Gets the current bits per pixel value used when transferring images from the current TWAIN source.
L_LTTWN_API L_INT L_TwainGetImageBitsPerPixel(hSession, pnBitsPerPixel)
Handle to an existing TWAIN session. This handle is obtained by calling the L_TwainInitSession or L_TwainInitSession2 function.
Pointer to a variable to be updated with the number of bits per pixel. For more information on possible values, refer to the TWAIN specification.
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
This function gets the bits per pixel capability ICAP_BITDEPTH. For more information on this capability, refer to the TWAIN specification.
To set the bits per pixel capability, call the L_TwainSetImageBitsPerPixel function.
This function should be called after calling the L_TwainStartCapsNeg function and before calling the L_TwainEndCapsNeg function.
For an example, refer to L_TwainSetImageUnit.
Direct Show .NET | C API | Filters
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