L_TwainSetImageBitsPerPixel

#include "lttwn.h"

L_LTTWN_API L_INT L_TwainSetImageBitsPerPixel(hSession, nBitsPerPixel)

HTWAINSESSION hSession;

handle to an existing TWAIN session

L_INT nBitsPerPixel;

bits per pixel

Sets the bits per pixel to be used when transferring images from the current TWAIN source.

Parameter

Description

hSession

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

nBitsPerPixel

Number of bits per pixel to set. For more information on possible values, refer to http://www.twain.org/ and click on TWAIN Specification (Version 1.9).

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

This function internally sets the bits per pixel capability ICAP_BITDEPTH. For more information on this capability, refer to http://www.twain.org/ and click on TWAIN Specification (Version 1.9).

To obtain the current bits per pixel value, call the L_TwainGetImageBitsPerPixel function

This function should be called after calling the L_TwainStartCapsNeg function and before calling the L_TwainEndCapsNeg function.

Required DLLs and Libraries

LTTWN

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files to be Included with your Application.

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