magnification topic

Magnification API

The Magnification API enables applications to magnify the entire screen or portions of the screen, and to apply color effects.

Functions

MagGetColorEffect(int hwnd, Pointer<MAGCOLOREFFECT> pEffect) → int

Gets the color transformation matrix for a magnifier control.

MagGetFullscreenColorEffect(Pointer<MAGCOLOREFFECT> pEffect) → int

Retrieves the color transformation matrix associated with the full-screen magnifier.

MagGetFullscreenTransform(Pointer<Float> pMagLevel, Pointer<Int32> pxOffset, Pointer<Int32> pyOffset) → int

Retrieves the magnification settings for the full-screen magnifier.

MagGetImageScalingCallback(int hwnd) → Pointer<NativeFunction<MagImageScalingCallback>>

Retrieves the registered callback function that implements a custom transform for image scaling.

MagGetInputTransform(Pointer<Int32> pfEnabled, Pointer<RECT> pRectSource, Pointer<RECT> pRectDest) → int

Retrieves the current input transformation for pen and touch input, represented as a source rectangle and a destination rectangle.

MagGetWindowFilterList(int hwnd, Pointer<Uint32> pdwFilterMode, int count, Pointer<IntPtr> pHWND) → int

Retrieves the list of windows that are magnified or excluded from magnification.

MagGetWindowSource(int hwnd, Pointer<RECT> pRect) → int

Gets the rectangle of the area that is being magnified.

MagGetWindowTransform(int hwnd, Pointer<MAGTRANSFORM> pTransform) → int

Retrieves the transformation matrix associated with a magnifier control.

MagInitialize() → int

Creates and initializes the magnifier run-time objects.

MagSetColorEffect(int hwnd, Pointer<MAGCOLOREFFECT> pEffect) → int

Sets the color transformation matrix for a magnifier control.

MagSetFullscreenColorEffect(Pointer<MAGCOLOREFFECT> pEffect) → int

Changes the color transformation matrix associated with the full-screen magnifier.

MagSetFullscreenTransform(double magLevel, int xOffset, int yOffset) → int

Changes the magnification settings for the full-screen magnifier.

MagSetImageScalingCallback(int hwnd, Pointer<NativeFunction<MagImageScalingCallback>> callback) → int

Sets the callback function for external image filtering and scaling.

MagSetInputTransform(int fEnabled, Pointer<RECT> pRectSource, Pointer<RECT> pRectDest) → int

Sets the current active input transformation for pen and touch input, represented as a source rectangle and a destination rectangle.

MagSetWindowFilterList(int hwnd, int dwFilterMode, int count, Pointer<IntPtr> pHWND) → int

Sets the list of windows to be magnified or the list of windows to be excluded from magnification.

MagSetWindowSource(int hwnd, RECT rect) → int

Sets the source rectangle for the magnification window.

MagSetWindowTransform(int hwnd, Pointer<MAGTRANSFORM> pTransform) → int

Sets the transformation matrix for a magnifier control.

MagShowSystemCursor(int fShowCursor) → int

Shows or hides the system cursor.

MagUninitialize() → int

Destroys the magnifier run-time objects.