MCI_FREEZE

Freezes motion on the display. This command is part of the video overlay command set. The parameters and flags for this message vary according to the selected device.

• Returns zero if successful. Otherwise, it returns an MCI error code.

DWORD lParam1

The following flags apply to all devices supporting MCI_FREEZE:

MCI_NOTIFY	Specifies that MCI should post the MM_MCINOTIFY message when this command completes. The window to receive this message is specified in the dwCallback member of the structure identified by lpFreeze.
MCI_WAIT	Specifies that the freeze operation should finish before MCI returns control to the application.
MCI_OVLY_RECT	Specifies that the rc member of the structure identified by lpFreeze contains a valid rectangle. If this flag is not specified, the device driver will freeze the entire frame.

LPMCI_OVLY_RECT_PARMS lParam2

Specifies a far pointer to a MCI_OVLY_RECT_PARMS structure. (Devices with additional parameters might replace this structure with a device-specific structure.)

See Also

MCI_UNFREEZE