Help Version 19.0.2017.10.27
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#include "lttwn.h"
L_LTTWN_API L_INT L_TwainGetAcquirePageOptions(hSession, pnPaperSize, pnPaperDirection)
HTWAINSESSION hSession; |
handle to an existing TWAIN session |
L_INT * pnPaperSize; |
pointer to a variable |
L_INT * pnPaperDirection; |
pointer to a variable |
Gets the current page size, and page orientation values 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. |
pnPaperSize |
Pointer to a variable to be updated with the page size. For more information on possible values, refer to www.twain.org and click on TWAIN Specification (Version 2.0). |
pnPaperDirection |
Pointer to a variable to be updated with the page direction. For more information on possible values, refer to www.twain.org and click on TWAIN Specification (Version 2.0). |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
This function gets the current page size capability ICAP_SUPPORTEDSIZES, and page orientation capability ICAP_ORIENTATION values. For more information on these capabilities, refer to www.twain.org and click on TWAIN Specification (Version 2.0).
To set these capabilities, call the L_TwainSetAcquirePageOptions 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.