// ntddvdeo.h

// CTL_CODE(0x0023, 0x103, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_VIDEO_SET_CURRENT_MODE 0x0023040C
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Windows Driver Kit DDI reference (ni-ntddvdeo-ioctl_video_set_current_mode)

IOCTL_VIDEO_SET_CURRENT_MODE IOCTL

Description

Sets the adapter to the specified operating mode. Miniport drivers are required to support this nonmodal request because it resets the current mode. The miniport driver must also consider the two high order flags which are used to additionally control the mode set operation. See VIDEO_MODE for further information.

Parameters

Major code

Input buffer

The VRP InputBuffer contains a VIDEO_MODE structure specifying the mode to be set.

Input buffer length

Output buffer

None

Output buffer length

Input/output buffer

Input/output buffer length

Status block

The miniport driver does not set the Information member of the STATUS_BLOCK structure.

IOCTL_VIDEO_SET_CURRENT_MODE - NtDoc