DRV_FREE

Notifies the driver that it is being removed from memory. The driver should free any memory and other system resources that it has allocated.

Parameters

hdrvr

Handle of the installable driver instance.

Return Value

No return value.

Remarks

The dwDriverId, lParam1, and lParam2 parameters are not used.

The DRV_FREE message is always the last message that a device driver receives.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in mmsystem.h.