MM_MCISIGNAL

This message is sent to a window to notify an application that a device has reached a position defined with the MCI_SIGNAL message.

Parameters	WORD wParam	Contains the ID of the device initiating the signal message.
	LONG lParam	Normally contains the value from the dwUserParm field of the MCI_DGV_SIGNAL_PARMS when the MCI_SIGNAL message defined this callback.

	If the MCI_DGV_SIGNAL_POSITION flag was specified with the MCI_SIGNAL message defining the callback, this parameter contains the position reached by the device when it sent the MM_MCISIGNAL message.
Comments	Notice that the composition of the parameters for this message are different from those used in the MM_MCINOTIFY callback.