Platform SDK: Win32 API

Supporting Input-Output Control in VxDs

A VxD can support the device IOCTL interface by processing the W32_DEVICEIOCONTROL message in the VxD's control procedure. You can take advantage of the device IOCTL interface by providing a VxD that performs privileged (ring 0) operations for your application. For more information, see the following topics:

Built on Friday, January 28, 2000