MGS [2003/09/06] - It seems that KDE can use color pixmap images for Tcl/Tk windows. This is not controlled by Tcl/Tk, but by the window manager, which automatically searches for a matching pixmap icon in the directory /usr/share/icons/mini.
To use a color icon for your app:
1. Create a 16x16 ppm image. I used the Gimp to save a 16x16 ascii ppm image (gimp won't save xpm)
2. Convert ppm to xpm using:
ppmtoxpm myapp.ppm > myapp.xpm
3. Copy myapp.xpm to /usr/share/icons/mini
4. Start wish with the right appname:
wish -name myapp
5. Create new toplevels with the right class
% toplevel .t -class myapp
For reference, I'm using KDE 3.1 on Mandrake 9.1, with a self-compiled Tcl/Tk 8.4.4 (but the default Mandrake-compiled 8.3.3 is also installed in /usr/bin).
Note this has nothing to do with the wm iconbitmap or wm iconwindow commands.