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IOCTL_VIDEO_RESTORE_HARDWARE_STATE IOCTL (ntddvdeo.h)

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Restores all values used to set the hardware registers. Miniport drivers for VGA-compatible adapters are required to support this nonmodal request; optional for other miniport drivers.

Major code

IRP_MJ_DEVICE_CONTROL

Input buffer

The VRP InputBuffer contains the previously-saved VIDEO_HARDWARE_STATE structure.

Output buffer

None

Status block

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

Requirements

Requirement Value
Header ntddvdeo.h