IG_dspl_antialias

IG_dspl_antialias_set

In This Topic

This function sets new anti-alias settings.

Declaration:

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AT_ERRCOUNT ACCUAPI IG_dspl_antialias_set( [IN] HIGEAR hIGear, [IN] DWORD dwGrpID, [IN] AT_MODE nAliasFlags, [IN] INT nThreshold );

Arguments:

Name	Type	Description
hIGear	HIGEAR	ImageGear handle of image.
dwGrpID	DWORD	Identifier of group in which to set option.
nAliasFlags	AT_MODE	New value of AliasMode to set. Possible value is one of the following: IG_DSPL_ANTIALIAS_NONE IG_DSPL_ANTIALIAS_SCALE_TO_GRAY IG_DSPL_ANTIALIAS_PRESERVE_BLACK IG_DSPL_ANTIALIAS_PRESERVE_WHITE with OR combination of one additional flag: IG_DSPL_ANTIALIAS_SUBSAMPLE
nThreshold	INT	Specifies display aliasing threshold level (AliasThreshold). Please see Dithering, Anti-Aliasing, and Palette Handling.

Return Value:

Returns the number of ImageGear errors that occurred during this function call.

Supported Raster Image Formats:

All pixel formats supported by ImageGear for C and C++.

Sample:

MFC, Timing, Filters

Example:

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HIGEAR hIGear; /* HIGEAR handle of image / DWORD nGrpID; / display group identifier / ... / sets scale to gray algorithm with subsampling */ IG_dspl_antialias_set( hIGear, nGrpID, IG_DSPL_ANTIALIAS_SCALE_TO_GRAY\| IG_DSPL_ANTIALIAS_SUBSAMPLE, 50 ); ...

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HIGEAR           hIGear;     /* HIGEAR handle of image  */ 
DWORD           nGrpID;     /* display group identifier */
 ...
/* sets scale to gray algorithm with subsampling  */
IG_dspl_antialias_set( hIGear, nGrpID, IG_DSPL_ANTIALIAS_SCALE_TO_GRAY|
IG_DSPL_ANTIALIAS_SUBSAMPLE, 50 );
 ...

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