MCIWnd provides macros that allow you to define the playback scope. The scope is the portion of the playback you want to play. For example, you can play the content from a position other than the beginning position by using the MCIWndPlayFrom macro. This macro moves to the specified position, begins playback, and continues to the end of the content. Similarly, you can play the content to a specified end point by using the MCIWndPlayTo macro. This macro starts at the current playback position and plays until it reaches the specified position or the end of the content is reached, whichever comes first.
Also, you can define both the beginning and ending positions by using the MCIWndPlayFromTo macro. This macro moves to the specified starting position and plays until the specified ending position or the end of the content is reached.