MCI_LOAD

Loads a file. Support of this message by a device is optional. 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_LOAD:

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 lpLoad.
MCI_WAIT	Specifies that the load operation should finish before MCI returns control to the application.
MCI_LOAD_FILE	Indicates the lpfilename member of the structure identified by lpLoad contains a pointer to a buffer containing the file name.

LPMCI_LOAD_PARMS lParam2

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

Video Overlay Extensions

The following additional flags for lParam1apply to video overlay devices supporting MCI_LOAD:

MCI_OVLY_RECT

Specifies that the rc member of the structure identified by lParam2 contains a valid display rectangle that identifies the area of the video buffer to update.

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

MCI_LOAD

Video Overlay Extensions

See Also