In article <[EMAIL PROTECTED]>,
Kezhong Zhou <[EMAIL PROTECTED]>
wrote:
> > This is a common GL problem, not related to FLTK.
> >
> > Your card or driver may handle the second monitor in a different way.
> > Ensure that the visual modes for both monitors are the same, otherwise
> > the driver might resort to software-only when dragging a window from one
> > monitor to the other.
> >
>
> In my previous version, I use glut and MFC for GUI development.
> The previous version goes well in both single monitor mode and dual monitor
> mode.
>
> Thus I think the problem is related with FLTK .
>
> My video card is Intel GMA 900 onboard, and my system is Win xp Sp2.
Are you using the GLUT emulation layer?
What visual mode are you requesting?
Just for debugging, try to print the result of the usual
glGetString(GL_VENDOR);
GL_RENDERER
GL_EXTENSIONS
calls in your GL programs, in the old program and in the one using FLTK.
Outputs should match.
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