Platform SDK: Win32 API |
Notifies the system that an asynchronous operation in a virtual device driver is complete. The VxD calls this service after the asynchronous input and output (I/O) operation to signal the application.
mov ebx, Internal ; see below VxDCall VWIN32_DIOCCompletionRoutine
No return value.
Before calling this service, the VxD must set the InternalHigh member of the OVERLAPPED structure to the number of bytes of return data.