Help Version 19.0.2017.10.27
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#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). |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
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. |
For an example, refer to L_TwainSetImageUnit.