DRV_DISABLE message

Disables the driver. The driver should place the corresponding device, if any, in an inactive state and terminate any callback functions or threads.

Parameters

hdrvr

Handle of the installable driver instance.

Return Value

No return value.

Remarks

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

After disabling the driver, the system typically sends the driver a DRV_FREE message before removing the driver from memory.

Requirements

Requirement	Value
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