MCI_ESCAPE

Sends a string directly to the device. This message is part of the videodisc command set. The parameters and flags for this message vary according to the selected device.

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

DWORD lParam1

The following flags apply to all devices supporting MCI_COMMAND:

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 lpEscape
MCI_WAIT	Specifies that the operation should finish before MCI returns control to the application.
MCI_VD_ESCAPE_STRING	Indicates a command string is specified in the lpstrCommand member of the structure identified by lpEscape. This flag is required.

LPMCI_VD_ESCAPE_PARMS lParam2

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

The data sent with MCI_ESCAPE is device dependent and is usually passed directly to the hardware associated with the device.