L_TwainSetDeviceEventCapability

Summary

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

Syntax

L_LTTWN_API L_INT L_TwainSetDeviceEventCapability (hSession, pDeviceCap)

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

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

• 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.

See Also

Functions

• L_TwainStartCapsNeg
• L_TwainSetDeviceEventCallback
• L_TwainGetDeviceEventData
• L_TwainGetDeviceEventCapability
• L_TwainResetDeviceEventCapability
• LTWAINDEVICEEVENTCALLBACK

Topics

• Getting and Setting Capabilities
• TWAIN Functionality: Capability Functions

Example

For an example, refer to L_TwainGetDeviceEventCapability.