The name 'WM_DEVICECHANGE' does not exist in the current context

Question

I am trying to detect a usb arrival event . I tried to override wndproc() for getting my messages. But I am facing an error by windows messages.

The error

Answer 1

You have to declare and define the values of the constants:

private const int DBT_DEVICEARRIVAL = 0x8000;
private const int WM_DEVICECHANGE = 0x0219;