Open your form in 4D's Design environment Form Editor and draw a _QMovie plug-in area where you want your movies to appear.
Area setup in QMedia v1.5 is codeless. All values that control the initial behavior of your area can be set by means of the Advanced Properties Dialog. Double-click on the area to invoke the object properties palette, then click on Advanced... to display the APD. This is what you will get (all 3 pages shown):
The properties available through this dialog allow you to control:
All these properties can be altered later from your code, by means of plug-in commands.