DRV_FREE message

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.

Requirements

Minimum supported client
Windows 2000 Professional [desktop apps only]
Minimum supported server
Windows 2000 Server [desktop apps only]
Header
Mmsystem.h (include Windows.h)

See also

Installable Drivers

Installable Driver Messages