GUI Development Tools

Can anyone offer any advice on GUI development tools?

I'm looking to drive a 640x480 touch screen at >64K colours and also to use
a touchscreen. The display will usually be textual but occasionally colour
images and controls such as sliders, dials and buttons will be required.
There will also be a requirement to decompress a large number of GIFs, but
only one image at a time will be required. I'd also like something that
integrates well with the IAR ARM compiler and it would be nice if there was
some low-level control about where the framestore is and the ability to move
it during execution.

I've been looking into the Segger EmWin tool mainly and it seems pretty good
but you have to buy an awful lot of add-ons before it becomes useable. The
SwellSoft PEG+ package is dearer to start with but includes many of things
you pay extra for from Segger and works out to be a similar price in
practice, although doesn't seem to have particularly good IAR support.

Does anyone have any experience with these packages or perhaps someone can
recommend another one that I haven't looked at yet? Any experience or advice
will be gratefully received.


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