// ntddvdeo.h

typedef struct _VIDEO_NUM_MODES {
  ULONG NumModes;
  ULONG ModeInformationLength;
} VIDEO_NUM_MODES, *PVIDEO_NUM_MODES;
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Windows Driver Kit DDI reference (ns-ntddvdeo-_video_num_modes)

_VIDEO_NUM_MODES structure

Description

The VIDEO_NUM_MODES structure contains the number of modes supported by a video adapter, and the size of the structure that describes each mode.

Members

`NumModes`

Specifies the number of modes supported by the device.

`ModeInformationLength`

Is the length, in bytes, of the VIDEO_MODE_INFORMATION structure that describes each of the modes supported by the device.

Remarks

The miniport driver returns a VIDEO_NUM_MODES structure in response to an IOCTL_VIDEO_QUERY_NUM_AVAIL_MODES request.

VIDEO_NUM_MODES - NtDoc