System-Defined IOCTL_VIDEO_XXX Requests
Typically, most video miniport drivers support the following requests:
IOCTL_VIDEO_QUERY_NUM_AVAIL_MODES
IOCTL_VIDEO_QUERY_CURRENT_MODE
IOCTL_VIDEO_UNMAP_VIDEO_MEMORY
IOCTL_VIDEO_SHARE_VIDEO_MEMORY
IOCTL_VIDEO_UNSHARE_VIDEO_MEMORY
IOCTL_VIDEO_QUERY_PUBLIC_ACCESS_RANGES
IOCTL_VIDEO_FREE_PUBLIC_ACCESS_RANGES
IOCTL_VIDEO_GET_POWER_MANAGEMENT
IOCTL_VIDEO_SET_POWER_MANAGEMENT
IOCTL_VIDEO_SET_CHILD_STATE_CONFIGURATION
IOCTL_VIDEO_VALIDATE_CHILD_STATE_CONFIGURATION
Depending on the adapter's features, video miniport drivers can support the following additional requests:
IOCTL_VIDEO_QUERY_COLOR_CAPABILITIES
IOCTL_VIDEO_SET_COLOR_REGISTERS (required if the device has a palette)
IOCTL_VIDEO_QUERY_POINTER_CAPABILITIES
IOCTL_VIDEO_QUERY_POINTER_ATTR
IOCTL_VIDEO_QUERY_POINTER_POSITION
IOCTL_VIDEO_SET_POINTER_POSITION
IOCTL_VIDEO_HANDLE_VIDEOPARAMETERS
VGA-compatible SVGA miniport drivers are required to support the following additional requests:
IOCTL_VIDEO_SAVE_HARDWARE_STATE
IOCTL_VIDEO_RESTORE_HARDWARE_STATE
IOCTL_VIDEO_QUERY_CURSOR_POSITION
IOCTL_VIDEO_SET_CURSOR_POSITION
IOCTL_VIDEO_GET_BANK_SELECT_CODE
IOCTL_VIDEO_SET_PALETTE_REGISTERS
Details for each IOCTL can be found in Video Miniport Driver I/O Control Codes. Miniport driver writers should not use undocumented system-defined IOCTLs.
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