Video devices that display data in a window on the computer display can have MCI commands for controlling the video display and window. These devices include animation movie players and video overlay devices. Applications send the following commands video devices that display images in a window:
| MCI Message | Description |
|---|---|
| MCI_FREEZE | Stops video capture. |
| MCI_PUT | Defines a source or destination clipping rectangle. |
| MCI_REALIZE | Has a graphic device to realize its palette. |
| MCI_UNFREEZE | Restores video capture. |
| MCI_UPDATE | Has a graphic device update or paint the current frame. |
| MCI_WHERE | Determines the extent of a clipping rectangle. |
| MCI_WINDOW | Specifies a window and the window characteristics used for display. |