Title: Opaque Window
1.create a form.
2.Insert a shape(choose the shape you like).
3.In the object inspector, brush property, select the color you want to be opaque.
4.In the pen property, set mode to pmMask.
Make the form transparent with this:
Form1.Brush.Style:=bsClear;
Form1.BorderStyle:=bsNone;
Must be inserted in the procedure form1.create.
and... Enjoy! is really good.