callback topic

Callbacks

Callbacks used in the Win32 API.

Typedefs

BFFCALLBACK = Int32 Function(Pointer<NativeType> hwnd, Uint32 uMsg, IntPtr lParam, IntPtr lpData)

Receives event notifications from the Active Directory Domain Services container browser dialog box.

DLGPROC = IntPtr Function(Pointer<NativeType> param0, Uint32 param1, IntPtr param2, IntPtr param3)

An application-defined callback function used with the CreateDialog and DialogBox families of functions.

DRAWSTATEPROC = Int32 Function(Pointer<NativeType> hdc, IntPtr lData, IntPtr wData, Int32 cx, Int32 cy)

An application-defined callback function that renders a complex image for the DrawState function.

DTT_CALLBACK_PROC = Int32 Function(Pointer<NativeType> hdc, Pointer<Utf16> pszText, Int32 cchText, Pointer<RECT> prc, Uint32 dwFlags, IntPtr lParam)

ENUMRESNAMEPROC = Int32 Function(Pointer<NativeType> hModule, Pointer<Utf16> lpType, Pointer<Utf16> lpName, IntPtr lParam)

An application-defined callback function used with the EnumResourceNames and EnumResourceNamesEx functions.

ENUMRESTYPEPROC = Int32 Function(Pointer<NativeType> hModule, Pointer<Utf16> lpType, IntPtr lParam)

An application-defined callback function used with the EnumResourceTypes and EnumResourceTypesEx functions.

FARPROC = Pointer<NativeType>

FONTENUMPROC = Int32 Function(Pointer<LOGFONT> param0, Pointer<TEXTMETRIC> param1, Uint32 param2, IntPtr param3)

An application defined callback function used with the EnumFontFamilies function.

GRAYSTRINGPROC = Int32 Function(Pointer<NativeType> param0, IntPtr param1, Int32 param2)

An application-defined callback function used with the GrayString function.

HOOKPROC = IntPtr Function(Int32 code, IntPtr wParam, IntPtr lParam)

An application-defined or library-defined callback function used with the SetWindowsHookEx function.

LPCCHOOKPROC = IntPtr Function(Pointer<NativeType> param0, Uint32 param1, IntPtr param2, IntPtr param3)

Receives messages or notifications intended for the default dialog box procedure of the Color dialog box.

LPCFHOOKPROC = IntPtr Function(Pointer<NativeType> param0, Uint32 param1, IntPtr param2, IntPtr param3)

Receives messages or notifications intended for the default dialog box procedure of the Font dialog box.

LPEXCEPFINO_DEFERRED_FILLIN = Int32 Function(Pointer<EXCEPINFO> pExcepInfo)

LPFRHOOKPROC = IntPtr Function(Pointer<NativeType> param0, Uint32 param1, IntPtr param2, IntPtr param3)

Receives messages or notifications intended for the default dialog box procedure of the Find or Replace dialog box.

LPHANDLER_FUNCTION = Void Function(Uint32 dwControl)

An application-defined callback function used with the RegisterServiceCtrlHandler function.

LPHANDLER_FUNCTION_EX = Uint32 Function(Uint32 dwControl, Uint32 dwEventType, Pointer<NativeType> lpEventData, Pointer<NativeType> lpContext)

An application-defined callback function used with the RegisterServiceCtrlHandlerEx function.

LPOCNCHKPROC = Int32 Function(IntPtr param0, IntPtr param1, Pointer<NativeType> param2)

LPOCNCONNPROC = IntPtr Function(IntPtr param0, Pointer<Utf16> param1, Pointer<Utf16> param2, Pointer<NativeType> param3)

LPOCNDSCPROC = Void Function(IntPtr param0, IntPtr param1, Pointer<NativeType> param2)

LPOFNHOOKPROC = IntPtr Function(Pointer<NativeType> param0, Uint32 param1, IntPtr param2, IntPtr param3)

Receives notification messages sent from the dialog box.

LPOVERLAPPED_COMPLETION_ROUTINE = Void Function(Uint32 dwErrorCode, Uint32 dwNumberOfBytesTransfered, Pointer<OVERLAPPED> lpOverlapped)

An application-defined callback function used with the ReadFileEx and WriteFileEx functions.

LPPROGRESS_ROUTINE = Uint32 Function(Int64 totalFileSize, Int64 totalBytesTransferred, Int64 streamSize, Int64 streamBytesTransferred, Uint32 dwStreamNumber, Uint32 dwCallbackReason, Pointer<NativeType> hSourceFile, Pointer<NativeType> hDestinationFile, Pointer<NativeType> lpData)

An application-defined callback function used with the CopyFileEx, MoveFileTransacted, and MoveFileWithProgress functions.

LPSERVICE_MAIN_FUNCTION = Void Function(Uint32 dwNumServicesArgs, Pointer<Pointer<Utf16>> lpServiceArgVectors)

The entry point for a service.

LPTHREAD_START_ROUTINE = Uint32 Function(Pointer<NativeType> lpThreadParameter)

An application-defined function that serves as the starting address for a thread.

MagImageScalingCallback = Int32 Function(Pointer<NativeType> hwnd, Pointer<NativeType> srcdata, MAGIMAGEHEADER srcheader, Pointer<NativeType> destdata, MAGIMAGEHEADER destheader, RECT unclipped, RECT clipped, Pointer<NativeType> dirty)

Prototype for a callback function that implements a custom transform for image scaling.

MIDIINPROC = Void Function(HMIDIIN hMidiIn, UINT wMsg, DWORD_PTR dwInstance, DWORD_PTR dwParam1, DWORD_PTR dwParam2)

An application-defined callback function for handling incoming MIDI messages.

MIDIOUTPROC = Void Function(HMIDIOUT hmo, UINT wMsg, DWORD_PTR dwInstance, DWORD_PTR dwParam1, DWORD_PTR dwParam2)

An application-defined callback function for handling outgoing MIDI messages.

MONITORENUMPROC = Int32 Function(Pointer<NativeType> param0, Pointer<NativeType> param1, Pointer<RECT> param2, IntPtr param3)

An application-defined callback function that is called by the EnumDisplayMonitors function.

NEARPROC = Pointer<NativeType>

PENUM_PAGE_FILE_CALLBACK = Int32 Function(Pointer<NativeType> pContext, Pointer<ENUM_PAGE_FILE_INFORMATION> pPageFileInfo, Pointer<Utf16> lpFilename)

An application-defined callback function used with the EnumPageFiles function.

PFN_AUTHENTICATION_CALLBACK_EX = Int32 Function(Pointer<NativeType> pvParam, Pointer<BLUETOOTH_AUTHENTICATION_CALLBACK_PARAMS> pAuthCallbackParams)

An application-defined callback function used in conjunction with the BluetoothRegisterForAuthenticationEx function.

PFN_BLUETOOTH_ENUM_ATTRIBUTES_CALLBACK = Int32 Function(Uint32 uAttribId, Pointer<Uint8> pValueStream, Uint32 cbStreamSize, Pointer<NativeType> pvParam)

An application-defined callback function that is called once for each attribute found in the pSDPStream parameter passed to the BluetoothSdpEnumAttributes function call.

PFN_DEVICE_CALLBACK = Int32 Function(Pointer<NativeType> pvParam, Pointer<BLUETOOTH_DEVICE_INFO> pDevice)

An application-defined callback function used in association with selecting Bluetooth devices.

PFN_SC_NOTIFY_CALLBACK = Void Function(Pointer<NativeType> pParameter)

PFNBLUETOOTH_GATT_EVENT_CALLBACK = Void Function(Int32 eventType, Pointer<NativeType> eventOutParameter, Pointer<NativeType> context)

Profile drivers implement a Bluetooth GATT event callback to be called whenever the value of a specific characteristic changes.

PFTASKDIALOGCALLBACK = Int32 Function(Pointer<NativeType> hwnd, Uint32 msg, IntPtr wParam, IntPtr lParam, IntPtr lpRefData)

An application-defined function used with the TaskDialogIndirect function.

PHANDLER_ROUTINE = Int32 Function(Uint32 ctrlType)

An application-defined function used with the SetConsoleCtrlHandler function.

PROC = Pointer<NativeType>

PSYM_ENUMERATESYMBOLS_CALLBACK = Int32 Function(Pointer<SYMBOL_INFO> pSymInfo, Uint32 symbolSize, Pointer<NativeType> userContext)

Used with the SymEnumSymbols, SymEnumTypes, and SymEnumTypesByName functions.

SENDASYNCPROC = Void Function(Pointer<NativeType> param0, Uint32 param1, IntPtr param2, IntPtr param3)

An application-defined callback function used with the SendMessageCallback function.

SPNOTIFYCALLBACK = Void Function(IntPtr wParam, IntPtr lParam)

SUBCLASSPROC = IntPtr Function(Pointer<NativeType> hWnd, Uint32 uMsg, IntPtr wParam, IntPtr lParam, IntPtr uIdSubclass, IntPtr dwRefData)

Defines the prototype for the callback function used by RemoveWindowSubclass and SetWindowSubclass.

TIMERPROC = Void Function(Pointer<NativeType> param0, Uint32 param1, IntPtr param2, Uint32 param3)

An application-defined callback function that processes WM_TIMER messages.

WLAN_NOTIFICATION_CALLBACK = Void Function(Pointer<L2_NOTIFICATION_DATA> param0, Pointer<NativeType> param1)

Defines the type of notification callback function.

WNDENUMPROC = Int32 Function(Pointer<NativeType> param0, IntPtr param1)

An application-defined callback function used with the EnumWindows or EnumDesktopWindows function.

WNDPROC = IntPtr Function(Pointer<NativeType> param0, Uint32 param1, IntPtr param2, IntPtr param3)

An application-defined callback function that processes messages sent to a window.