This callback, if registered, will be called by ImageGear when a device event occurs.
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typedef LONG (LPACCUAPI LPFNIG_TWAIN_DEVICE_EVENT)(
LPAT_TWAIN_DEVICEEVENT lpEvent,
LPVOID lpData
);
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| Name | Type | Description |
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| lpEvent | LPAT_TWAIN_DEVICEEVENT | Provides information about the Event that was raised by the Data Source. |
| lpData | LPVOID | A far pointer to private data, as specified in your call to IG_TWAIN_CB_register() function. |
Set the return value to 0 to return control to ImageGear.
This function does not process image pixels.