如何使tkinter窗口变圆？
如何使tkinter窗口变圆？
提问于 2021-08-19 09:24:10
我正在试着做一个圆型的直接窗子。到目前为止，我已经这样做了：
from tkinter import Tk, Canvas, BOTH, PhotoImage
from tkinter.constants import NW, RAISED
import pyautogui as pg
root = Tk()
root.overrideredirect(1)
root.attributes("-topmost", 1)
root.geometry("500x500")
# Creating a canvas for placing the squircle shape.
canvas = Canvas(root, height=500, width=500, highlightthickness=0)
canvas.pack()
def place_center(): # Placing the window in the center of the screen
global x, y
reso = pg.size()
rx = reso[0]
ry = reso[1]
x = int((rx/2) - (500/2))
y = int((ry/2) - (500/2))
root.geometry(f"500x500+{x}+{y}")
def round_rectangle(x1, y1, x2, y2, radius=25, **kwargs): # Creating a rounded rectangle
points = [x1+radius, y1,
x1+radius, y1,
x2-radius, y1,
x2-radius, y1,
x2, y1,
x2, y1+radius,
x2, y1+radius,
x2, y2-radius,
x2, y2-radius,
x2, y2,
x2-radius, y2,
x2-radius, y2,
x1+radius, y2,
x1+radius, y2,
x1, y2,
x1, y2-radius,
x1, y2-radius,
x1, y1+radius,
x1, y1+radius,
x1, y1]
return canvas.create_polygon(points, **kwargs, smooth=True)
place_center()
# Taking a screenshot and adding it to the canvas to create a transparent effect
root.withdraw()
s = pg.screenshot(region=(x, y, 500, 500))
tp = "C:\\Users\\username\\AppData\\Local\\Temp\\bg.png"
s.save(tp)
bg = PhotoImage(file=tp)
canvas.create_image(0, 0, image=bg, anchor=NW)
root.deiconify()
os.remove(tp)
# Creating the squircle
round_rectangle(0, 0, 500, 500, radius=70, fill="#1fa5fe")
root.mainloop()我使用此函数来移动窗口：
def move(event):
fx = root.winfo_pointerx() - 250
fy = root.winfo_pointery() - 10
root.geometry(f"500x500{fx}+{fy}")我没有把它添加到代码中，因为当我移动窗口时，它又变成了方形，因为屏幕截图只拍摄了一个特定的区域。
在移动之前：
移动后：
即使我移动它，我怎么能使它转过来？
我尝试在while True:循环中使用root.withdraw()和root.deiconify()，但它导致闪烁。
任何帮助都将不胜感激。
谢谢。
回答 2
Stack Overflow用户
回答已采纳
发布于 2021-08-20 10:03:56
如何在tkinter中改变窗口的形状(虽然这在Windows机上应该是可行的，但是其他一些操作系统(macOS，Linux)可能会有问题，这意味着这个精确的代码可能不能工作，也不能给出想要的输出)。代码注释中的说明：
from tkinter import Tk, Canvas
from PIL import Image, ImageTk
import requests
# load image from web but you can of course load it from file, this is
# just so you can run and immediately see the results
url = 'http://media-s3-us-east-1.ceros.com/g3-communications/images/2019/01/15/05eea4b9b9ce010d2dd6b0c063d2f5ca/p1-blob.png?imageOpt=1&fit=bounds&width=893'
data = requests.get(url, stream=True).raw
# just when loading your own image instead of `data` use the path, and resize
# if you need, can obvs change these numbers
image = Image.open(data).resize((600, 600), Image.ANTIALIAS)
root = Tk()
# set root bg color to some rare color because
# the `-transparentcolor` affects all colors on the window, all of them
root.config(bg='grey15')
# just simply set window to the middle, not necessary
root.geometry(f'+{root.winfo_screenwidth() // 2 - 300}+{root.winfo_screenheight() // 2 - 300}')
# the important part, set the transparentcolor to some rare color in this case `grey15`,
# can obvs be sth else depending on your theme
root.attributes('-transparentcolor', 'grey15')
# remove window from window manager
root.overrideredirect(True)
# create canvas and set the bg to the same "rare" color (width and height set
# to image width and height, can be sth different too)
canvas = Canvas(
root, bg='grey15', width=image.width, height=image.height, highlightthickness=0
)
canvas.pack()
# convert image to PhotoImage for `tkinter` to understand
photo = ImageTk.PhotoImage(image)
# put the image on canvas because canvas supports transparent bg
canvas.create_image(0, 0, image=photo, anchor='nw')
root.mainloop()关键部分是.attributes('-transparentcolor', ...) (最有可能在某些操作系统上不起作用)，以及窗口的形状是由该形状的图像形成的(图像应该有透明的背景( .png图像))。也可以简单地使用Canvas方法(.create_)绘制形状。同样重要的是要记住，该属性影响窗口上的所有颜色，这意味着例如，如果您将透明颜色设置为白色，而背景图像包含白色，则它很可能也是透明的(尽管看起来可能不太好)，因此我建议使用GUI上最不可能出现的颜色
Stack Overflow用户
发布于 2021-08-20 13:40:17
我相信这会解决你的问题。
from tkinter import *
from PIL import ImageTk, Image
import pyautogui as pg
root = Tk()
root.overrideredirect(1)
root.configure(bg="white")
root.attributes("-topmost", 1)
root.attributes("-transparentcolor", "white")
root.geometry("500x500")
label = Label(root, height=900, width=900, bg="white", border=0)
label.pack()
def place_center(): # Placing the window in the center of the screen
global x, y
reso = pg.size()
rx = reso[0]
ry = reso[1]
x = int((rx / 2) - (500 / 2))
y = int((ry / 2) - (500 / 2))
root.geometry(f"500x500+{x}+{y}")
place_center()
img = Image.open("bg.png")
img = img.resize((300, 300), Image.ANTIALIAS)
imagem = ImageTk.PhotoImage(img)
label.configure(image=imagem)
root.mainloop()页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/68845235
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