MCI_PLAY

Signals the device to begin transmitting output data. 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_PLAY:

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 lpPlay.
MCI_WAIT	Specifies that the play operation should finish before MCI returns control to the application.
MCI_FROM	Specifies that a starting position is included in the dwFrom member of the structure identified by lpPlay. The units assigned to the position values is specified with the MCI_SET_TIME_FORMAT flag of the MCI_SET command. If MCI_FROM is not specified, the starting position defaults to the current location.
MCI_TO	Specifies that an ending position is included in the dwTo member of the structure identified by lpPlay. The units assigned to the position values is specified with the MCI_SET_TIME_FORMAT flag of the MCI_SET command. If MCI_TO is not specified, the end position defaults to the end of the media.

LPMCI_PLAY_PARMS lParam2

Specifies a far pointer to an MCI_PLAY_PARMS structure. (Devices with extended command sets might replace this structure with a device-specific structure.)

Animation Extensions

The following additional flags for lParam1apply to animation devices:

Note that lParam2 specifies a far pointer to an MCI_ANIM_PLAY_PARMS structure.

Videodisc Extensions

The following additional flags for lParam1apply to videodisc devices:

Nope that lParam2 specifies a far pointer to an MCI_VD_PLAY_PARMS structure.

See Also

MCI_CUE, MCI_PAUSE, MCI_RECORD, MCI_RESUME, MCI_SEEK, MCI_STOP