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DWRITE_RENDERING_MODE enumeration (dwrite.h)

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Represents a method of rendering glyphs.

Note  This topic is about DWRITE_RENDERING_MODE in Windows 8 and later. For info on the previous version see the Remarks section.
 

Syntax

typedef enum DWRITE_RENDERING_MODE {
  DWRITE_RENDERING_MODE_DEFAULT,
  DWRITE_RENDERING_MODE_ALIASED,
  DWRITE_RENDERING_MODE_GDI_CLASSIC,
  DWRITE_RENDERING_MODE_GDI_NATURAL,
  DWRITE_RENDERING_MODE_NATURAL,
  DWRITE_RENDERING_MODE_NATURAL_SYMMETRIC,
  DWRITE_RENDERING_MODE_OUTLINE,
  DWRITE_RENDERING_MODE_CLEARTYPE_GDI_CLASSIC,
  DWRITE_RENDERING_MODE_CLEARTYPE_GDI_NATURAL,
  DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL,
  DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL_SYMMETRIC
} ;

Constants

 
DWRITE_RENDERING_MODE_DEFAULT
Specifies that the rendering mode is determined automatically, based on the font and size.
DWRITE_RENDERING_MODE_ALIASED
Specifies that no anti-aliasing is performed. Each pixel is either set to the foreground color of the text or retains the color of the background.
DWRITE_RENDERING_MODE_GDI_CLASSIC
Specifies that antialiasing is performed in the horizontal direction and the appearance of glyphs is layout-compatible with GDI using CLEARTYPE_QUALITY.
Use DWRITE_MEASURING_MODE_GDI_CLASSIC to get glyph advances. The antialiasing may be either ClearType or grayscale depending on the text antialiasing mode.
DWRITE_RENDERING_MODE_GDI_NATURAL
Specifies that antialiasing is performed in the horizontal direction and the appearance of glyphs is layout-compatible with GDI using CLEARTYPE_NATURAL_QUALITY.
Glyph advances are close to the font design advances, but are still rounded to whole pixels. Use DWRITE_MEASURING_MODE_GDI_NATURAL to get glyph advances.
The antialiasing may be either ClearType or grayscale depending on the text antialiasing mode.
DWRITE_RENDERING_MODE_NATURAL
Specifies that antialiasing is performed in the horizontal direction. This rendering mode allows glyphs to be positioned with subpixel precision and
is therefore suitable
for natural (i.e., resolution-independent) layout. The antialiasing may be either ClearType or grayscale depending on the text antialiasing mode.
DWRITE_RENDERING_MODE_NATURAL_SYMMETRIC
Similar to natural mode except that antialiasing is performed in both the horizontal and vertical directions.
This is typically used at larger sizes to make curves and diagonal lines look smoother. The antialiasing may be either ClearType or grayscale depending
on the text antialiasing mode.
DWRITE_RENDERING_MODE_OUTLINE
Specifies that rendering should bypass the rasterizer and use the outlines directly. This is typically used at very large sizes.
DWRITE_RENDERING_MODE_CLEARTYPE_GDI_CLASSIC
DWRITE_RENDERING_MODE_CLEARTYPE_GDI_NATURAL
DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL
DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL_SYMMETRIC

Remarks

DWRITE_RENDERING_MODE previous to Windows 8

enum DWRITE_RENDERING_MODE {
  DWRITE_RENDERING_MODE_DEFAULT, 
  DWRITE_RENDERING_MODE_ALIASED, 
  DWRITE_RENDERING_MODE_CLEARTYPE_GDI_CLASSIC, 
  DWRITE_RENDERING_MODE_CLEARTYPE_GDI_NATURAL, 
  DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL, 
  DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL_SYMMETRIC, 
  DWRITE_RENDERING_MODE_OUTLINE 

};

Requirements

Requirement Value
Minimum supported client Windows 8 and Platform Update for Windows 7 [desktop apps | UWP apps]
Minimum supported server Windows Server 2012 and Platform Update for Windows Server 2008 R2 [desktop apps | UWP apps]
Header dwrite.h