CustomTkinter provides the CTkEntry widget, allowing you to create modern and customizable input fields. In this tutorial, we will learn how to create and personalize an Entry widget in CustomTkinter.

Creating a Simple Entry in CustomTkinter

Here is a basic example of how to create a simple Entry:

import customtkinter as ctk

# Main class
class App(ctk.CTk):
    def __init__(self):
        super().__init__()
        self.geometry("400x200")
        self.title("Creating Entry")

        # Creating a simple Entry
        self.entry = ctk.CTkEntry(self, placeholder_text="Type something here")
        self.entry.place(relx=0.5, rely=0.5, anchor="center")  # Centering the entry

# Initializing the App
app = App()
app.mainloop()

Description:

  • The text entry is created using the CTkEntry widget, and the placeholder text (a hint for users) is set using the placeholder_text argument.

  • The place() method positions the Entry in the center of the window using relx=0.5, rely=0.5, and anchor="center" for alignment.

Customizing an Entry in CustomTkinter

You can customize the appearance and behavior of an Entry in several ways, such as changing colors, width, height, and font. Here is an example of a customized Entry:

import customtkinter as ctk

# Main class
class App(ctk.CTk):
    def __init__(self):
        super().__init__()
        self.geometry("400x200")
        self.title("Customized Entry")

        # Creating a customized Entry
        self.entry = ctk.CTkEntry(
            self,
            placeholder_text="Enter your name",
            width=250,                 # Entry width
            height=40,                 # Entry height
            fg_color=("white", "gray75"),  # Background color
            text_color=("black", "white"), # Text color
            corner_radius=10,          # Rounded corners
            font=("Arial", 14)         # Custom font
        )
        self.entry.place(relx=0.5, rely=0.5, anchor="center")  # Centering the entry

# Initializing the App
app = App()
app.mainloop()

Customization Features in the Example:

  • fg_color: Defines the background color of the Entry.

  • text_color: Defines the text color inside the Entry.

  • corner_radius: Adds rounded borders to the Entry.

  • font: Allows setting the text font inside the Entry.

CTkEntry Arguments

Here are some key arguments you can use when creating an Entry with CTkEntry:

Argument Description
master Defines the parent widget (window or frame).
placeholder_text Text that appears as a hint to the user (placeholder).
width Width of the Entry (in pixels).
height Height of the Entry (in pixels).
fg_color Background color of the Entry (can be a color tuple for light and dark modes).
text_color Color of the text inside the Entry.
corner_radius Radius of the Entry's corners (for rounded edges).
font Font of the Entry text (name, size).
show Characters to be displayed, useful for passwords.
state Defines the Entry state (normal, disabled, readonly).

CTkEntry Methods

Besides the arguments, CTkEntry also has useful methods for handling user input:

.get(): Retrieves the text entered in the Entry.

text_entered = self.entry.get()
print(text_entered)

.set(value): Sets a new value in the Entry.

self.entry.set("New Text")

.delete(): Deletes the text inside the Entry.

self.entry.delete(0, "end")  # Deletes all text

.bind(): Binds events such as key presses to the Entry.

self.entry.bind("<Return>", lambda e: print("Enter pressed"))

Example: Creating an Input Form with a Button

In this example, the user enters their name in an Entry, and a button displays the name on the screen when clicked.

import customtkinter as ctk

# Main class
class App(ctk.CTk):
    def __init__(self):
        super().__init__()
        self.geometry("400x200")
        self.title("Input Form")

        # Function to display the entered name
        def show_name():
            name = self.entry.get()  # Get text from Entry
            self.label.configure(text=f"Hello, {name}!")  # Update label text

        # Creating the Entry
        self.entry = ctk.CTkEntry(self, placeholder_text="Enter your name", width=250)
        self.entry.place(relx=0.5, rely=0.4, anchor="center")

        # Creating the button to display the name
        self.button = ctk.CTkButton(self, text="Show Name", command=show_name)
        self.button.place(relx=0.5, rely=0.6, anchor="center")

        # Label to display the greeting
        self.label = ctk.CTkLabel(self, text="")
        self.label.place(relx=0.5, rely=0.8, anchor="center")

# Initializing the App
app = App()
app.mainloop()

Example Description:

  • The Entry field receives the user's name.

  • The Button calls the show_name function, which retrieves the Entry text using .get() and displays it in a Label.

Now you have both basic and advanced knowledge to create Entries in CustomTkinter, enabling you to build interactive and modern interfaces for your applications!

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