// dispmprt.h
LONG DlSetEvent(
PVOID DeviceHandle,
PEVENT pEvent
);
View the official Windows Driver Kit DDI referenceNo description available.
Sets an event object to the signaled state if it was not already in that state, and returns the event object's previous state.
DeviceHandleA handle that represents a display adapter.
pEventA pointer to an event.
This function returns LONG.