On 2016-08-15 19:41, huey.y.ji...@gmail.com wrote:
Hi All,
I am trapped by these two funny things:
class MyClass(upClass):
def start(self):
***do_menu_here****
self.load_label_image() # ---> this works
self.load_canvas_image() # ---> this does not work
def load_label_image(self):
img = PhotoImage(file="xx.gif")
Label(self, image=img).pack(side=BOTTOM, expand=YES, fill=BOTH)
return img
def load_canvas_image(self):
img = PhotoImage(file="xx.gif")
self.canvas = Canvas(self, width=500, height=300, bg='white')
self.canvas.pack(expand=YES, fill=BOTH)
self.canvas.create_image(50, 0, image=img, anchor=NW)
if __name__ == '__main__':
root = Tk()
root.mainloop()
load_label_image() works. However, I cannot do BIND with it, because img has no
method to do binding. So, I am trying load_canvas_image. Surprise, it does not
work. These two defs are so similar, but Python complained that no attribute of
load_canvas_image(). It is there, coexisting with load_label_image().
I cannot figure out what is wrong with it, can somebody tell me why? Thanks!
If you can't bind to the image itself, then bind to the label you put it
in instead.
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