- 1 year ago
tkinter style only applies when theme_use is called
In tkinter
, the styles you define using ttk.Style()
will not be applied automatically to all widgets unless you explicitly call theme_use()
to activate the theme. Here's an example of how you can apply a style to all widgets using theme_use()
:
pythonimport tkinter as tk
from tkinter import ttk
root = tk.Tk()
# Create a style object
style = ttk.Style()
# Define the style properties
style.configure("MyStyle.TButton", font=("Helvetica", 12))
# Apply the style to all widgets
style.theme_use("default")
# Create a button with the custom style
button = ttk.Button(root, text="Click Me", style="MyStyle.TButton")
button.pack()
root.mainloop()
In this example, we define a custom style named "MyStyle.TButton" with a specific font. Then, we use style.theme_use("default")
to activate the default theme, which applies the style to all widgets.
It's important to note that calling theme_use()
will affect the appearance of all widgets, so any existing styles defined by the theme will also be applied. If you want more fine-grained control over the styles of individual widgets, you can use the configure()
method of the style object directly on each widget.
Alternatively, if you want to apply a style to a specific widget or a group of widgets, you can use the configure()
method directly on the widget instance without calling theme_use()
. For example:
pythonbutton = ttk.Button(root, text="Click Me")
button.configure(style="MyStyle.TButton")
In this case, the style will only be applied to the specific widget(s) you configure, without affecting other widgets in the application.