IDWriteFontFace::GetGdiCompatibleMetrics method

Obtains design units and common metrics for the font face. These metrics are applicable to all the glyphs within a fontface and are used by applications for layout calculations.

Syntax

virtual HRESULT GetGdiCompatibleMetrics(
                       FLOAT               emSize,
                       FLOAT               pixelsPerDip,
  [in, optional] const DWRITE_MATRIX       *transform,
  [out]                DWRITE_FONT_METRICS *fontFaceMetrics
) = 0;

Parameters

emSize

Type: FLOAT

The logical size of the font in DIP units.

pixelsPerDip

Type: FLOAT

The number of physical pixels per DIP.

transform [in, optional]

Type: const DWRITE_MATRIX*

An optional transform applied to the glyphs and their positions. This transform is applied after the scaling specified by the font size and pixelsPerDip.

fontFaceMetrics [out]

Type: DWRITE_FONT_METRICS*

A pointer to a DWRITE_FONT_METRICS structure to fill in. The metrics returned by this function are in font design units.

Return value

Type: HRESULT

Standard HRESULT error code.

Requirements

See also

IDWriteFontFace

IDWriteFontFace