is opengl the correct solution?

["Henning Meyer" <Henning_Meyer gmx net>]

Hello *,

I want to develop a Linux-based Application which should render 
an grayscale (2d) image update on mouse-moves with a rate of 
about 10-20fps.
All rendering will be done by my own code. May I use just the 
gtk-- classes to display the animated image-content or should I 
use opengl?
What widget should I use???
How fast is opengl in comparison to gtk?
Will it be easy to use nice rescale-functions if I'm forced to 
render previews in low resolutions and want to display them in full-size?

Thanks for your help

Henning

Please reply to: Henning_Meyer gmx net

Henning Meyer 
----------------------------
[Homer is applying for a job as a department store Santa Claus.]  
Manager: Do you like children?    Homer: What do you mean, all 
the time? Even when they're nuts?