IDWriteTextAnalysisSink1::SetGlyphOrientation method (dwrite_1.h)

The text analyzer calls back to this to report the actual orientation of each character for shaping and drawing.

Syntax

HRESULT SetGlyphOrientation(
  UINT32                         textPosition,
  UINT32                         textLength,
  DWRITE_GLYPH_ORIENTATION_ANGLE glyphOrientationAngle,
  UINT8                          adjustedBidiLevel,
  BOOL                           isSideways,
  BOOL                           isRightToLeft
);

Parameters

textPosition

Type: UINT32

The starting position to report from.

textLength

Type: UINT32

Number of UTF-16 units of the reported range.

glyphOrientationAngle

Type: DWRITE_GLYPH_ORIENTATION_ANGLE

A DWRITE_GLYPH_ORIENTATION_ANGLE-typed value that specifies the angle of the glyphs within the text range (pass to IDWriteTextAnalyzer1::GetGlyphOrientationTransform to get the world relative transform).

adjustedBidiLevel

Type: UINT8

The adjusted bidi level to be used by the client layout for reordering runs. This will differ from the resolved bidi level retrieved from the source for cases such as Arabic stacked top-to-bottom, where the glyphs are still shaped as RTL, but the runs are TTB along with any CJK or Latin.

isSideways

Type: BOOL

Whether the glyphs are rotated on their side, which is the default case for CJK and the case stacked Latin

isRightToLeft

Type: BOOL

Whether the script should be shaped as right-to-left. For Arabic stacked top-to-bottom, even when the adjusted bidi level is coerced to an even level, this will still be true.

Return value

Type: HRESULT

Returns a successful code or an error code to abort analysis.

Requirements

See also

IDWriteTextAnalysisSink1