OpenVxDHandle

DWORD OpenVxDHandle(HANDLE hSource);
 

This function is exported by KERNEL32.DLL for DLLs or applications that have associated VxDs that need to set ring 3 events from ring 0. When a ring 3 event handle is used as the source, the handle returned from this function can be passed to a VxD and used to set the event at ring 0 with the service _VWIN32_SetWin32Event.

The VxD Handle must be closed at ring 0 with _VWIN32_CloseVxDHandle or the object will never get freed. The event can be set from any thread in the system VM at VMM32 event time.

• Returns a DWORD that specifies a VxD handle; otherwise returns 0L if the event handle specified in the hSource parameter is not valid.

hSource

Event handle in the current process to convert to a VxD handle.