Zoom GUI in fltk backend

[John W. Eaton]

On 23-Jul-2009, Shai Ayal wrote:

| Did rectangle zoom it work for you before the change?

No, I seem to remember similar problems in the past, but I didn't
report them because I wasn't sure what was supposed to be happening.

| Actually I am seeing a lot of problems when using hardware accelerated
| OpenGL, (on intel graphics cards) but when using software rendering
| (e.g. using a remote X-session) I think all is well. you can tell what
| OpenGL renderer you are using by:
| glxinfo | grep renderer

On my system, this command prints

  OpenGL renderer string: Mesa X11

jwe