Hello David,

David Wang wrote:
> Hello Trolls,
>
>     I'm trying to make the qt work on an windows ce platform. And I 
> have several questions about the relationship between Qt and wince 
> display system.


>     1. When Qt draw something, It use GDI or display driver or other 
> module?
Right now Qt for Windows CE uses the GDI, but  we use our own raster 
engine to draw lines, gradients, circles etc, since this is faster in 
most cases.

>     2. In this platform, there is hardware accelerator for GDI and 
> OpenGL-ES. And the OpenGL-ES driver is also ready. How to config the 
> Qt to use the hardware accelerator?

You can configure Qt with -opengl-es-cm or opengl-es-cl to enable OpenGL 
support via QGLWidget. But this does not mean, that all the drawing is 
based on OpenGL ES. You have to explicitly instantiate  a QGLWidget to 
use OpenGL ES.

Kind Regards,

Thomas Hartmann
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