LTwain::SetJPEGCompression

#include "ltwrappr.h"

L_INT LTwain::SetJPEGCompression (pTwJpegComp, uFlag);

Sets or restores JPEG compression options for the specified TWAIN session.

Parameters

pTW_JPEGCOMPRESSION pTwJpegComp

Pointer to a TW_JPEGCOMPRESSION structure that contains the JPEG compression options to set.

L_UINT uFlag

Flag that indicates whether to set new or restore default JPEG compression options. Possible values are:

Value Meaning
LTWAIN_SET_JPEG_COMPRESSION [0x0001] Set new JPEG compression options.
LTWAIN_RESET_JPEG_COMPRESSION [0x0002] Restore default JPEG compression options.

Returns

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

Depending upon the flag used, this function will either set JPEG compression options for the specified TWAIN session, or restore the default JPEG compression options for the specified TWAIN session.

For more information about TW_JPEGCOMPRESSION, refer to the TWAIN specification.

Required DLLs and Libraries

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