Apologies in advance for the long post - I wanted to be sure I included all the relevant details. The answer is probably very, very simple.
I am doing something stupid here, but I don't know what it is. I'm writing an application with a Tkinter GUI (Python 2.4, Tcl/Tk 8.4.) and I want to put a custom icon on the main window. I've followed (so far as I understand it) the recipe in the eff-bot's splendid Introduction to Tkinter - see: http://www.pythonware.com/library/tkinter/introduction/x9905-icon-methods.htm - but it isn't working for me. Clearly there#s something I didn't get. I need a solution for Linux initially (Mandrake 10.1/KDE 3.2 if it makes a difference) and maybe OS/X in the future. The only solutions I've founds on Google are Windows-specific. Here's what I have at the moment, reduced to its essentials: <code> # Display an application icon. import os.path import Tkinter as tk APP_NAME = "Icon Test" HOME = "/home/tim/Projects/tkDev/playwright" def main(): "Main entry point for the application." # Create the root window. root = tk.Tk() root.title(APP_NAME) # Set the icon. print "current icon name = ", root.iconname() icon_path = os.path.join(HOME, "icon.gif") print "icon_path =", icon_path try: icon_image = tk.PhotoImage(file=icon_path) print "icon_image =", icon_image icon_label = tk.Label(image=icon_image) print "icon_label =", icon_label assert icon_label.master is root print "about to fail.." root.iconwindow(icon_label) print "success??!" except IOError: pass # Create and show the main window. root.mainloop() # Bootstrap code. if __name__ == "__main__": main() </code> And here's the output I get when I run it: <output> current icon name = icon_path = /home/tim/Projects/tkDev/playwright/icon.gif icon_image = pyimage1 icon_label = .1076669484 about to fail.. Traceback (most recent call last): File "test_icon.py", line 38, in ? main() File "test_icon.py", line 27, in main root.iconwindow(icon_label) File "/usr/local/lib/python2.4/lib-tk/Tkinter.py", line 1473, in wm_iconwindow return self.tk.call('wm', 'iconwindow', self._w, pathName) _tkinter.TclError: can't use .1076669484 as icon window: not at top level </output> Obviously the root window doesn't even get displayed. I don't understand the error message. How can I make the Label "top level" enough to do the job? It's a child of root. Calling .pack() doesn't seem to help (although if I comment out the iconwindow() call so that the window actually appears, I can see that the GIF file has loaded correctly). Do I need to hide the root window and create a new Toplevel for my app's main window? I thought root would be an instance of Toplevel. As you can tell, I'm a bit confused here! Wishing-I-was-doing-this-in-wxPython-ly, Tim J -- Website: www DOT jarmania FULLSTOP com -- http://mail.python.org/mailman/listinfo/python-list
