DriverProc
Processes driver messages for the installable driver. DriverProc is a driver-supplied function. LONG DriverProc(DWORD dwDriverId, HDRVR hdrvr, UINT msg,LONG lParam1, LONG lParam2);
Parameters dwDriverId Identifier of the installable driver. hdrvr Handle of the installable driver instance. Each instance of the installable driver has a unique handle. msg Driver message value. It can be a custom value or one of these standard values:
| DRV_CLOSE
| Notifies the driver that it should decrement its usage count and unload the
driver if the count is zero.
|
| DRV_CONFIGURE
| Notifies the driver that it should display a configuration dialog box. This
message is sent only if the driver returns a nonzero value when processing the DRV_QUERYCONFIGURE message.
|
| DRV_DISABLE
| Notifies the driver that its allocated memory is about to be freed.
|
| DRV_ENABLE
| Notifies the driver that it has been loaded or reloaded or that Windows has
been enabled.
|
| DRV_FREE
| Notifies the driver that it will be discarded.
|
| DRV_INSTALL
| Notifies the driver that it has been successfully installed.
|
| DRV_LOAD
| Notifies the driver that it has been successfully loaded.
|
| DRV_OPEN
| Notifies the driver that it is about to be opened.
|
| DRV_POWER
| Notifies the driver that the device's power source is about to be turned on or
off.
|
| DRV_QUERYCONFIGURE
| Directs the driver to specify whether it supports the DRV_CONFIGURE message.
|
| DRV_REMOVE
| Notifies the driver that it is about to be removed from the system.
|
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