Check whether the specified widget is visible or not in Tkinter

In Tkinter, determining if a widget is visible or not can be slightly tricky since there's no direct isVisible method. However, there are ways to deduce this.

One common method is to check the widget's winfo_viewable() method, which returns 1 if the widget and all its ancestors are mapped, or 0 otherwise.

Here's a tutorial demonstrating how to check the visibility of a widget:

1. Initial Setup:

Start by importing the required modules and setting up the main window:

import tkinter as tk

root = tk.Tk()
root.title("Widget Visibility Check")
root.geometry("300x200")

2. Define the Functions:

def toggle_label():
    # If label is visible, we'll hide it, otherwise we'll show it.
    if label.winfo_viewable():
        label.grid_remove()
    else:
        label.grid(row=0, column=0)

    check_visibility()

def check_visibility():
    if label.winfo_viewable():
        status_var.set("Label is: Visible")
    else:
        status_var.set("Label is: Hidden")

The function toggle_label toggles the visibility of the label using grid_remove() (which makes it invisible but keeps its grid settings) and grid() (which makes it visible). The function check_visibility updates a status label based on the visibility of the target label.

3. Create Widgets:

Label to Toggle:

label = tk.Label(root, text="Hello, World!")
label.grid(row=0, column=0, pady=20)

Button to Toggle Visibility:

toggle_btn = tk.Button(root, text="Toggle Label", command=toggle_label)
toggle_btn.grid(row=1, column=0, pady=10)

Label to Display Visibility Status:

status_var = tk.StringVar(root, value="Label is: Visible")
status_label = tk.Label(root, textvariable=status_var)
status_label.grid(row=2, column=0, pady=10)

4. Main Loop:

root.mainloop()

When you run the complete script, you'll see a simple GUI with a label, a button to toggle the label's visibility, and another label to indicate the visibility status of the first label. As you click the button, the visibility of the "Hello, World!" label will toggle, and the status label will update accordingly.

1. Determine if a widget is currently visible in Tkinter:

import tkinter as tk

def is_widget_visible(widget):
    return widget.winfo_ismapped()

# Example of usage:
root = tk.Tk()
label = tk.Label(root, text="Hello, World!")
label.pack()

visibility_status = is_widget_visible(label)
print("Label is visible:", visibility_status)

root.mainloop()

2. Check if Tkinter widget is hidden or shown:

import tkinter as tk

def is_widget_hidden(widget):
    return not widget.winfo_ismapped()

# Example of usage:
root = tk.Tk()
label = tk.Label(root, text="Hello, World!")
label.pack()

visibility_status = is_widget_hidden(label)
print("Label is hidden:", visibility_status)

root.mainloop()

3. Detecting visibility status of Tkinter widget:

import tkinter as tk

def get_widget_visibility_status(widget):
    return "visible" if widget.winfo_ismapped() else "hidden"

# Example of usage:
root = tk.Tk()
label = tk.Label(root, text="Hello, World!")
label.pack()

visibility_status = get_widget_visibility_status(label)
print("Label visibility status:", visibility_status)

root.mainloop()

4. Tkinter widget state checking for visibility:

import tkinter as tk

def check_widget_visibility(widget):
    return widget.state() == "normal"

# Example of usage:
root = tk.Tk()
label = tk.Label(root, text="Hello, World!")
label.pack()

visibility_status = check_widget_visibility(label)
print("Label is visible:", visibility_status)

root.mainloop()

5. How to know if a Tkinter widget is currently displayed:

import tkinter as tk

def is_widget_displayed(widget):
    return widget.winfo_ismapped() and widget.winfo_ismapped()

# Example of usage:
root = tk.Tk()
label = tk.Label(root, text="Hello, World!")
label.pack()

displayed_status = is_widget_displayed(label)
print("Label is displayed:", displayed_status)

root.mainloop()

6. Visibility check for specific Tkinter widget:

import tkinter as tk

def is_specific_widget_visible(widget):
    return widget.winfo_ismapped()

# Example of usage:
root = tk.Tk()
frame = tk.Frame(root)
frame.pack()

label = tk.Label(frame, text="Hello, World!")
label.pack()

visibility_status = is_specific_widget_visible(label)
print("Label is visible:", visibility_status)

root.mainloop()

7. Python Tkinter check if window/widget is visible:

import tkinter as tk

def is_window_visible(window):
    return window.winfo_ismapped()

# Example of usage:
root = tk.Tk()

visibility_status = is_window_visible(root)
print("Window is visible:", visibility_status)

root.mainloop()

8. Detecting hidden widgets in Tkinter GUI:

import tkinter as tk

def detect_hidden_widgets(parent):
    hidden_widgets = [widget for widget in parent.winfo_children() if not widget.winfo_ismapped()]
    return hidden_widgets

# Example of usage:
root = tk.Tk()
label1 = tk.Label(root, text="Visible Label")
label1.pack()

label2 = tk.Label(root, text="Hidden Label")
label2.pack_forget()

hidden_widgets = detect_hidden_widgets(root)
print("Hidden widgets:", hidden_widgets)

root.mainloop()