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using bits of code from another question, I embedded a pygame window in a tkinter window, I'm trying to make a tkbutton that draws a circle on the pygame window, been experimenting for a while and haven't turned any results so far. Any ideas would be great! Here's the code I have so far...

import Tkinter as tk
import os
import pygame as py

#         R   G  B
red =   (225, 0, 0)
green = (0, 255, 0)
w, h = 500, 200

p = False

def maketrue(p):
    p = True
    returnp

root = tk.Tk()
window = tk.Frame(root, width=w, height=h)
window.pack()

os.environ['SDL_WINDOWID'] = str(window.winfo_id())

root.update

py.display.init()
screen = py.display.set_mode((w, h))
screen.fill(py.Color(255, 0, 0))
drawbutton = tk.Button(root, text='Draw Circle', command = maketrue(p))
drawbutton.pack()

while True:
    if p == True:
        py.draw.circle(screen, red, (250, 50), 20)
        py.display.update()
    else:
        pass
    py.draw.circle(screen, green, (250, 100), 20)

    root.update()
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  • 2
    I don't know anything about pygame so I can't help, but I do know that you need to call root.mainloop for Tkinter to work properly. Also, if you're using Tkinter you should avoid having your own infinite loop, since mainloop already serves that purpose. Commented Nov 24, 2012 at 22:25
  • What part is and isn't working, after trying Bryan's comment? Commented Nov 25, 2012 at 6:59
  • It appears to be the button widget and it not wanting to carry out the draw function. Not entirely sure... Commented Nov 26, 2012 at 8:54
  • Don't worry I got it to work, the button was calling the function improperly, I'll upload code later Commented Nov 26, 2012 at 13:10
  • @Bryan Oakley already gave you the answer to your problem! You need to give TKinter control of your main loop. Then you could implement the loop you need for pygame either along the Tkinter OR launch another thread for it and terminate it when Tkinter's mainloop is exited. Commented Feb 28, 2013 at 19:11

1 Answer 1

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Been meaning to do this for a while, but I had time now, this is some basic code, the program makes a tkinter window and then embeds a pygame window in a frame, it then makes another frame and puts a button on that window that when pressed, calls a function that tells pygame to draw a circle on the pygame window.

import pygame
import Tkinter as tk
from Tkinter import *
import os


root = tk.Tk()

embed = tk.Frame(root, width = 500, height = 500) #creates embed frame for pygame window
embed.grid(columnspan = (600), rowspan = 500) # Adds grid
embed.pack(side = LEFT) #packs window to the left

buttonwin = tk.Frame(root, width = 75, height = 500)
buttonwin.pack(side = LEFT)

os.environ['SDL_WINDOWID'] = str(embed.winfo_id())
os.environ['SDL_VIDEODRIVER'] = 'windib'

screen = pygame.display.set_mode((500,500))
screen.fill(pygame.Color(255,255,255))

pygame.display.init()
pygame.display.update()


def draw():
    pygame.draw.circle(screen, (0,0,0), (250,250), 125)
    pygame.display.update()


button1 = Button(buttonwin,text = 'Draw',  command=draw)
button1.pack(side=LEFT)

root.update()

while True:
    pygame.display.update()
    root.update()
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7 Comments

A better way to do this is to call pygame.display.update() via root.after. That way you don't have to have your own mini event loop, and so you don't have to call root.update.
Would this program work on an operating system other than windows? The "windib" os environ change looks like it might only work on windows, and I am considering embedding a pygame program in tkinter for multiple platforms. (I can only test this program on windows at the moment)
Never mind, while this is windows specific, according to stackoverflow.com/questions/8584272/… it looks like this line can simply be omitted and the program works fine on other platforms.
Are there any potential errors that might occur when the the pygame display is a fully functioning game display embedded in the tkinter window? Because this code has raised some strange errors for me. It works perfectly for a time, then crashes for various reasons.
On Linux, I found I had to call root.update() before setting SDL_WINDOWID, otherwise I received an X server error (BadWindow (invalid Window parameter))
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