Tkinter: Difference between revisions
→Display window in Center
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[[Category:Scripting]]
__TOC__
<br />
= Basics=
*Installing
sudo apt install python-tk
sudo apt install python3-tk
*Importing
<syntaxhighlight lang="python">
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</syntaxhighlight>
*Importing as per PEP8:
<syntaxhighlight lang="python">
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</syntaxhighlight>
<syntaxhighlight lang="python">
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</syntaxhighlight>
<syntaxhighlight lang="python">
from tkinter import Tk, Label
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</syntaxhighlight>
<syntaxhighlight lang="python">
import tkinter as tk
root = tk.Tk()
#Frame 1
frame1 = tk.Frame(root, height=300, width=200, background="red")
frame1.grid(row=0, column=0)
# Frame 2
tk.Frame(root, height=300, width=200, background="yellow").grid(row=0, column=1)
root.mainloop()
</syntaxhighlight>
= Buttons =
<syntaxhighlight lang="python">
from tkinter import Tk, Button
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</syntaxhighlight>
<syntaxhighlight lang="python">
from Tkinter import *
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</syntaxhighlight>
*Defining Listbox:
listbox = Listbox(root, height=30, width=100)
listbox.xview_scroll(3, "pages")
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listbox.grid(row=7, columnspan=3)
*Inserting output:
listbox.insert(END, "1st Entry")
*Deleting Output:
listbox.delete(0, END)
*Auto-scrolling Scrollbar:
<syntaxhighlight lang="python">
from tkinter import *
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</syntaxhighlight>
<syntaxhighlight lang="python">
root = Tk()
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</syntaxhighlight>
<syntaxhighlight lang="python">
from tkinter import *
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</syntaxhighlight>
<syntaxhighlight lang="python">
from tkinter import *
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</syntaxhighlight>
<syntaxhighlight lang="python">
from Tkinter import *
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</syntaxhighlight>
<syntaxhighlight lang="python">
from tkinter import *
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</syntaxhighlight>
▲=== Filedialog ===
<syntaxhighlight lang="python">
import tkinter
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</syntaxhighlight>
Method to create Child Windows:
<syntaxhighlight lang="python">
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def press():
win1 = Toplevel()
win1.attributes('-topmost', 'true')
Button(win1, text = "Event", command=event).grid()
Button(win1, text = "Q", command=win1.destroy).grid()
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</syntaxhighlight>
<syntaxhighlight lang="python">
from tkinter import *
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</syntaxhighlight>
<syntaxhighlight lang="python">
from tkinter.ttk import Progressbar
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</syntaxhighlight>
* Over Buttons:
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</syntaxhighlight>
To show a message box using Tkinter, you can use messagebox library like this:
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<syntaxhighlight lang="python">
from tkinter import messagebox
messagebox.showinfo('Message title','Message content', parent=frame)
</syntaxhighlight>
*Warn or Error:
<syntaxhighlight lang="python">
messagebox.showwarning('Message title', 'Message content', parent=frame) #shows warning message
messagebox.showerror('Message title', 'Message content', parent=frame) #shows error message
</syntaxhighlight>
*Askquestion dialogs:
<syntaxhighlight lang="python">
res = messagebox.askquestion('Message title','Message content', parent=frame)
res = messagebox.askyesno('Message title','Message content', parent=frame)
res = messagebox.askyesnocancel('Message title','Message content', parent=frame)
res = messagebox.askokcancel('Message title','Message content', parent=frame)
res = messagebox.askretrycancel('Message title','Message content', parent=frame)
</syntaxhighlight>
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from tkinter import messagebox
def clicked():
messagebox.showinfo('Message title', 'Message content', parent=root)
btn = Button(
btn.grid(column=0,row=0)
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</syntaxhighlight>
*To create a Spinbox widget, you can use Spinbox class like this:
spin = Spinbox(window, from_=0, to=100)
spin = Spinbox(window, from_=0, to=100, width=5)
*Complete example:
<syntaxhighlight lang="python">
from tkinter import *
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</syntaxhighlight>
To add a menu bar, you can use menu class like this:
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</syntaxhighlight>
=
To create a tab control follow these steps:
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</syntaxhighlight>
After creating tabs, you can put widgets inside these tabs by assigning the parent property to the desired tab.
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window.mainloop()
</syntaxhighlight>
= Display window in Center =
<syntaxhighlight lang="python">
import tkinter
def center(toplevel):
toplevel.update_idletasks()
w = toplevel.winfo_screenwidth()
h = toplevel.winfo_screenheight()
size = tuple(int(_) for _ in toplevel.geometry().split('+')[0].split('x'))
x = w/2 - size[0]/2
y = h/2 - size[1]/2
toplevel.geometry("%dx%d+%d+%d" % (size + (x, y)))
root = Tk()
win = Toplevel(root)
win.title("Centered!")
center(win)
root.mainloop()
</syntaxhighlight>
<br />
;References
<references/>
<br />
<br />
<br />
{{DISQUS}}
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