DTWAIN_GetCompressionTypeEx

The DTWAIN_GetCompressionTypeEx function gets the compression method used when a buffered image transfer is done.

LONG DTWAIN_GetCompressionTypeEx (

DTWAIN_SOURCE	Source,
DTWAIN_BOOL	bGetCurrent );

Parameters

Source

An open TWAIN Source.

bGetCurrent

Indicates whether to get the current or default compression type.

Return Values

If successsful, the current compression method used is returned. On failure, -1 is returned If the function returns -1, call DTWAIN_GetLastError() to get extended information.

Comments

The DTWAIN_GetCompressionTypeEx function performs the same functionality as DTWAIN_GetCompressionType, with the difference being that the compression type is returned as a LONG instead of the user providing a pointer to a LONG as a parameter.

TWAIN State Transitions

The Source must be in State 4 or higher

Prerequisite Function Call(s)

DTWAIN_SysInitialize

DTWAIN Source Selection Function