L_TwainGetImageBitsPerPixel

#include "lttwn.h"

L_LTTWN_API L_INT L_TwainGetImageBitsPerPixel(hSession, pnBitsPerPixel)

HTWAINSESSION hSession;

handle to an existing TWAIN session

L_INT * pnBitsPerPixel;

pointer to the bits per pixel

Gets the current bits per pixel value 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.

pnBitsPerPixel

Pointer to a variable to be updated with the number of bits per pixel. 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 gets the bits per pixel capability ICAP_BITDEPTH. For more information on this capability, refer to www.twain.org/download.htm and click on TWAIN Specification (Version 1.9).

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

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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