Print ( "Checking for existance =", bool (widget.winfo_exists ()))ī2 = Button (root, text = "Btn 2", command = lambda : dest (b1))ī3 = Button (root, text = "Btn 3", command = lambda : exist (b1)) mtodo winfoismapped() Este mtodo se utiliza para comprobar si el widget especificado est visible o no. However, I cannot test the existence of a Toplevel by passing the name of this to winfoexists () method. Tkinter proporciona numerosos mtodos de widgets universales o mtodos de widgets bsicos que funcionan con casi todos los widgets disponibles. Print ( "Destroy method called. Widget exists? = " , Understanding winfoexists () Ask Question Asked 9 months ago Modified 9 months ago Viewed 155 times 2 I’m trying to test the existence of a toplevel using the winfoexists () method made available by Tkinter. Syntax: widget.winfo_exists () Return value: Returns True if widget exists, False otherwise. This method is used to check if the specified widget exists or not, i.e. widget destroyed or not. # infinite loop, interrupted by keyboard or mouse mainloop ()
# This is used to make the widget invisibleī2 = Button (root, text = "Btn 2", command = lambda : forget (b1))ī3 = Button (root, text = " Btn 3 ", command = lambda : retrieve (b1)) Print ( "After Forget method called. Is widget mapped? = " , x and y are pixel coordinates relative to the widget. Widget ¶ identify (x, y) ¶ Returns the name of the element at position x y, or the empty string if the point does not lie within any element. Exception: If widget is destroyed, then it throws error. Besides the methods described below, the ttk.Widget supports the methods () and (). Syntax: widget.winfo_ismapped () Return Value: Returns True if widget is visible (or mapped), otherwise returns False. This method is used to test, whether the specified widget is visible or not. Tkinter provides many generic widget methods or base widget methods that work with almost all available widgets.
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