Tkinter GUI Development

import tkinter as tk # Create main window root = tk.Tk() root.title("My First GUI") root.geometry("400x300") root.configure(bg="#2b2b2b") # Add label label = tk.Label( root, text="Hello, Tkinter!", font=("Arial", 20, "bold"), bg="#2b2b2b", fg="#e5e7eb" ) label.pack(pady=50) # Add button def on_click(): label.config(text="Button clicked!") button = tk.Button( root, text="Click Me!", command=on_click, bg="#10B981", fg="white", font=("Arial", 14, "bold"), padx=20, pady=10, cursor="hand2" ) button.pack(pady=20) # Start GUI loop root.mainloop()

def login(): username = entry_user.get() password = entry_pass.get() if username and password: label_status.config(text=f"Welcome, {username}!") else: label_status.config(text="Please fill all fields") root = tk.Tk() root.title("Login Form") root.geometry("400x300") tk.Label(root, text="Username:").grid(row=0, column=0, padx=10, pady=10) entry_user = tk.Entry(root) entry_user.grid(row=0, column=1, padx=10, pady=10) tk.Label(root, text="Password:", show="*").grid(row=1, column=0, padx=10, pady=10) entry_pass = tk.Entry(root, show="*") entry_pass.grid(row=1, column=1, padx=10, pady=10) tk.Button(root, text="Login", command=login, bg="#A855F7").grid(row=2, column=1, pady=20) label_status = tk.Label(root, text="", fg="#10B981") label_status.grid(row=3, column=0, columnspan=2) root.mainloop()

def button_click(): counter[0] += 1 button.config(text=f"Clicked {counter[0]} times") counter = [0] button = tk.Button(root, text="Click Me", command=button_click)

def on_keypress(event): print(f"Key pressed: {event.char}") def on_mouse_click(event): print(f"Clicked at: ({event.x}, {event.y})") entry.bind("", on_keypress) canvas.bind("", on_mouse_click)

toppings = tk.IntVar() cheese = tk.IntVar() tk.Checkbutton(root, text="Cheese", variable=cheese).pack() tk.Checkbutton(root, text="Pepperoni", variable=toppings).pack() def order(): if cheese.get(): print("Add cheese") print(f"{toppings.get()} pepperonis")

import tkinter as tk from tkinter import ttk def convert_temp(): try: celsius = float(entry.get()) fahrenheit = (celsius * 9/5) + 32 result_label.config(text=f"{fahrenheit:.1f}°F") except ValueError: result_label.config(text="Invalid input") root = tk.Tk() root.title("Temperature Converter") root.geometry("350x250") root.resizable(False, False) ttk.Label(root, text="Celsius:").pack(pady=20) entry = ttk.Entry(root, font=("Arial", 14), justify="center") entry.pack(pady=10) entry.insert(0, "0") ttk.Button(root, text="Convert", command=convert_temp).pack(pady=10) result_label = ttk.Label(root, text="32.0°F", font=("Arial", 18, "bold")) result_label.pack(pady=20) root.mainloop()

menubar = tk.Menu(root) root.config(menu=menubar) file_menu = tk.Menu(menubar, tearoff=0) menubar.add_cascade(label="File", menu=file_menu) file_menu.add_command(label="New", command=new_file) file_menu.add_command(label="Open", command=open_file) file_menu.add_separator() file_menu.add_command(label="Exit", command=root.quit)

from tkinter import messagebox def show_alert(): messagebox.showinfo("Success", "Operation completed!") messagebox.showerror("Error", "Something went wrong!") result = messagebox.askyesno("Confirm", "Save changes?") if result: print("User clicked Yes")