MGS [2003/09/06] - It seems that KDE can use xpm and png images for Tcl/Tk windows. This is not controlled by Tcl/Tk, but by the window manager, which automatically searches for an icon of the matching window class in the directory /usr/share/icons/mini.
DLR [2003/10/06] - There is a common standard for color icons in toplevel windows for KDE and GTK. Take a look a [L1 ] and TIP 159 [L2 ]
You can use png images or xpm pixmaps (and maybe others?).
To use an xpm pixmap 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.
And here's a small icon browser. It re-creates a toplevel window with the selected class.
proc new {} {
set sel [.l curselection]
if { ![llength $sel] } { return }
set index [lindex $sel 0]
set class [.l get $index]
destroy .t
toplevel .t -class $class
wm title .t $class
}
listbox .l -exportselection 0 -yscrollcommand [list .y set]
scrollbar .y -orient vertical -command [list .l yview]
grid columnconfigure . 1 -weight 1
grid rowconfigure . 1 -weight 1
grid .l -column 1 -row 1 -sticky nsew
grid .y -column 2 -row 1 -sticky ns
set dir /usr/share/icons/mini
foreach f [lsort -dictionary [glob -nocomplain -directory $dir *.png *.xpm]] {
.l insert end [file root [file tail $f]]
}
bind .l <<ListboxSelect>> [list new]