fix scrollbar

chaineTV.py

@@ -35,7 +35,7 @@ class ScrollableCanvas(Frame):
     def __init__(self, parent, *args, **kw):
        Frame.__init__(self, parent, *args, **kw)
         
-       canvas=Canvas(self,width=300,height=300,scrollregion=(0,0,500,500))
+       self.canvas=canvas=Canvas(self,width=300,height=300,scrollregion=(0,0,500,500))
 
        vbar=Scrollbar(self,orient=VERTICAL)
        vbar.pack(side=RIGHT, fill=Y)
@@ -54,7 +54,6 @@ class ScrollableCanvas(Frame):
            # update the scrollbars to match the size of the inner frame
            size = (interior.winfo_reqwidth(), interior.winfo_reqheight())
            canvas.config(scrollregion="0 0 %s %s" % size)
-           canvas.yview_moveto(1)
            if interior.winfo_reqwidth() != canvas.winfo_width():
                # update the canvas's width to fit the inner frame
                canvas.config(width=interior.winfo_reqwidth())
@@ -67,8 +66,9 @@ class ScrollableCanvas(Frame):
        canvas.bind('<Configure>', _configure_canvas)
 
        def _MouseWhell(event):
+           print (event.delta/120)
            canvas.yview_scroll(-1*(event.delta/120), "units")
-       self.bind_all("<MouseWheel>",_MouseWhell)
+       self.bind("<MouseWheel>",_MouseWhell)
        
     
     
@@ -149,6 +149,7 @@ class Interface:
                 print("numero de chaine inconnue")
                 unknow=Label(self.resultframe.interior, text="numero de chaine inconnue")
                 unknow.pack()
+            self.resultframe.canvas.yview_moveto(1)
 
         self.value.set("")