Retrieves the instance handle of the module that contains the installable driver.
HMODULE GetDriverModuleHandle(HDRVR hdrvr);
Returns an instance handle of the driver module if successful or NULL otherwise.
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in mmsystem.h.
Import Library: Use winmm.lib.