DRV_POWER message
Notifies the driver that power to the device is being turned on or off.
Parameters
-
dwDriverId
-
Identifier of the installable driver. This is the same value previously returned by the driver from the DRV_OPEN message.
-
hdrvr
-
Handle of the installable driver instance.
Return Value
Returns nonzero if successful or zero otherwise.
Remarks
The lParam1 and lParam2 parameters are not used.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|