[Gambas-user] painting / drawing multiple layers

[olmec]

I am attempting to draw / paint into a drawingarea with 2 different layers.

The background id a picture object and takes up the entire drawing area

The layer on top is a polygon drawn by the mouse and is currently as a
picture object created with pain controls but this does not display nicely
and transparent over the background. This layer is redrawn as the mouse
moves / clicks to set new polygon points.

What is the best way to structure this for efficiency and no flickering,
transparent layer shape over background.

I hope the is clear.

Olmec
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