MCI_UNDO

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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.

To send this command, call the mciSendCommand function with the following parameters.

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

Pointer to 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.

Requirements

**  Windows NT/2000/XP:** Included in Windows NT 3.1 and later.
**  Windows 95/98/Me:** Included in Windows 95 and later.
**  Header:** Declared in Mmsystem.h; include Windows.h.

See Also

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