[Qt-wince-interest] performance

[Jörg Bornemann]

Hi Stefano,

First of all, thanks for your feedback!

The performance of the emulator usually differs from real world devices. 
Depending on the capabilities of your device it may perform better for 
some applications, e.g. if it supports accelerated graphics.
   Both demos, spreadsheet and texteditor are designed for an desktop Qt 
  without any optimization for embedded systems. So its likely that they 
don't perform perfectly on your device. But that you must wait several 
seconds before you see a selection indicator of a cell in the 
spreadsheet example is odd. Maybe you're tricked by the fact that 
applications waits on mouse press for the context menu to pop up. We 
just don't show the context menu animation you get in standard Windows 
CE applications. Could you try whether a short click results in a faster 
UI response?

> Now I'm recompiling Qt's with -static option in configure.
> Can this make generated application more fast?

Depending on your application this can result in a noticable speedup. We 
recommend a static Qt build, if you're developing a single Qt 
application for a specific device to get maximal performance.

> There will be a porting to ceGcc or gcc in the future?

There are no plans of porting to cegcc until this compiler gets into a 
mature state.

> It will be possible compile for windows platform (with some wince 
> limitation), test it and then recompile to final platform?

A big advantage of Qt is that you can develop and test your application 
on your favourite platform (Win32, Linux or MacOS). Then just recompile 
it using Qt/WinCE for your device and voila - the application is ported.


Best regards,

Jörg