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Video-Overlay Command Set

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[The feature associated with this page, MCI, is a legacy feature. It has been superseded by MediaPlayer. MediaPlayer has been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer instead of MCI, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

Video-overlay devices support the following set of commands.

String form Message form
break MCI_BREAK
capability MCI_GETDEVCAPS
close MCI_CLOSE
freeze MCI_FREEZE
info MCI_INFO
load MCI_LOAD
open MCI_OPEN
put MCI_PUT
save MCI_SAVE
set MCI_SET
status MCI_STATUS
sysinfo MCI_SYSINFO
unfreeze MCI_UNFREEZE
where MCI_WHERE
window MCI_WINDOW