Best Cross Platform GUI Development Tool?

[Ken Moffat]

Alma J Wetzker wrote:
> Looking for opinions here.
>
> What is the best tool set for creating cross platform GUIs?  I need
> something that that comes together fairly quickly and can access a
> database backend.  Must run on Windoze (I will develop on linux.)  It
> may be a web based application.  What should I use?  Why?
>
> There are no right or wrong answers here, I just need to find something
> vaguely familiar that I can throw an application together in a month or
> so.  'C' is my favorite programming language.
>
> TIA
>
>     -- Alma
>
>   
Some thoughts:

Netbeans is good if you can stomach java. Does drag and drop gui dev, 
similar to borland delphi, but in java.

Eclipse is in the same vein, and does have a pretty good c/c++ plugin, 
but no gui automation.

wxWindows is cross platform, and looks good, but I have heard it not 
recommended... not sure why.

I recently tried an app called f-spot on linux, an image import/organize 
program, that was written using mono, (c#?) and it's pretty nice, 
polished. Don't know if it's crossplatform. You would think mono would 
translate easily to windows. There seems to be a MonoDevelop IDE.

Too bad Borland delphi/c+builder for linux never came together.