求助各位Tk以及Tkinter大神，要是没有人帮，我真得就无助了啊啊！！

具体问题看这里：
http://topic.csdn.net/u/20110615/15/3e0d6328-c694-4673-a17f-a93bb9e38996.html

我不是自己不努力，我已经搞了好几天了，可实在不行啊，没办法了，求各位大神伸手援助小弟！！！求求你们了，我真得是搞不定这个问题啊！！！

angle_su的建议很好啊，你试过了吗?

不是说了试试pil嘛，函数参数长得很像tk，你学过tk这个应该容易上手。或者下面例子调度下win api函数从屏幕取色，同之前的例子类似，你点中图形有提示...
Python code

from Tkinter import *
import tkMessageBox
from ctypes import *

def callback(event):
    x, y = event.x, event.y
    items = canvas.find_overlapping(x, y, x, y)
    if items:
        left, top, right, bottom = canvas.bbox(items[0])
        ox, oy = canvas.winfo_rootx(), canvas.winfo_rooty()
        msg = []
        for y in range(oy+top, oy+bottom):
            for x in range(ox+left, ox+right):
                rgb = GetPixel(hdc, x, y)
                if rgb == 0xffffff:
                    msg.append('. ')
                else:
                    msg.append('* ')
            msg.append('\n')
        tkMessageBox.showinfo('tk', ''.join(msg))
        
CreateDC = windll.gdi32.CreateDCA
hdc = CreateDC('DISPLAY', None, None, None)
GetPixel = windll.gdi32.GetPixel

root = Tk()
canvas = Canvas(root, width=200, height=200, bg='white')
canvas.pack()
canvas.create_text(100, 100, fill='black', font=('Arial', 10, NORMAL), text='H')
canvas.bind('<Button-1>', callback)
root.mainloop()

很久没搞这东西，好像忘了DeleteDC，不知道会怎样...