mirror of
https://github.com/uhi22/pyPLC.git
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59 lines
1.5 KiB
Python
59 lines
1.5 KiB
Python
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# This is a simple Tkinter program, running a main loop and reacting on keys
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#
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# Tested on Windows10 with python 3.9
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#
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# https://groups.google.com/g/comp.lang.python/c/dldnjWRX3lE/m/cL69gG3fCAAJ
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#------------------------------------------------------------
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import tkinter as tk
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import time
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import pyPlcWorker
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def storekeyname(event):
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global nKeystrokes
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global lastKey
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nKeystrokes+=1
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lastKey = event.keysym
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worker.handleUserAction(lastKey)
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return 'break' # swallow the event
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def inkey():
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global lastKey
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return lastKey
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lastKey = ''
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def cbAddToTrace(s):
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print(s)
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def cbShowStatus(s):
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print(s)
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lblStatus['text']=s
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root.update()
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root = tk.Tk()
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lastKey = ''
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display = tk.Label(root, text='No Key', width=30) # A textual element in the graphical user interface
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display.pack()
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lblHelp = tk.Label(root, text="x=exit, t=testframe")
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lblHelp.pack()
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lblStatus = tk.Label(root, text="(Status)")
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lblStatus.pack()
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# Bind the keyboard handler to all relevant elements:
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display.bind('<Key>', storekeyname)
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root.bind('<Key>', storekeyname)
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cbShowStatus("initialized")
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root.update()
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worker=pyPlcWorker.pyPlcWorker(cbAddToTrace, cbShowStatus)
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nMainloops=0
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nKeystrokes=0
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while lastKey!="x":
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time.sleep(.3) # 'do some calculation'
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nMainloops+=1
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# print(str(nMainloops) + " " + str(nKeystrokes)) # show something in the console window
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root.update()
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worker.mainfunction()
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#---------------------------------------------------------------
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