tk

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Is there a way to sort the entries in a Tk Treeview by clicking the column? Surprisingly, I could not find any documentation/tutorial for this. 回答1: patthoyts from #tcl pointed out that the TreeView Tk demo program had the sort functionality. Here's the Python equivalent of it: def treeview_sort_column(tv, col, reverse): l = [(tv.set(k, col), k) for k in tv.get_children('')] l.sort(reverse=reverse) # rearrange items in sorted positions for index, (val, k) in enumerate(l): tv.move(k, '', index) # reverse sort next time tv.heading(col, command

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to add a menubar with the standard File Open, Save and New options. However, instead of behaving as expected, the subroutine handling the open, save and new actions is launched upon creation of the frame. But, when I actually click on them, it is not. Following is the code I'm using. (Main window contains only the menubar) #!/usr/bin/perl use strict; use warnings; use diagnostics; use Data::Dumper; use Tk 8.0; use Tk::NoteBook; use Tk::MsgBox; my $mw=MainWindow->new; $mw->geometry("+500+300"); # Menu Bar Buttons my $mbar=$mw->Menu

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: Could anyone advise how to retrieve and update a Label widget with the value from a Scale widget in Python? Currently it shows a very large real number. I have tried to type cast the value but this only works when I print to idle. I tried slider.get() but the label is blank. Also tried int(slider.get()) which works when I print to idle. from tkinter import * from tkinter import ttk root = Tk () root . title ( "Playing with Scales" ) mainframe = ttk . Frame ( root , padding = "24 24 24 24" ) mainframe . grid ( column = 0 , row = 0 ,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Till now, I used to end my Tkiter programs with: tk.mainloop() , or nothing would show up! See example: from Tkinter import * import random import time tk = Tk() tk.title = "Game" tk.resizable(0,0) tk.wm_attributes("-topmost", 1) canvas = Canvas(tk, width=500, height=400, bd=0, highlightthickness=0) canvas.pack() class Ball: def __init__(self, canvas, color): self.canvas = canvas self.id = canvas.create_oval(10, 10, 25, 25, fill=color) self.canvas.move(self.id, 245, 100) def draw(self): pass ball = Ball(canvas, "red") tk.mainloop() However,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am making a Tkinter application. In the application, I want to pop up a context menu, which I do using Tk.Menu.post(). I don't know how to make this menu disappear when the application loses focus. I need to do this because the menu stays on top, even when switching to another window, leaving a menu 'artifact'. I put a <FocusOut> event on the menu, which is triggered if the menu has focus and the user moves focus to another application. This works well. What do I do if the main application window has focus? I could put a <FocusOut> event

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm not able to get ruby to require 'tk' successfully. I'm using rvm, ruby 2.0.0, ActiveTcl-8.6, and Ubuntu 12.04 LTS. I have run wish provided with ActiveTcl and it seems to be working. I've looked on the RVM site http://rvm.io/integration/tk and several StackOverflow questions like this one RVM Ruby with TK installation (OSX) . I have tried rvm reinstall 2.0.0 --enable-shared --enable-pthread --with-tk --with-tcl several times on different versions of ruby with no success. Any thoughts? When I run irb and do require'tk' I get the following

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Is there a way to sort the entries in a Tk Treeview by clicking the column? Surprisingly, I could not find any documentation/tutorial for this. 回答1: patthoyts from #tcl pointed out that the TreeView Tk demo program had the sort functionality. Here's the Python equivalent of it: def treeview_sort_column(tv, col, reverse): l = [(tv.set(k, col), k) for k in tv.get_children('')] l.sort(reverse=reverse) # rearrange items in sorted positions for index, (val, k) in enumerate(l): tv.move(k, '', index) # reverse sort next time tv.heading(col, command

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I've already gone through all the similar questions in this regard and tried the solutions proposed there. But I'm unable to get this error sorted out though my python3-tk package is installed in the proper virtualenv that I'm using for my project. though in my project, I don't use tkinter, when i try to run the file, I'm getting the following error related to the _tkinter module. Traceback (most recent call last): File "/usr/lib/python3.5/tkinter/ init .py", line 36, in import _tkinter ImportError: No module named '_tkinter' During handling

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: (Python version: 3.1.1) I am having a strange problem with StringVar in tkinter. While attempting to continuously keep a Message widget updated in a project, I kept getting an error while trying to create the variable. I jumped out to an interactive python shell to investigate and this is what I got: >>> StringVar <class 'tkinter.StringVar'> >>> StringVar() Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Python31\lib\tkinter\__init__.py", line 243, in __init__ Variable.__init__(self, master, value, name) File

I'm writing a slideshow program with Tkinter, but I don't know how to change the background color to black instead of the standard light gray. How can this be done? import os, sys import Tkinter import Image, ImageTk import time root = Tkinter.Tk() w, h = root.winfo_screenwidth(), root.winfo_screenheight() root.overrideredirect(1) root.geometry("%dx%d+0+0" % (w, h)) root.focus_set() root.bind("<Escape>", lambda e: e.widget.quit()) image = Image.open(image_path+f) tkpi = ImageTk.PhotoImage(image) label_image = Tkinter.Label(root, image=tkpi) label_image.place(x=0,y=0,width=w,height=h) root