tkinter - touchscreen, push the button like click the mouse

[John64]

Hi,
I have PanelPC (Advantech) - Touchscreen computer with Windows10 Pro. Im build an app on Python to communicate with PLC Siemens via TCP. It's working super fine.
For human interface I use tkinter, but I have problem with buttons:
I want the buttons to react to a touchscreen push the same way as a mouse click. Now I need to slide the button a little to action.

Is it possible to do this?

baggroundcolor = "#3d6466"
    buttoncolor = "#28393a"
    buttonpushedcolor = "#badee2"
                   
    def button_giveme():                
        global window_output_bools        
        choosen = False
        if window_output_bools[0] == True:
            window_output_bools[0] = False
            choosen = True
            
        if window_output_bools[0] == False and choosen == False:
            window_output_bools[0] = True
        
    #def widget-----------------------------------------------
              
    root = tkinter.Tk()
    root.title("PK")    
    root.geometry('1366x720')
    root.state('zoomed')
    
    #canvas       
    canvas = tkinter.Canvas(root, width= 1366, height= 720, bg=baggroundcolor)
    canvas.pack(fill= tkinter.BOTH, expand= True)
    
    main_backgroundimage = tkinter.PhotoImage(file="C:/Users/OEM/Desktop/Program/Py/GUI/pkhd.png")    
    canvas.create_image((683, 370), image = main_backgroundimage)
    
    
    #buttons
    btn_givemethecard = tkinter.Button(
        canvas,
        text="Give me the card",
        font=("TkHeadingFont",12),
        bg=buttoncolor,
        fg="white",        
        activebackground=buttonpushedcolor,
        activeforeground="black",
        command=lambda:button_giveme()
        )   
   
    btn_givemethecard.place(x=90, y=240)   
    
    #run window app
    root.mainloop()                

[deanhystad]

What window event is sent when you press the touch screen?

[John64]

If I touched the screen the event logg show me nothing, when I relased the screen I saw:

touch screen
When I try with mouse I see (slide and click button):

mouseclick

---

Now I try with Kivy - button is working like I wanted.

Has Kivy function like root.after? - I used this function to call communication function in loop.

[deanhystad]

Kivy has the clock object that is used to schedule events. Or you could run run the communication function in a different thread.

[John64]

Thank You for help,
I just used from kivy.clock import Clock - Clock.schedule_interval(self.communication,0.1) - it's working

---

In first way i used communication as main process and tkinter as child process, but with Kivy when I started child process as Kivvy i have two window's. So I make now Kivy the main process and communication as a child process.

---

I'm just ordinary auotmation guy, but I just started with Python.

[deanhystad]

Tkinter does not work well if it is not the main thread.