If the current position is at the last track when Next is called, Next makes the current position the beginning of the last track. If the multimedia device doesn't use tracks, Next goes to the end of the medium. Next is called when the Next button on the media player control is clicked at runtime. 

Upon completion, Next stores a numerical error code in the Error property, and the corresponding error message in the ErrorMessage property. 

The Wait property determines whether control is returned to the application before the Next method has completed. The Notify property determines whether Next generates an OnNotify event. 

Error 

ErrorMessage 

Notify 

OnNotify 

Wait 

Adding Audio and/or Video Clips to an Application