I cannot see my left frame with a button inside (I'm using TKinter).. This is my code:
#create window & frames
root = Tk()
root.title( "Medical Visualization" )
rootFrame = Frame(root)
rootFrame.pack( fill=BOTH, expand=1, side=TOP )
leftframe = Frame(root, width=100, bg="blue")
leftframe.pack(fill=X, expand=True)
button = Button(leftframe, text="Add Isosurface", fg="red")
button.pack( side = LEFT)
root.mainloop()
thanks