IOCTL_VIDEO_QUERY_DISPLAY_BRIGHTNESS IOCTL (ntddvdeo.h)
This IOCTL is not handled by video miniport drivers. It is handled entirely by the system-supplied video port driver.
Major code
Status block
Irp->IoStatus.Status is set to STATUS_SUCCESS if the request is successful.
Otherwise, Status to the appropriate error condition as a NTSTATUS code.
For more information, see NTSTATUS Values.
Remarks
Note This IOCTL is obsolete in Windows Vista. Instead, use the Windows Management Instrumentation (WMI) monitor brightness class. For information about WMI, see the documentation in the Microsoft Windows SDK.
Requirements
| Requirement | Value |
|---|---|
| Header | ntddvdeo.h |