IDWritePixelSnapping

<summary> The IDWritePixelSnapping interface defines the pixel snapping properties of a text renderer. </summary>

interface IDWritePixelSnapping : IUnknown {

HRESULT IsPixelSnappingDisabled(void* clientDrawingContext, BOOL* isDisabled);

HRESULT GetCurrentTransform(void* clientDrawingContext, DWRITE_MATRIX* transform);

HRESULT GetPixelsPerDip(void* clientDrawingContext, FLOAT* pixelsPerDip);

}

Members

Functions

GetCurrentTransform HRESULT GetCurrentTransform(void* clientDrawingContext, DWRITE_MATRIX* transform): <summary> Gets the current transform that maps abstract coordinates to DIPs, which may disable pixel snapping upon any rotation or shear. </summary> <param name="clientDrawingContext">The context passed to IDWriteTextLayout::Draw.</param> <param name="transform">Receives the transform.</param> <returns> Standard HRESULT error code. </returns>
GetPixelsPerDip HRESULT GetPixelsPerDip(void* clientDrawingContext, FLOAT* pixelsPerDip): <summary> Gets the number of physical pixels per DIP. A DIP (device-independent pixel) is 1/96 inch, so the pixelsPerDip value is the number of logical pixels per inch divided by 96 (yielding a value of 1 for 96 DPI and 1.25 for 120). </summary> <param name="clientDrawingContext">The context passed to IDWriteTextLayout::Draw.</param> <param name="pixelsPerDip">Receives the number of physical pixels per DIP.</param> <returns> Standard HRESULT error code. </returns>
IsPixelSnappingDisabled HRESULT IsPixelSnappingDisabled(void* clientDrawingContext, BOOL* isDisabled): <summary> Determines whether pixel snapping is disabled. The recommended default is FALSE, unless doing animation that requires subpixel vertical placement. </summary> <param name="clientDrawingContext">The context passed to IDWriteTextLayout::Draw.</param> <param name="isDisabled">Receives TRUE if pixel snapping is disabled or FALSE if it not.</param> <returns> Standard HRESULT error code. </returns>

IDWritePixelSnapping

Members

Functions

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