L_TwainGetImageBitsPerPixel

#include "lttwn.h"

L_LTTWN_API L_INT L_TwainGetImageBitsPerPixel(hSession, pnBitsPerPixel)

Gets the current bits per pixel value used when transferring images from the current TWAIN source.

Parameters

HTWAINSESSION hSession

Handle to an existing TWAIN session. This handle is obtained by calling the L_TwainInitSession or L_TwainInitSession2 function.

L_INT * pnBitsPerPixel

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.

Returns

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

Comments

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.

Required DLLs and Libraries

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