MCI_UPDATE

See also MCI_PUT, MCI_WHERE

Updates the display rectangle. This command is part of the animation 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_UPDATE:

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 lParam2.
MCI_WAIT	Specifies that the palette should be realized before MCI returns control to the application.

LPMCI_GENERIC_PARMS lParam2

Specifies a far pointer to a device specific structure. For a description of this parameter, see the lParam2 description included with the device extensions.

Animation Extensions

The following flags additional flags for lParam1 apply to animation devices supporting MCI_UPDATE:

MCI_ANIM_RECT	Specifies that the rc member of the structure identified by lParam2 contains a valid rectangle. If this flag is not specified, the entire window is updated.
MCI_ANIM_UPDATE_HDC	Specifies that the hDC member of the structure identified by lParam2 contains a handle to the display context. This flag is required.

Note that lParam2 specifies a far pointer to a MCI_ANIM_UPDATE_PARMS structure.