Help Version 19.0.2017.10.27
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#include "lttwn.h"
L_LTTWN_API L_INT L_TwainSetAcquirePageOptions(hSession, nPaperSize, nPaperDirection)
HTWAINSESSION hSession; |
handle to an existing TWAIN session |
L_INT nPaperSize; |
paper size |
L_INT nPaperDirection; |
page orientation |
Sets the page size and orientation to be used when transferring data 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. |
nPaperSize |
The page size to set. For more information on possible values, refer to http://www.twain.org/ and click on TWAIN Specification (Version 1.9). |
nPaperDirection |
The page orientation 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 page size capability ICAP_SUPPORTEDSIZES, and the page orientation capability ICAP_ORIENTATION. For more information on these capabilities, refer to http://www.twain.org/ and click on TWAIN Specification (Version 1.9).
To get the current values of these capabilities, call the L_TwainGetAcquirePageOptions 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_TwainGetImageEffects.