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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

 

 

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