windows_screen_guard 0.1.2

Prevent screen capture, recording, and PrintScreen on Flutter Windows apps using the Windows display affinity API — the same method used by Netflix and banking apps.

0.1.2

• Drop win32 dependency — rewritten with raw Dart FFI against user32.dll and kernel32.dll directly. Eliminates the win32 version constraint that was blocking the pub points downgrade test.
• Replace WNDENUMPROC typedef alias with an explicit Int32 Function(IntPtr, IntPtr) native type — compatible with all ffi versions from ^2.1.0.
• Resolves 0/20 pub points on "Compatible with dependency constraint lower bounds".

0.1.1

• Fix critical FFI bug: EnumWindows callback was a closure — moved to a top-level function as required by Dart FFI.
• Fix: user32.dll was opened at module init on all platforms — now lazy-initialised, never touched on non-Windows.
• Fix: isPrintScreenBlocked now correctly returns false on non-Windows platforms.
• Rewrite README with professional structure, standardized API docs, and coverage table.
• Remove placeholder GIFs.

0.1.0

• Initial release.
• WindowsScreenGuard.protect() — blocks all screen capture via SetWindowDisplayAffinity (WDA_MONITOR).
• WindowsScreenGuard.unprotect() — removes display affinity protection.
• WindowsScreenGuard.blockPrintScreen() — installs a low-level keyboard hook to swallow VK_SNAPSHOT.
• WindowsScreenGuard.unblockPrintScreen() — removes the keyboard hook.
• WindowsScreenGuard.isPrintScreenBlocked — query hook state.
• ScreenGuardResult — carries success flag and Win32 error code on failure.
• All methods are no-ops on non-Windows platforms.