Deviceevenetcallback not being called

twain / twain-cs

A C# interface for TWAIN

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Deviceevenetcallback not being called #43

Open Superiorx52 opened 4 years ago

Superiorx52 commented 4 years ago

IsMsgDeviceEvent never returns true

mattzirkle commented 4 years ago

I have tested a lot of devices, and it didn't seem like any of them supported device events. Did you check the capability to make sure your device supports the events? If so, did you negotiate the capability to register the event handler? There are sections in the specification that explain what to check.