50行代碼不到 利用python+tkinter製作基礎的截圖工具

完整代碼

import tkinter as tk
# from tkinter import *
from PIL import Image, ImageGrab, ImageTk
import ctypes, sys

if sys.getwindowsversion().major == 10:
    ctypes.windll.shcore.SetProcessDpiAwareness(2)


def area_sel():
    def getPress(event):
        global press_x,press_y
        press_x,press_y = event.x,event.y

    def mouseMove(event):
        global press_x, press_y, rectangleId
        fullCanvas.delete(rectangleId)
        rectangleId = fullCanvas.create_rectangle(press_x,press_y,event.x,event.y,width=5)

    def getRelease(event):
        global press_x, press_y, rectangleId
        top.withdraw()
        img = ImageGrab.grab((press_x, press_y,event.x,event.y))
        img.show()

    top = tk.Toplevel()
    top.state('zoomed')
    top.overrideredirect(1)
    fullCanvas = tk.Canvas(top)

    background = ImageTk.PhotoImage(ImageGrab.grab().convert("L"))
    fullCanvas.create_image(0,0,anchor="nw",image=background)

    fullCanvas.bind('<Button-1>',getPress)
    fullCanvas.bind('<B1-Motion>',mouseMove)
    fullCanvas.bind('<ButtonRelease-1>',getRelease)

    fullCanvas.pack(expand="YES",fill="both")
    top.mainloop()

root = tk.Tk()
rectangleId = None
sel_btn = tk.Button(root, text='select area', width=20, command=area_sel)
sel_btn.pack()

root.mainloop()