[agraham]

It's nothing to do with RectangleEx, it's a Form refresh problem. If in GraphicsAS you remove any references to ScreenScaleX/Y from lines 29 and 30 and change line 57 to "Form1.Refresh" then it will behave as you expect and the code will look identical to an unchanged QVGA app. That's the whole idea of autoScale.

If you were using ImageLib then ImageLib.Refresh would work because ImageLib.Refresh is Autoscale aware and so knows to refresh a larger area of a Form when AutoScaled on a VGA device.

The downside to AutoScale is in displaying graphics as they are zoomed from QVGA to VGA size and lose crispness as a result. I aim to get the best of both worlds with two new graphics controls in the next version of ControslExDevice. Attached is a help file extracted from that for the next version of ControlsExDevice describing how AutoScale works, its' limitations and the two new graphics controls.

I don't at the moment intend to make ImageLibEx AutoScale aware intending it to be used with the two new controls in full VGA applications or semi-AutoScale aware applications that take advantage of AutoScale for control layout but are resolution aware to obtain the highest graphics quality. Such applications will need to work in native graphics resolution so will be capable of using VGA co-ordinates when necessary rather than having some of the co-ordinates altered automatically so possibly causing confusion.