The CTkTextbox is a widget used to create text areas in CustomTkinter. It supports vertical and horizontal scrolling (when configured with wrap='none') and allows text manipulation using methods like insert, get, and delete.

The indices used to manipulate the text are based on tkinter.Text. More information about index formatting can be found in the official Tkinter Text widget documentation

Basic Example (Without Classes)

import customtkinter

# Initial configuration
app = customtkinter.CTk()
app.geometry("400x300")

# Creating a text box
textbox = customtkinter.CTkTextbox(app, width=300, height=200)
textbox.pack(padx=10, pady=10)

# Inserting, retrieving, and deleting text
textbox.insert("0.0", "Initial text inserted into the textbox.")
text = textbox.get("0.0", "end")  # Getting the text
print("Text in the textbox:", text)

textbox.delete("0.0", "end")  # Removing the text
textbox.insert("0.0", "Updated text.")  # Re-inserting text
textbox.configure(state="disabled")  # Setting textbox to read-only

app.mainloop()

Example Using Classes

Here's an example where the CTkTextbox fills the entire window:

import customtkinter

class App(customtkinter.CTk):
    def __init__(self):
        super().__init__()
        self.geometry("500x400")
        self.grid_rowconfigure(0, weight=1)
        self.grid_columnconfigure(0, weight=1)

        # Creating the CTkTextbox
        self.textbox = customtkinter.CTkTextbox(master=self, width=400, corner_radius=0)
        self.textbox.grid(row=0, column=0, sticky="nsew")

        # Inserting sample text
        self.textbox.insert("0.0", "Sample text in the textbox.\n" * 20)

app = App()
app.mainloop()

 

CTkTextbox Parameters

Argument Description
master Required. Parent widget (root, Frame, or TopLevel).
width Width of the textbox in pixels.
height Height of the textbox in pixels.
corner_radius Radius of the rounded corners in pixels.
border_width Border thickness in pixels.
border_spacing Minimum spacing between text and border (default: 3).
fg_color Background color (single value or tuple: (light_color, dark_color)).
border_color Border color (single value or tuple).
text_color Text color (single value or tuple).
scrollbar_button_color Scrollbar main color.
scrollbar_button_hover_color Scrollbar hover color.
font Font as a tuple, e.g., ("Arial", 12).
activate_scrollbars Enables/disables scrollbars (default: True).
state Sets the state as "normal" (editable) or "disabled" (read-only).
wrap Line wrapping mode: "char", "word", or "none".

Useful Methods

Method Description
.configure() Updates widget properties (e.g., state="disabled").
.cget() Gets the current value of a given property (e.g., textbox.cget("state")).
.bind() Binds an event to a specific action.
.unbind() Unbinds a previously bound action.
.insert() Inserts text at a given index (e.g., textbox.insert("0.0", "Text")).
.delete() Deletes text between two indices (e.g., textbox.delete("0.0", "end")).
.get() Retrieves text between two indices (e.g., textbox.get("0.0", "end")).
.focus_set() Sets the focus on the widget.

With these examples and arguments, you can create highly customizable text areas to suit the needs of your project using CustomTkinter.

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