Tkinter uses WPF controls

introduction

wpf As an advanced Windows UI frame , It has rich controls and functions , And super fast rendering speed .

Before that , I have achieved in tkinter Use in WinFroms Control , however WinFroms More like tradition win32, and wpf have access to xaml Design interface . So can we be here tkinter Use in wpf Control? ？

The answer is yes .

because wpf There are many controls , It is unrealistic to bind them one by one . Therefore, this article only allows you to tkinter Use in wpf, Then the writer himself adds WPF Control .

For the convenience of writing , One tkWPF Only one wpf Control , After all, it's not about creating a wpf window , We just want to use some of these controls .

Of course , If the writer adds a Window Control to display xaml Content , Then I don't insist .

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Advance statement

We need to have wpf The core support of the library and pythonnet.

The program needs to be STA Run in thread mode .

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Can be displayed wpf Of tkinter Control

wpf The embedded WinFroms

here , First, we need to wpf Control embedded in WinFroms in , The next thing is easy to do .

First import what you need ：

import clr
clr.AddReference('System.Windows.Forms')
clr.AddReference("PresentationFramework.Classic, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35")
clr.AddReference("PresentationCore, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35")
clr.AddReference('WindowsFormsIntegration, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35')#?
clr.AddReference('System.Threading')
from clr import System
from System import Uri
from System.Windows.Controls import ContentControl,Button as wpfButton,MediaElement
from System.Windows.Forms.Integration import ElementHost
from System.Windows.Forms import Control
from System.Threading import Thread,ApartmentState,ThreadStart
from tkinter import Frame,Tk
from tkinter import ttk
import ctypes
user32=ctypes.windll.user32

Create a class ：

class tkWPF(Frame):
    """ stay tkinter Shows a wpf Control """

    def __init__(self,parent,width=500,height=500):
        Frame.__init__(self,parent,width=width,height=height)
        #...

establish WinFroms carrier ：

        wf=Control()#WinForm carrier 
        wf.Width=width
        wf.Height=height

establish wpf Carrier and embedded WinFroms In the carrier ：

        el=ElementHost()#WPF carrier 
        el.Width,el.Height=width,height
        wf.Controls.Add(el)
        el.Visible=True
        uc=ContentControl()#WPF Control 
        el.Child=uc
        self.wf=wf
        self.el=el
        self.uc=uc

Use this WinFroms Control

This was said before , Just give the code .

        self.wfhwnd=int(str(self.wf.Handle))
        user32.SetParent(self.wfhwnd,self.winfo_id())
        user32.MoveWindow(self.wfhwnd,0,0,width,height,True)
        self.bind('<Configure>',self.__resize)
        
    def __resize(self,event):
        width=self.winfo_width()
        height=self.winfo_height()
        self.wf.Width,self.el.Width=width,width
        self.wf.Height,self.el.Height=height,height

Create a wpf Control

This process is decided by the author ,tkWPF Provide a control Method .

    def control(self,control):# Identify new wpf Control 
        self.uc.AddChild(control)

here ContentControl Class can only use one wpf Control

Complete class code

class tkWPF(Frame):
    """ stay tkinter Shows a wpf Control """

    def __init__(self,parent,width=500,height=500):
        Frame.__init__(self,parent,width=width,height=height)
        wf=Control()#WinForm carrier 
        wf.Width=width
        wf.Height=height
        el=ElementHost()#WPF carrier 
        el.Width,el.Height=width,height
        wf.Controls.Add(el)
        el.Visible=True
        uc=ContentControl()#WPF Control 
        el.Child=uc
        self.wf=wf
        self.el=el
        self.uc=uc
        self.wfhwnd=int(str(self.wf.Handle))
        user32.SetParent(self.wfhwnd,self.winfo_id())
        user32.MoveWindow(self.wfhwnd,0,0,width,height,True)
        self.bind('<Configure>',self.__resize)

    def __resize(self,event):
        width=self.winfo_width()
        height=self.winfo_height()
        self.wf.Width,self.el.Width=width,width
        self.wf.Height,self.el.Height=height,height

    def control(self,control):# Identify new wpf Control 
        self.uc.AddChild(control)

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A simple example

here , We will use both wpf Buttons and ttk The button . there wpf The button size varies with tkWPF Control changes .

def STAMain():
    global media
    try:
        a=Tk()
        a.geometry('500x500')
        ttk.Button(a,text=' Play ',command=play).pack()
        f=tkWPF(a)
        f.pack(fill='both',expand=True)

        btn=wpfButton()
        btn.Content='wpf button'
        f.control(btn)

        a.mainloop()
    except Exception as err:
        print(err)
 
def main():
    t = Thread(ThreadStart(STAMain))
    t.ApartmentState = ApartmentState.STA
    t.Start()
    t.Join()
 
if __name__ == "__main__":
    main()

Be sure to use STA Threads .

try The third code block in the statement is to confirm the display wpf What is the control .

The effect is as follows ：

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Conclusion

wow,tkinter It also has a very powerful function .

With wpf,tkinter There are many things that can be done , For example, play videos in common formats （MPEG-4） etc. . Usually tkinter Playing video also requires OpenCV、PIL These miscellaneous things , The effect is not good . Now? tkinter Only by pythonnet（ as well as wpf Core support ） You can play audio video and audio . Here is a very simple example ：

tkinter Is becoming stronger , There are also more fan groups .

tkinter innovation