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.

typedef struct _VIDEO_NUM_MODES {
  ULONG  NumModes;
  ULONG  ModeInformationLength;
} VIDEO_NUM_MODES, *PVIDEO_NUM_MODES;

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.

Comments

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

Requirements

Headers: Declared in Ntddvdeo.h. Include Ntddvdeo.h.

See Also

VIDEO_MODE_INFORMATION, IOCTL_VIDEO_QUERY_NUM_AVAIL_MODES