L_TwainSetDeviceEventCapability

#include "lttwn.h"

L_LTTWN_API L_INT L_TwainSetDeviceEventCapability (hSession, pDeviceCap)

Sets the device event capability (CAP_DEVICEEVENT) values for the current TWAIN session.

Parameters

HTWAINSESSION hSession

Handle to an existing TWAIN session. This handle is obtained by calling the L_TwainInitSession or L_TwainInitSession2 function.

pTW_CAPABILITY 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.

Returns

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

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

Help Version 21.0.2021.4.7
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