Configuration Messages Sent by the System

Installable drivers can supply a configuration dialog box for users to access through the Drivers option in the Control Panel. If your driver supports different options, it should allow user configuration. Any hardware-related settings should be stored in the system registry in a section having the same name as the driver.

Like other installable drivers, your driver will receive DRV_CONFIGURE and DRV_QUERYCONFIGURE messages from the Drivers option of the Control Panel. If your driver controls hardware that needs to be configured, it should return a nonzero value for the DRV_QUERYCONFIGURE system message and display a hardware configuration dialog box for the DRV_CONFIGURE system message.