MCI_UNDO

The MCI_UNDO command reverses the most recent successful MCI_CUT, MCI_COPY, MCI_DELETE, or MCI_PASTE command. Digital-video devices recognize this command.

MCIERROR mciSendCommand(MCIDEVICEID wDeviceID, MCI_UNDO, 
    DWORD dwFlags, (DWORD) (LPMCI_GENERIC_PARMS) lpUndo);
 

Parameters

wDeviceID

Device identifier of the MCI device that is to receive the command message.

dwFlags

MCI_NOTIFY, MCI_WAIT, or MCI_TEST. For information about these flags, see The Wait, Notify, and Test Flags.

lpUndo

Address of an MCI_GENERIC_PARMS structure. (Devices with extended command sets might replace this structure with a device-specific structure.)

Return Values

Returns zero if successful or an error otherwise.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in mmsystem.h.

See Also

MCI Overview, MCI Commands, MCI_CUT, MCI_COPY, MCI_DELETE, MCI_GENERIC_PARMS, MCI_PASTE