IDWriteTextRenderer1：:D rawUnderline 方法 （dwrite_2.h）

語法

HRESULT DrawUnderline(
  void                           *clientDrawingContext,
  FLOAT                          baselineOriginX,
  FLOAT                          baselineOriginY,
  DWRITE_GLYPH_ORIENTATION_ANGLE orientationAngle,
  DWRITE_UNDERLINE const         *underline,
  IUnknown                       *clientDrawingEffect
);

參數

clientDrawingContext

baselineOriginX

baselineOriginY

orientationAngle

underline

clientDrawingEffect

需求