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.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in mmsystem.h.
  Import Library: Use winmm.lib.