SendDriverMessage
Sends the specified message to the installable driver.
LRESULT SendDriverMessage(HDRVR hdrvr, UINT msg, LONG lParam1,
LONG lParam2);
Parameters
hdrvr
Handle of the installable driver instance. The handle must been previously created by using the OpenDriver function.
msg
Driver message value. It can be a custom message value or one of these standard message values:
| DRV_QUERYCONFIGURE | Queries an installable driver about whether it supports the DRV_CONFIGURE message and can display a configuration dialog box. |
| DRV_CONFIGURE | Notifies an installable driver that it should display a configuration dialog box. (This message should only be sent if the driver returns a nonzero value when the DRV_QUERYCONFIGURE message is processed.) |
| DRV_INSTALL | Notifies an installable driver that it has been successfully installed. |
| DRV_REMOVE | Notifies an installable driver that it is about to be removed from the system. |
lParam1 and lParam2
32-bit message-dependent information.
Return Value
Returns nonzero if successful or zero otherwise.
Requirements
** Windows NT/2000:** Requires Windows NT 3.1 or later.
** Windows 95/98:** Requires Windows 95 or later.
** Header:** Declared in Mmsystem.h.
** Library:** Use Winmm.lib.
See Also