DRV_DISABLE

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.

QuickInfo

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