IOCTL_VIDEO_QUERY_AVAIL_MODES IOCTL (ntddvdeo.h)
Returns information about each video mode supported by the adapter. Miniport drivers are required to support this nonmodal request.
Major code
Input buffer
None
Output buffer
The miniport driver returns an array of VIDEO_MODE_INFORMATION structures in the VRP OutputBuffer.
Status block
If the miniport driver successfully returns the available modes, it sets the Information member of the STATUS_BLOCK structure to (sizeof(VIDEO_MODE_INFORMATION) * NumberOfSupportedModes); otherwise, the miniport driver sets this member to zero.
Requirements
| Requirement | Value |
|---|---|
| Header | ntddvdeo.h |