I have question to CTkToplevel and CTkScrollableFrame

[limafresh]

1. How to set the CTkToplevel window icon? In Linux, CTkToplevel takes the icon from the main window, and in Windows, there is a CustomTkinter logo instead, and setting it using the .iconbitmap() method does not work either.
2. In Windows, scrolling CTkScrollableFrame with mouse wheel works, but in Linux it doesn't. Any plans to add it?

[dipeshSam]

@limafresh

Fixes: #2387

Plans: #2365, #2683, #2095

Regards.

[bigb-me]

@limafresh

Fixes: #2387

Plans: #2365, #2683, #2095

Regards.

Hi I think I'm having the same issue:

settings_window = ctk.CTkToplevel(root)
settings_window.title("Settings")
settings_window.geometry("800x600")

icon_path = os.path.join(base_path, "assets", "icon.ico")
try:
    if os.path.exists(icon_path):
        settings_window.iconbitmap(icon_path)
    else:
        raise FileNotFoundError(f"Ffile not found at {icon_path}")
except Exception as e:
    print(f"Error: {e}")

And the issue seams to be custom tkinter as when I change 'settings_window = ctk.CTkToplevel(root)' to 'settings_window = tk.Toplevel(root)' it seams to work. Do I have the same issue? (Win11 Python3.13)
Thanks.

[dipeshSam]

@bigb-me
The issue could be partially the same. Have you fixed it using the fix #2387?

[limafresh]

Yes

[bigb-me]

@bigb-me
The issue could be partially the same. Have you fixed it using the fix #2387?

This may be me misunderstanding but when I click on the 2387 issue, the fix (from the linked issue 2387)is to:

Try this method:
.....
For toplevels:

self.wm_iconbitmap()
self.after(300, lambda: self.iconphoto(False, self.iconpath))

I tried the fix, by having the wait before applying the icon but this does not fix for me.
The code witch I'm having problems with (stripped down version):

from customtkinter import ThemeManager
from customtkinter import CTkImage
from customtkinter import CTkFont
import customtkinter as ctk
import tkinter as tk
from PIL import Image, ImageTk
import sys, os

base_path = getattr(sys, '_MEIPASS', os.path.abspath("."))

root = ctk.CTk()
root.geometry("800x600")
root.minsize(550, 400)
icon_path = os.path.join(base_path, "assets", "NEWicon.ico")
root.iconbitmap(icon_path)

def create_settings_window(pre_selected_tab=None):
    global base_path
    settings_window = ctk.CTkToplevel(root)
    settings_window.title("Settings")
    settings_window.geometry("800x600")
    settings_window.grab_set()
    settings_window.resizable(False, False)

    icon_path = os.path.join(base_path, "assets", "NEWicon.ico")
    try:
        if os.path.exists(icon_path):
            #settings_window.iconbitmap(icon_path) # What I was orrigonlay setting my icon with
            settings_window.wm_iconbitmap()
            settings_window.after(300, lambda: settings_window.iconphoto(False, settings_window.iconpath)) # Update with the 'fix'
        else:
            raise FileNotFoundError(f"Ffile not found at {icon_path}")
    except Exception as e:
        print(f"Error: {e}")
            
create_settings_window()

But this does not fix the issue and instead gives a error:
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Users-\AppData\Local\Programs\Python\Python313\Lib\tkinter_init_.py", line 2068, in call
return self.func(*args)
~~~~~~~~~^^^^^^^
File "C:\Users-\AppData\Local\Programs\Python\Python313\Lib\tkinter_init_.py", line 862, in callit
func(*args)
~~~~^^^^^^^
File "C:\Users-\Downloads\help\example code.py", line 30, in
settings_window.after(300, lambda: settings_window.iconphoto(False, settings_window.iconpath)) # Update with the 'fix'
^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'CTkToplevel' object has no attribute 'iconpath'. Did you mean: 'iconmask'?

So yeah overall I added the fix but it just gives a error (unless I have written it wrong?).

[bigb-me]

Sorry for the late reply!

[dipeshSam]

@bigb-me
I wrote a function which help can you. Here is your refined code:

from customtkinter import CTk, CTkToplevel
import tkinter as tk
import platform, sys, os

# from customtkinter import ThemeManager
# from customtkinter import CTkImage
# from customtkinter import CTkFont
# from PIL import Image, ImageTk
import customtkinter as ctk



def get_base_path():
    """Provides base path."""

    return getattr(sys, '_MEIPASS', os.path.abspath("."))


def set_window_icon(window: CTk | CTkToplevel, icon_path: str):
    """
    Sets the window icon for a Tkinter/Customtkinter application in a cross-platform way.

    Parameters
    -----------
    window : CTk | CTkToplevel
        The root window of the Tkinter/Customtkinter application.

    icon_path : str
        The file path to the icon image. The file format should match the operating system:
            - Windows: .ico file is required.
            - Linux: .png or .xbm is recommended.
            - macOS: .png is recommended (iconbitmap is ignored on macOS).

    Notes
    ------
    - On macOS, setting the icon may not always affect the app icon in the dock.
    - For best results, supply a properly sized image (e.g., 32x32 or 64x64 pixels).
    - If an unsupported file type is used for the current OS, a warning is printed.
    
    """
    system = platform.system()

    if system == "Windows":
        if icon_path.endswith(".ico"):
            window.after(200, lambda: window.iconbitmap(icon_path)) 
        else:
            print("Warning: Windows requires a .ico file for icons.")
    elif system == "Linux":
        # On Linux, many window managers accept .png as well
        if icon_path.endswith(".png") or icon_path.endswith(".xbm"):
            icon_image = tk.PhotoImage(file=icon_path)
            window.after(200, lambda: window.iconphoto(True, icon_image))
        else:
            print("Warning: Linux supports .png or .xbm files.")
    elif system == "Darwin":  # macOS
        # macOS ignores iconbitmap, but iconphoto sometimes works
        if icon_path.endswith(".png"):
            icon_image = tk.PhotoImage(file=icon_path)
            window.after(200, lambda: window.iconphoto(True, icon_image))
        else:
            print("Warning: macOS typically supports .png for icons.")
    else:
        print("Unsupported OS")
    

def create_settings_window(pre_selected_tab=None):
    settings_window = ctk.CTkToplevel(root)
    settings_window.title("Settings")
    settings_window.geometry("450x300")
    settings_window.grab_set()
    settings_window.resizable(False, False)

    icon_path = os.path.join(get_base_path(), "assets", "theicon.ico")

    # Set Toplevel window icon
    set_window_icon(settings_window, icon_path)


if __name__ == "__main__":
    root = ctk.CTk()
    root.geometry("500x350")
    root.minsize(550, 400)
    icon_path = os.path.join(get_base_path(), "assets", "theicon.ico")

    # Set main window icon
    set_window_icon(root, icon_path)

    
    # Having top level window
    create_settings_window()


    root.mainloop()

Output:

Regards

[bigb-me]

Ok well this works now for me, thanks.