References ▼
#include "lttwn.h"
L_LTTWN_API L_INT L_TwainGetImageFrame(hSession, pFrame)
HTWAINSESSION hSession; |
handle to an existing TWAIN session |
pTW_FRAME pFrame; |
pointer to a structure |
Gets the current image frame used to transfer 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. |
pFrame |
Pointer to a structure to be updated with the current image frame. |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
The image frame specifies the size and location of the image to acquire. To set the image frame for the current TWAIN source, call the L_TwainSetImageFrame 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_TwainSetImageFrame.