ulParam1 (ULONG)

This parameter can contain any of the following flags:

MCI_NOTIFY

A notification message will be posted to the window specified in the hwndCallback parameter of the data structure pointed to by the pParam2 parameter. The notification will be posted when the action indicated by this message is completed or when an error occurs.
MCI_WAIT
Control is not to be returned until the action indicated by this message is completed or an error occurs.
MCI_RESTORE_SRC_RECT
The SrcRect field of the MCI_RESTORE_PARMS data structure contains a rectangle specifying the area to be restored from the capture device element. If this flag is not specified, the entire image is restored.
MCI_RESTORE_DEST_RECT
The DestRect field of the MCI_RESTORE_PARMS data structure contains a rectangle specifying the destination area of the window to be restored. If this flag is not specified, the destination size is assumed to be the same as the image size in device coordinates placed at the lower-left corner of the window.

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