Description
Sets the compression methods to use when storing color or greyscale JPEG images. The actual compression method used on each page will depend on any color reduction method chosen through the SetSaveOptions method. Other output options used, such as SetFaxImageOptions may override any settings chosen here.
To set only a single compression option use the SetProperty call with the appropriate arguments. See the Remarks below for a list of arguments.
Syntax
expression.SetJPEGCompressionOptions(Color, Greyscale)
where expression is an IPNSession object.
Parameters
pnColorCompressionMethod Color
A pnColorCompressionMethod constant for the compression method to use for color images. Not all of the constants are valid for this method, only pnColorCompressionJPEGHighQuality, pnColorCompressionJPEGMediumHighQuality, pnColorCompressionJPEGMediumQuality, pnColorCompressionJPEGMediumLowQuality, and pnColorCompressionJPEGLowQuality apply. If an invalid constant is passed the default compression of pnColorCompressionJPEGMediumQuality is used.
pnGreyscaleCompressionMethod Greyscale
A pnGreyscaleCompressionMethod constant for the compression method to use for greyscale images. Not all of the constants are valid for this method, only pnGreyscaleCompressionJPEGHighQuality, pnGreyscaleCompressionJPEGMediumHighQuality, pnGreyscaleCompressionJPEGMediumQuality, pnGreyscaleCompressionJPEGMediumLowQuality, and pnGreyscaleCompressionJPEGLowQuality apply. If an invalid constant is passed the default compression of pnGreyscaleCompressionJPEGMediumQuality is used.
Remarks
Use the following to set these options using SetProperty:
Method Parameter |
SetProperty Parameters |
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|---|---|---|---|---|---|---|---|
Color |
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Greyscale |
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Supported Printers: Raster Image Printer
See Also: SetProperty pnColorColorCompressionMethod pnGreyscaleCompressionMethod
