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DTWAIN_GetCompressionType |
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The DTWAIN_GetCompressionType function gets the compression method used when a buffered image transfer is done.
DTWAIN_BOOL DTWAIN_GetCompressionType (
Parameters Source An open TWAIN Source.
lpCompression Address of a LONG variable that will receive the compression type.
bGetCurrent Indicates whether to get the current or default compression type.
Return Values The return value is TRUE if successful. Otherwise FALSE is returned.
Comments The DTWAIN_GetCompressionType function gets the Source Source current or default compression setting. The compression setting is used when a call to DTWAIN_AcquireBuffered is invoked. The address lpCompression is used to store the compression value.
If bGetCurrent is TRUE, the current value used by the Source will be stored at the address lpCompression, otherwise the default value is stored at lpCompression. See DTWAIN Compression Constants for a list of the various compression modes. To get a list of all of the supported compression type, call DTWAIN_EnumCompressionTypes function,
TWAIN State Transitions The Source must be in State 4 or higher
Prerequisite Function Call(s)
DTWAIN Source Selection Function
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