DBT_DEVICETYPESPECIFIC  KMVJ6H 

The operating system sends the DBT_DEVICETYPESPECIFIC device message when a device-specific event occurs.

To send the DBT_DEVICETYPESPECIFIC device message, the operating system sends the WM_DEVICECHANGE19GL49. message with wParam set to DBT_DEVICETYPESPECIFIC and lParam set as described in the following.

dwData = (DWORD) lParam;
 

Parameters

dwData

Address of a DEV_BROADCAST_HDR structure identifying the device. lParam is application-defined. May be zero.

Return Values

Return TRUE.

See Also