function or variable from the specified dynamic-link library (DLL).

GetProcessHeap() → int

Retrieves a handle to the default heap of the calling process. This handle can then be used in subsequent calls to the heap functions.

GetProcessHeaps(int NumberOfHeaps, Pointer<IntPtr> ProcessHeaps) → int

Returns the number of active heaps and retrieves handles to all of the active heaps for the calling process.

GetProcessId(int Process) → int

Retrieves the process identifier of the specified process.

GetProcessImageFileName(int hProcess, Pointer<Utf16> lpImageFileName, int nSize) → int

Retrieves the name of the executable file for the specified process.

GetProcessShutdownParameters(Pointer<Uint32> lpdwLevel, Pointer<Uint32> lpdwFlags) → int

Retrieves the shutdown parameters for the currently calling process.

GetProcessTimes(int hProcess, Pointer<FILETIME> lpCreationTime, Pointer<FILETIME> lpExitTime, Pointer<FILETIME> lpKernelTime, Pointer<FILETIME> lpUserTime) → int

Retrieves timing information for the specified process.

GetProcessVersion(int ProcessId) → int

Retrieves the major and minor version numbers of the system on which the specified process expects to run.

GetProcessWorkingSetSize(int hProcess, Pointer<IntPtr> lpMinimumWorkingSetSize, Pointer<IntPtr> lpMaximumWorkingSetSize) → int

Retrieves the minimum and maximum working set sizes of the specified process.

GetProductInfo(int dwOSMajorVersion, int dwOSMinorVersion, int dwSpMajorVersion, int dwSpMinorVersion, Pointer<Uint32> pdwReturnedProductType) → int

Retrieves the product type for the operating system on the local computer, and maps the type to the product types supported by the specified operating system.

GetQueuedCompletionStatus(int CompletionPort, Pointer<Uint32> lpNumberOfBytesTransferred, Pointer<IntPtr> lpCompletionKey, Pointer<Pointer<OVERLAPPED>> lpOverlapped, int dwMilliseconds) → int

Attempts to dequeue an I/O completion packet from the specified I/O completion port. If there is no completion packet queued, the function waits for a pending I/O operation associated with the completion port to complete.

GetQueuedCompletionStatusEx(int CompletionPort, Pointer<OVERLAPPED_ENTRY> lpCompletionPortEntries, int ulCount, Pointer<Uint32> ulNumEntriesRemoved, int dwMilliseconds, int fAlertable) → int

Retrieves multiple completion port entries simultaneously. It waits for pending I/O operations that are associated with the specified completion port to complete.

GetShortPathName(Pointer<Utf16> lpszLongPath, Pointer<Utf16> lpszShortPath, int cchBuffer) → int

Retrieves the short path form of the specified path.

GetStartupInfo(Pointer<STARTUPINFO> lpStartupInfo) → void

Retrieves the contents of the STARTUPINFO structure that was specified when the calling process was created.

GetStdHandle(int nStdHandle) → int

Retrieves a handle to the specified standard device (standard input, standard output, or standard error).

GetSystemDefaultLangID() → int

Returns the language identifier for the system locale.

GetSystemDefaultLocaleName(Pointer<Utf16> lpLocaleName, int cchLocaleName) → int

Retrieves the system default locale name.

GetSystemDirectory(Pointer<Utf16> lpBuffer, int uSize) → int

Retrieves the path of the system directory. The system directory contains system files such as dynamic-link libraries and drivers.

GetSystemInfo(Pointer<SYSTEM_INFO> lpSystemInfo) → void

Retrieves information about the current system. To retrieve accurate information for an application running on WOW64, call the GetNativeSystemInfo function.

GetSystemPowerStatus(Pointer<SYSTEM_POWER_STATUS> lpSystemPowerStatus) → int

Retrieves the power status of the system. The status indicates whether the system is running on AC or DC power, whether the battery is currently charging, how much battery life remains, and if battery saver is on or off.

GetSystemTime(Pointer<SYSTEMTIME> lpSystemTime) → void

Retrieves the current local date and time.

GetSystemTimeAdjustment(Pointer<Uint32> lpTimeAdjustment, Pointer<Uint32> lpTimeIncrement, Pointer<Int32> lpTimeAdjustmentDisabled) → int

Determines whether the system is applying periodic time adjustments to its time-of-day clock, and obtains the value and period of any such adjustments.

GetSystemTimes(Pointer<FILETIME> lpIdleTime, Pointer<FILETIME> lpKernelTime, Pointer<FILETIME> lpUserTime) → int

Retrieves system timing information. On a multiprocessor system, the values returned are the sum of the designated times across all processors.

GetTempFileName(Pointer<Utf16> lpPathName, Pointer<Utf16> lpPrefixString, int uUnique, Pointer<Utf16> lpTempFileName) → int

Creates a name for a temporary file. If a unique file name is generated, an empty file is created and the handle to it is released; otherwise, only a file name is generated.

GetTempPath(int nBufferLength, Pointer<Utf16> lpBuffer) → int

Retrieves the path of the directory designated for temporary files.

GetTempPath2(int BufferLength, Pointer<Utf16> Buffer) → int

Retrieves the path of the directory designated for temporary files, based on the privileges of the calling process.

GetThreadId(int Thread) → int

Retrieves the thread identifier of the specified thread.

GetThreadLocale() → int

Returns the locale identifier of the current locale for the calling thread.

GetThreadTimes(int hThread, Pointer<FILETIME> lpCreationTime, Pointer<FILETIME> lpExitTime, Pointer<FILETIME> lpKernelTime, Pointer<FILETIME> lpUserTime) → int

Retrieves timing information for the specified thread.

GetThreadUILanguage() → int

Returns the language identifier of the first user interface language for the current thread.

GetTickCount() → int

Retrieves the number of milliseconds that have elapsed since the system was started, up to 49.7 days.

GetUserDefaultLangID() → int

Returns the language identifier of the Region Format setting for the current user.

GetUserDefaultLCID() → int

Returns the locale identifier for the user default locale.

GetUserDefaultLocaleName(Pointer<Utf16> lpLocaleName, int cchLocaleName) → int

Retrieves the user default locale name.

GetVersionEx(Pointer<OSVERSIONINFO> lpVersionInformation) → int

Gets information about the operating system version.

GetVolumeInformation(Pointer<Utf16> lpRootPathName, Pointer<Utf16> lpVolumeNameBuffer, int nVolumeNameSize, Pointer<Uint32> lpVolumeSerialNumber, Pointer<Uint32> lpMaximumComponentLength, Pointer<Uint32> lpFileSystemFlags, Pointer<Utf16> lpFileSystemNameBuffer, int nFileSystemNameSize) → int

Retrieves information about the file system and volume associated with the specified root directory.

GetVolumeInformationByHandle(int hFile, Pointer<Utf16> lpVolumeNameBuffer, int nVolumeNameSize, Pointer<Uint32> lpVolumeSerialNumber, Pointer<Uint32> lpMaximumComponentLength, Pointer<Uint32> lpFileSystemFlags, Pointer<Utf16> lpFileSystemNameBuffer, int nFileSystemNameSize) → int

Retrieves information about the file system and volume associated with the specified file.

GetVolumeNameForVolumeMountPoint(Pointer<Utf16> lpszVolumeMountPoint, Pointer<Utf16> lpszVolumeName, int cchBufferLength) → int

Retrieves a volume GUID path for the volume that is associated with the specified volume mount point (drive letter, volume GUID path, or mounted folder).

GetVolumePathName(Pointer<Utf16> lpszFileName, Pointer<Utf16> lpszVolumePathName, int cchBufferLength) → int

Retrieves the volume mount point where the specified path is mounted.

GetVolumePathNamesForVolumeName(Pointer<Utf16> lpszVolumeName, Pointer<Utf16> lpszVolumePathNames, int cchBufferLength, Pointer<Uint32> lpcchReturnLength) → int

Retrieves a list of drive letters and mounted folder paths for the specified volume.

GlobalAlloc(int uFlags, int dwBytes) → Pointer<NativeType>

Allocates the specified number of bytes from the heap.

GlobalFree(Pointer<NativeType> hMem) → Pointer<NativeType>

Frees the specified global memory object and invalidates its handle.

GlobalLock(Pointer<NativeType> hMem) → Pointer<NativeType>

Locks a global memory object and returns a pointer to the first byte of the object's memory block.

GlobalMemoryStatusEx(Pointer<MEMORYSTATUSEX> lpBuffer) → int

Retrieves information about the system's current usage of both physical and virtual memory.

GlobalSize(Pointer<NativeType> hMem) → int

Retrieves the current size of the specified global memory object, in bytes.

GlobalUnlock(Pointer<NativeType> hMem) → int

Decrements the lock count associated with a memory object that was allocated with GMEM_MOVEABLE. This function has no effect on memory objects allocated with GMEM_FIXED.

HeapAlloc(int hHeap, int dwFlags, int dwBytes) → Pointer<NativeType>

Allocates a block of memory from a heap. The allocated memory is not movable.

HeapCompact(int hHeap, int dwFlags) → int

Returns the size of the largest committed free block in the specified heap. If the Disable heap coalesce on free global flag is set, this function also coalesces adjacent free blocks of memory in the heap.

HeapCreate(int flOptions, int dwInitialSize, int dwMaximumSize) → int

Creates a private heap object that can be used by the calling process. The function reserves space in the virtual address space of the process and allocates physical storage for a specified initial portion of this block.

HeapDestroy(int hHeap) → int

Destroys the specified heap object. It decommits and releases all the pages of a private heap object, and it invalidates the handle to the heap.

HeapFree(int hHeap, int dwFlags, Pointer<NativeType> lpMem) → int

Frees a memory block allocated from a heap by the HeapAlloc or HeapReAlloc function.

HeapLock(int hHeap) → int

Attempts to acquire the critical section object, or lock, that is associated with a specified heap.

HeapQueryInformation(int HeapHandle, int HeapInformationClass, Pointer<NativeType> HeapInformation, int HeapInformationLength, Pointer<IntPtr> ReturnLength) → int

Retrieves information about the specified heap.

HeapReAlloc(int hHeap, int dwFlags, Pointer<NativeType> lpMem, int dwBytes) → Pointer<NativeType>

Retrieves information about the specified heap.

HeapSetInformation(int HeapHandle, int HeapInformationClass, Pointer<NativeType> HeapInformation, int HeapInformationLength) → int

Enables features for a specified heap.

HeapSize(int hHeap, int dwFlags, Pointer<NativeType> lpMem) → int

Retrieves the size of a memory block allocated from a heap by the HeapAlloc or HeapReAlloc function.

HeapUnlock(int hHeap) → int

Releases ownership of the critical section object, or lock, that is associated with a specified heap. It reverses the action of the HeapLock function.

HeapValidate(int hHeap, int dwFlags, Pointer<NativeType> lpMem) → int

Validates the specified heap. The function scans all the memory blocks in the heap and verifies that the heap control structures maintained by the heap manager are in a consistent state. You can also use the HeapValidate function to validate a single memory block within a specified heap without checking the validity of the entire heap.

HeapWalk(int hHeap, Pointer<PROCESS_HEAP_ENTRY> lpEntry) → int

Enumerates the memory blocks in the specified heap.

InitializeProcThreadAttributeList(Pointer<NativeType> lpAttributeList, int dwAttributeCount, int dwFlags, Pointer<IntPtr> lpSize) → int

Initializes the specified list of attributes for process and thread creation.

IsDebuggerPresent() → int

Determines whether the calling process is being debugged by a user-mode debugger.

IsNativeVhdBoot(Pointer<Int32> NativeVhdBoot) → int

Indicates if the OS was booted from a VHD container.

IsProcessInJob(int ProcessHandle, int JobHandle, Pointer<Int32> Result) → int

Determines whether the process is running in the specified job.

IsSystemResumeAutomatic() → int

Determines the current state of the computer.

IsValidLocaleName(Pointer<Utf16> lpLocaleName) → int

Determines if the specified locale name is valid for a locale that is installed or supported on the operating system.

IsWow64Process2(int hProcess, Pointer<Uint16> pProcessMachine, Pointer<Uint16> pNativeMachine) → int

Determines whether the specified process is running under WOW64. Also returns additional machine process and architecture information.

LoadLibrary(Pointer<Utf16> lpLibFileName) → int

Loads the specified module into the address space of the calling process. The specified module may cause other modules to be loaded.

LoadLibraryEx(Pointer<Utf16> lpLibFileName, int hFile, int dwFlags) → int

Loads the specified module into the address space of the calling process. The specified module may cause other modules to be loaded.

LoadResource(int hModule, int hResInfo) → Pointer<NativeType>

Retrieves a handle that can be used to obtain a pointer to the first byte of the specified resource in memory.

LocalFree(Pointer<NativeType> hMem) → Pointer<NativeType>

Frees the specified local memory object and invalidates its handle.

LockFile(int hFile, int dwFileOffsetLow, int dwFileOffsetHigh, int nNumberOfBytesToLockLow, int nNumberOfBytesToLockHigh) → int

Locks the specified file for exclusive access by the calling process.

LockFileEx(int hFile, int dwFlags, int dwReserved, int nNumberOfBytesToLockLow, int nNumberOfBytesToLockHigh, Pointer<OVERLAPPED> lpOverlapped) → int

Locks the specified file for exclusive access by the calling process. This function can operate either synchronously or asynchronously and can request either an exclusive or a shared lock.

LockResource(Pointer<NativeType> hResData) → Pointer<NativeType>

Retrieves a pointer to the specified resource in memory.

MoveFile(Pointer<Utf16> lpExistingFileName, Pointer<Utf16> lpNewFileName) → int

Moves an existing file or a directory, including its children.

OpenCommPort(int uPortNumber, int dwDesiredAccess, int dwFlagsAndAttributes) → int

Attempts to open a communication device.

OpenEvent(int dwDesiredAccess, int bInheritHandle, Pointer<Utf16> lpName) → int

Opens an existing named event object.

OpenJobObject(int dwDesiredAccess, int bInheritHandle, Pointer<Utf16> lpName) → int

Opens an existing job object.

OpenProcess(int dwDesiredAccess, int bInheritHandle, int dwProcessId) → int

Opens an existing local process object.

OutputDebugString(Pointer<Utf16> lpOutputString) → void

Sends a string to the debugger for display.

PackageFamilyNameFromFullName(Pointer<Utf16> packageFullName, Pointer<Uint32> packageFamilyNameLength, Pointer<Utf16> packageFamilyName) → int

Gets the package family name for the specified package full name.

PeekConsoleInput(int hConsoleInput, Pointer<INPUT_RECORD> lpBuffer, int nLength, Pointer<Uint32> lpNumberOfEventsRead) → int

Reads data from the specified console input buffer without removing it from the buffer.

PeekNamedPipe(int hNamedPipe, Pointer<NativeType> lpBuffer, int nBufferSize, Pointer<Uint32> lpBytesRead, Pointer<Uint32> lpTotalBytesAvail, Pointer<Uint32> lpBytesLeftThisMessage) → int

Copies data from a named or anonymous pipe into a buffer without removing it from the pipe. It also returns information about data in the pipe.

PostQueuedCompletionStatus(int CompletionPort, int dwNumberOfBytesTransferred, int dwCompletionKey, Pointer<OVERLAPPED> lpOverlapped) → int

Posts an I/O completion packet to an I/O completion port.

PurgeComm(int hFile, int dwFlags) → int

Discards all characters from the output or input buffer of a specified communications resource. It can also terminate pending read or write operations on the resource.

QueryDosDevice(Pointer<Utf16> lpDeviceName, Pointer<Utf16> lpTargetPath, int ucchMax) → int

Retrieves information about MS-DOS device names. The function can obtain the current mapping for a particular MS-DOS device name. The function can also obtain a list of all existing MS-DOS device names.

QueryFullProcessImageName(int hProcess, int dwFlags, Pointer<Utf16> lpExeName, Pointer<Uint32> lpdwSize) → int

Retrieves the full name of the executable image for the specified process.

QueryInformationJobObject(int hJob, int JobObjectInformationClass, Pointer<NativeType> lpJobObjectInformation, int cbJobObjectInformationLength, Pointer<Uint32> lpReturnLength) → int

Retrieves limit and job state information from the job object.

QueryIoRateControlInformationJobObject(int hJob, Pointer<Utf16> VolumeName, Pointer<Pointer<JOBOBJECT_IO_RATE_CONTROL_INFORMATION>> InfoBlocks, Pointer<Uint32> InfoBlockCount) → int

Gets information about the control of the I/O rate for a job object.

QueryPerformanceCounter(Pointer<Int64> lpPerformanceCount) → int

Retrieves the current value of the performance counter, which is a high resolution (<1us) time stamp that can be used for time-interval measurements.

QueryPerformanceFrequency(Pointer<Int64> lpFrequency) → int

Retrieves the frequency of the performance counter. The frequency of the performance counter is fixed at system boot and is consistent across all processors. Therefore, the frequency need only be queried upon application initialization, and the result can be cached.

ReadConsole(int hConsoleInput, Pointer<NativeType> lpBuffer, int nNumberOfCharsToRead, Pointer<Uint32> lpNumberOfCharsRead, Pointer<CONSOLE_READCONSOLE_CONTROL> pInputControl) → int

Reads character input from the console input buffer and removes it from the buffer.

ReadConsoleInput(int hConsoleInput, Pointer<INPUT_RECORD> lpBuffer, int nLength, Pointer<Uint32> lpNumberOfEventsRead) → int

Reads data from a console input buffer and removes it from the buffer.

ReadFile(int hFile, Pointer<Uint8> lpBuffer, int nNumberOfBytesToRead, Pointer<Uint32> lpNumberOfBytesRead, Pointer<OVERLAPPED> lpOverlapped) → int

Reads data from the specified file or input/output (I/O) device. Reads occur at the position specified by the file pointer if supported by the device.

ReadFileEx(int hFile, Pointer<Uint8> lpBuffer, int nNumberOfBytesToRead, Pointer<OVERLAPPED> lpOverlapped, Pointer<NativeFunction<LPOVERLAPPED_COMPLETION_ROUTINE>> lpCompletionRoutine) → int

Reads data from the specified file or input/output (I/O) device. It reports its completion status asynchronously, calling the specified completion routine when reading is completed or canceled and the calling thread is in an alertable wait state.

ReadFileScatter(int hFile, Pointer<FILE_SEGMENT_ELEMENT> aSegmentArray, int nNumberOfBytesToRead, Pointer<Uint32> lpReserved, Pointer<OVERLAPPED> lpOverlapped) → int

Reads data from a file and stores it in an array of buffers. The function starts reading data from the file at a position that is specified by an OVERLAPPED structure. The ReadFileScatter function operates asynchronously.

ReadProcessMemory(int hProcess, Pointer<NativeType> lpBaseAddress, Pointer<NativeType> lpBuffer, int nSize, Pointer<IntPtr> lpNumberOfBytesRead) → int

ReadProcessMemory copies the data in the specified address range from the address space of the specified process into the specified buffer of the current process. Any process that has a handle with PROCESS_VM_READ access can call the function.

ReleaseActCtx(int hActCtx) → void

The ReleaseActCtx function decrements the reference count of the specified activation context.

RemoveDirectory(Pointer<Utf16> lpPathName) → int

Deletes an existing empty directory.

RemoveDllDirectory(Pointer<NativeType> Cookie) → int

Removes a directory that was added to the process DLL search path by using AddDllDirectory.

ReOpenFile(int hOriginalFile, int dwDesiredAccess, int dwShareMode, int dwFlagsAndAttributes) → int

Reopens the specified file system object with different access rights, sharing mode, and flags.

ResetEvent(int hEvent) → int

Sets the specified event object to the nonsignaled state.

ResizePseudoConsole(int hPC, COORD size) → int

Resizes the internal buffers for a pseudoconsole to the given size.

ScrollConsoleScreenBuffer(int hConsoleOutput, Pointer<SMALL_RECT> lpScrollRectangle, Pointer<SMALL_RECT> lpClipRectangle, COORD dwDestinationOrigin, Pointer<CHAR_INFO> lpFill) → int

Moves a block of data in a screen buffer. The effects of the move can be limited by specifying a clipping rectangle, so the contents of the console screen buffer outside the clipping rectangle are unchanged.

SetCommBreak(int hFile) → int

Suspends character transmission for a specified communications device and places the transmission line in a break state until the ClearCommBreak function is called.

SetCommConfig(int hCommDev, Pointer<COMMCONFIG> lpCC, int dwSize) → int

Sets the current configuration of a communications device.

SetCommMask(int hFile, int dwEvtMask) → int

Specifies a set of events to be monitored for a communications device.

SetCommState(int hFile, Pointer<DCB> lpDCB) → int

Configures a communications device according to the specifications in a device-control block (a DCB structure). The function reinitializes all hardware and control settings, but it does not empty output or input queues.

SetCommTimeouts(int hFile, Pointer<COMMTIMEOUTS> lpCommTimeouts) → int

Sets the time-out parameters for all read and write operations on a specified communications device.

SetConsoleCtrlHandler(Pointer<NativeFunction<PHANDLER_ROUTINE>> HandlerRoutine, int Add) → int

Adds or removes an application-defined HandlerRoutine function from the list of handler functions for the calling process.

SetConsoleCursorInfo(int hConsoleOutput, Pointer<CONSOLE_CURSOR_INFO> lpConsoleCursorInfo) → int

Sets the size and visibility of the cursor for the specified console screen buffer.

SetConsoleCursorPosition(int hConsoleOutput, COORD dwCursorPosition) → int

Sets the cursor position in the specified console screen buffer.

SetConsoleDisplayMode(int hConsoleOutput, int dwFlags, Pointer<COORD> lpNewScreenBufferDimensions) → int

Sets the display mode of the specified console screen buffer.

SetConsoleMode(int hConsoleHandle, int dwMode) → int

Sets the input mode of a console's input buffer or the output mode of a console screen buffer.

SetConsoleTextAttribute(int hConsoleOutput, int wAttributes) → int

Sets the attributes of characters written to the console screen buffer by the WriteFile or WriteConsole function, or echoed by the ReadFile or ReadConsole function. This function affects text written after the function call.

SetConsoleWindowInfo(int hConsoleOutput, int bAbsolute, Pointer<SMALL_RECT> lpConsoleWindow) → int

Sets the current size and position of a console screen buffer's window.

SetCurrentDirectory(Pointer<Utf16> lpPathName) → int

Changes the current directory for the current process.

SetDefaultCommConfig(Pointer<Utf16> lpszName, Pointer<COMMCONFIG> lpCC, int dwSize) → int

Sets the default configuration for a communications device.

SetDefaultDllDirectories(int DirectoryFlags) → int

Specifies a default set of directories to search when the calling process loads a DLL. This search path is used when LoadLibraryEx is called with no LOAD_LIBRARY_SEARCH flags.

SetEndOfFile(int hFile) → int

Sets the physical file size for the specified file to the current position of the file pointer.

SetEnvironmentVariable(Pointer<Utf16> lpName, Pointer<Utf16> lpValue) → int

Sets the contents of the specified environment variable for the current process.

SetErrorMode(int uMode) → int

Sets the specified event object to the signaled state.

SetEvent(int hEvent) → int

Sets the specified event object to the signaled state.

SetFileApisToANSI() → void

Causes the file I/O functions to use the ANSI character set code page for the current process.

SetFileApisToOEM() → void

Causes the file I/O functions for the process to use the OEM character set code page.

SetFileAttributes(Pointer<Utf16> lpFileName, int dwFileAttributes) → int

Sets the attributes for a file or directory.

SetFileInformationByHandle(int hFile, int FileInformationClass, Pointer<NativeType> lpFileInformation, int dwBufferSize) → int

Sets the file information for the specified file.

SetFileIoOverlappedRange(int FileHandle, Pointer<Uint8> OverlappedRangeStart, int Length) → int

Associates a virtual address range with the specified file handle. This indicates that the kernel should optimize any further asynchronous I/O requests with overlapped structures inside this range. The overlapped range is locked in memory, and then unlocked when the file is closed. After a range is associated with a file handle, it cannot be disassociated.

SetFilePointer(int hFile, int lDistanceToMove, Pointer<Int32> lpDistanceToMoveHigh, int dwMoveMethod) → int

Moves the file pointer of the specified file.

SetFilePointerEx(int hFile, int liDistanceToMove, Pointer<Int64> lpNewFilePointer, int dwMoveMethod) → int

Moves the file pointer of the specified file.

SetFileShortName(int hFile, Pointer<Utf16> lpShortName) → int

Sets the short name for the specified file. The file must be on an NTFS file system volume.

SetFileValidData(int hFile, int ValidDataLength) → int

Sets the valid data length of the specified file. This function is useful in very limited scenarios.

SetFirmwareEnvironmentVariable(Pointer<Utf16> lpName, Pointer<Utf16> lpGuid, Pointer<NativeType> pValue, int nSize) → int

Sets the value of the specified firmware environment variable.

SetFirmwareEnvironmentVariableEx(Pointer<Utf16> lpName, Pointer<Utf16> lpGuid, Pointer<NativeType> pValue, int nSize, int dwAttributes) → int

Sets the value of the specified firmware environment variable and the attributes that indicate how this variable is stored and maintained.

SetHandleInformation(int hObject, int dwMask, int dwFlags) → int

Sets certain properties of an object handle.

SetInformationJobObject(int hJob, int JobObjectInformationClass, Pointer<NativeType> lpJobObjectInformation, int cbJobObjectInformationLength) → int

Sets limits for a job object.

SetIoRateControlInformationJobObject(int hJob, Pointer<JOBOBJECT_IO_RATE_CONTROL_INFORMATION> IoRateControlInfo) → int

Sets I/O limits on a job object.

SetNamedPipeHandleState(int hNamedPipe, Pointer<Uint32> lpMode, Pointer<Uint32> lpMaxCollectionCount, Pointer<Uint32> lpCollectDataTimeout) → int

Sets the read mode and the blocking mode of the specified named pipe. If the specified handle is to the client end of a named pipe and if the named pipe server process is on a remote computer, the function can also be used to control local buffering.

SetProcessAffinityMask(int hProcess, int dwProcessAffinityMask) → int

Sets a processor affinity mask for the threads of the specified process.

SetProcessPriorityBoost(int hProcess, int bDisablePriorityBoost) → int

Disables or enables the ability of the system to temporarily boost the priority of the threads of the specified process.

SetProcessWorkingSetSize(int hProcess, int dwMinimumWorkingSetSize, int dwMaximumWorkingSetSize) → int

Sets the minimum and maximum working set sizes for the specified process.

SetStdHandle(int nStdHandle, int hHandle) → int

Sets the handle for the specified standard device (standard input, standard output, or standard error).

SetThreadAffinityMask(int hThread, int dwThreadAffinityMask) → int

Sets a processor affinity mask for the specified thread.

SetThreadErrorMode(int dwNewMode, Pointer<Uint32> lpOldMode) → int

Controls whether the system will handle the specified types of serious errors or whether the calling thread will handle them.

SetThreadExecutionState(int esFlags) → int

Enables an application to inform the system that it is in use, thereby preventing the system from entering sleep or turning off the display while the application is running.

SetThreadUILanguage(int LangId) → int

Sets the user interface language for the current thread.

SetupComm(int hFile, int dwInQueue, int dwOutQueue) → int

Initializes the communications parameters for a specified communications device.

SetVolumeLabel(Pointer<Utf16> lpRootPathName, Pointer<Utf16> lpVolumeName) → int

Sets the label of a file system volume.

SizeofResource(int hModule, int hResInfo) → int

Retrieves the size, in bytes, of the specified resource.

Sleep(int dwMilliseconds) → void

Suspends the execution of the current thread until the time-out interval elapses.

SleepEx(int dwMilliseconds, int bAlertable) → int

Suspends the current thread until the specified condition is met. Execution resumes when one of the following occurs: (i) an I/O completion callback function is called; (ii) an asynchronous procedure call (APC) is queued to the thread; (iii) the time-out interval elapses.

SystemTimeToFileTime(Pointer<SYSTEMTIME> lpSystemTime, Pointer<FILETIME> lpFileTime) → int

Converts a system time to file time format. System time is based on Coordinated Universal Time (UTC).

TerminateJobObject(int hJob, int uExitCode) → int

Terminates all processes currently associated with the job. If the job is nested, this function terminates all processes currently associated with the job and all of its child jobs in the hierarchy.

TerminateProcess(int hProcess, int uExitCode) → int

Terminates the specified process and all of its threads.

TerminateThread(int hThread, int dwExitCode) → int

Terminates a thread.

TransactNamedPipe(int hNamedPipe, Pointer<NativeType> lpInBuffer, int nInBufferSize, Pointer<NativeType> lpOutBuffer, int nOutBufferSize, Pointer<Uint32> lpBytesRead, Pointer<OVERLAPPED> lpOverlapped) → int

Combines the functions that write a message to and read a message from the specified named pipe into a single network operation.

TransmitCommChar(int hFile, int cChar) → int

Transmits a specified character ahead of any pending data in the output buffer of the specified communications device.

UnlockFile(int hFile, int dwFileOffsetLow, int dwFileOffsetHigh, int nNumberOfBytesToUnlockLow, int nNumberOfBytesToUnlockHigh) → int

Unlocks a region in an open file. Unlocking a region enables other processes to access the region.

UnlockFileEx(int hFile, int dwReserved, int nNumberOfBytesToUnlockLow, int nNumberOfBytesToUnlockHigh, Pointer<OVERLAPPED> lpOverlapped) → int

Unlocks a region in the specified file. This function can operate either synchronously or asynchronously.

UpdateProcThreadAttribute(Pointer<NativeType> lpAttributeList, int dwFlags, int Attribute, Pointer<NativeType> lpValue, int cbSize, Pointer<NativeType> lpPreviousValue, Pointer<IntPtr> lpReturnSize) → int

Updates the specified attribute in a list of attributes for process and thread creation.

UpdateResource(int hUpdate, Pointer<Utf16> lpType, Pointer<Utf16> lpName, int wLanguage, Pointer<NativeType> lpData, int cb) → int

Adds, deletes, or replaces a resource in a portable executable (PE) file.

VerifyVersionInfo(Pointer<OSVERSIONINFOEX> lpVersionInformation, int dwTypeMask, int dwlConditionMask) → int

Compares a set of operating system version requirements to the corresponding values for the currently running version of the system. This function is subject to manifest-based behavior.

VerLanguageName(int wLang, Pointer<Utf16> szLang, int cchLang) → int

Retrieves a description string for the language associated with a specified binary Microsoft language identifier.

VerSetConditionMask(int ConditionMask, int TypeMask, int Condition) → int

Sets the bits of a 64-bit value to indicate the comparison operator to use for a specified operating system version attribute. This function is used to build the dwlConditionMask parameter of the VerifyVersionInfo function.

VirtualAlloc(Pointer<NativeType> lpAddress, int dwSize, int flAllocationType, int flProtect) → Pointer<NativeType>

Reserves, commits, or changes the state of a region of pages in the virtual address space of the calling process. Memory allocated by this function is automatically initialized to zero.

VirtualAllocEx(int hProcess, Pointer<NativeType> lpAddress, int dwSize, int flAllocationType, int flProtect) → Pointer<NativeType>

Reserves, commits, or changes the state of a region of memory within the virtual address space of a specified process. The function initializes the memory it allocates to zero.

VirtualFree(Pointer<NativeType> lpAddress, int dwSize, int dwFreeType) → int

Releases, decommits, or releases and decommits a region of pages within the virtual address space of the calling process.

VirtualFreeEx(int hProcess, Pointer<NativeType> lpAddress, int dwSize, int dwFreeType) → int

Releases, decommits, or releases and decommits a region of memory within the virtual address space of a specified process.

VirtualLock(Pointer<NativeType> lpAddress, int dwSize) → int

Locks the specified region of the process's virtual address space into physical memory, ensuring that subsequent access to the region will not incur a page fault.

VirtualQuery(Pointer<NativeType> lpAddress, Pointer<MEMORY_BASIC_INFORMATION> lpBuffer, int dwLength) → int

Retrieves information about a range of pages in the virtual address space of the calling process.

VirtualQueryEx(int hProcess, Pointer<NativeType> lpAddress, Pointer<MEMORY_BASIC_INFORMATION> lpBuffer, int dwLength) → int

Retrieves information about a range of pages within the virtual address space of a specified process.

VirtualUnlock(Pointer<NativeType> lpAddress, int dwSize) → int

Unlocks a specified range of pages in the virtual address space of a process, enabling the system to swap the pages out to the paging file if necessary.

WaitCommEvent(int hFile, Pointer<Uint32> lpEvtMask, Pointer<OVERLAPPED> lpOverlapped) → int

Waits for an event to occur for a specified communications device. The set of events that are monitored by this function is contained in the event mask associated with the device handle.

WaitForSingleObject(int hHandle, int dwMilliseconds) → int

Waits until the specified object is in the signaled state or the time-out interval elapses.

WideCharToMultiByte(int CodePage, int dwFlags, Pointer<Utf16> lpWideCharStr, int cchWideChar, Pointer<Utf8> lpMultiByteStr, int cbMultiByte, Pointer<Utf8> lpDefaultChar, Pointer<Int32> lpUsedDefaultChar) → int

Maps a UTF-16 (wide character) string to a new character string. The new character string is not necessarily from a multibyte character set.

Wow64SuspendThread(int hThread) → int

Suspends the specified WOW64 thread.

WriteConsole(int hConsoleOutput, Pointer<NativeType> lpBuffer, int nNumberOfCharsToWrite, Pointer<Uint32> lpNumberOfCharsWritten, Pointer<NativeType> lpReserved) → int

Writes a character string to a console screen buffer beginning at the current cursor location.

WriteFile(int hFile, Pointer<Uint8> lpBuffer, int nNumberOfBytesToWrite, Pointer<Uint32> lpNumberOfBytesWritten, Pointer<OVERLAPPED> lpOverlapped) → int

Writes data to the specified file or input/output (I/O) device.

WriteFileEx(int hFile, Pointer<Uint8> lpBuffer, int nNumberOfBytesToWrite, Pointer<OVERLAPPED> lpOverlapped, Pointer<NativeFunction<LPOVERLAPPED_COMPLETION_ROUTINE>> lpCompletionRoutine) → int

Writes data to the specified file or input/output (I/O) device. It reports its completion status asynchronously, calling the specified completion routine when writing is completed or canceled and the calling thread is in an alertable wait state.

WriteFileGather(int hFile, Pointer<FILE_SEGMENT_ELEMENT> aSegmentArray, int nNumberOfBytesToWrite, Pointer<Uint32> lpReserved, Pointer<OVERLAPPED> lpOverlapped) → int

Retrieves data from an array of buffers and writes the data to a file. The function starts writing data to the file at a position that is specified by an OVERLAPPED structure. The WriteFileGather function operates asynchronously.

WriteProcessMemory(int hProcess, Pointer<NativeType> lpBaseAddress, Pointer<NativeType> lpBuffer, int nSize, Pointer<IntPtr> lpNumberOfBytesWritten) → int

Writes data to an area of memory in a specified process. The entire area to be written to must be accessible or the operation fails.

ZeroMemory(Pointer<NativeType> destination, int length) → void

Fills a block of memory with zeros.