Question about object and transparency

I have started on making a small drawing program.
I have a background png and a drawing tool png.
As you drag the tool around the window it draws very small rectangles (looks like pixels).

My problem is that as i draw the rectangles, they show thru the draw tool.

I’ve tried making the drawing tool png opaque
object. alpha = 1

but it doesn’t work.

Any help would be appreciated. [import]uid: 34179 topic_id: 6822 reply_id: 306822[/import]