Help Version 19.0.2017.10.27
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#include "lttwn.h"
L_LTTWN_API L_INT L_TwainSetDeviceEventCapability (hSession, pDeviceCap)
HTWAINSESSION hSession; |
handle to an existing TWAIN session |
pTW_CAPABILITY pDeviceCap; |
pointer to a structure |
Sets the device event capability (CAP_DEVICEEVENT) values for the current TWAIN session.
Parameter |
Description |
hSession |
Handle to an existing TWAIN session. This handle is obtained by calling the L_TwainInitSession or L_TwainInitSession2 function. |
pDeviceCap |
Pointer to the TW_CAPABILITY structure that references the capability value to set. This structure must be allocated and filled with data corresponding to the required capability before passing it to the function. |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
This function should be called after calling L_TwainStartCapsNeg function and before calling L_TwainEndCapsNeg function.
To get the CAP_DEVICEEVENT capability values, call L_TwainGetDeviceEventCapability function.
To reset the CAP_DEVICEEVENT capability values to the default values, call L_TwainResetDeviceEventCapability 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. |
Functions: |
L_TwainStartCapsNeg, L_TwainSetDeviceEventCallback, L_TwainGetDeviceEventData, L_TwainGetDeviceEventCapability, L_TwainResetDeviceEventCapability, LTWAINDEVICEEVENTCALLBACK |
Topics: |
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For an example, refer to L_TwainGetDeviceEventCapability.