Thread: KeyPress event with holding down the key
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Join Date: Jul 2006
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jrcagle jrcagle is offline Offline
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Re: KeyPress event with holding down the key

 
0
  #5
Feb 24th, 2007
Odd. Here's a full working version:

Python Syntax (Toggle Plain Text) 
  1. from Tkinter import *
  2.  
  3. class MyFrame(Frame):
  4.  
  5.     def __init__(self, master):
  6.         Frame.__init__(self, master)
  7.         self.go = False
  8.  
  9.         self.bind('<a>', self.showJudgments)
  10.         self.bind('<KeyRelease-a>', self.makeChoice)
  11.         self.pack(expand=YES, fill=BOTH)
  12.         self.focus_force()
  13.  
  14.     def showJudgments(self, event=None):
  15.         if self.go == False:
  16.             self.go = True
  17.             self.showJudgmentsA()
  18.         else: 
  19.             self.keepShowing()
  20.  
  21.     def keepShowing(self):
  22.         print 'a key being pressed'
  23.  
  24.     def showJudgmentsA(self):
  25.         print "key-press started"
  26.  
  27.     def makeChoice(self, event=None):
  28.         print "choice made"
  29.         self.go = False
  30.  
  31.  
  32. mainw = Tk()
  33. mainw.f = MyFrame(mainw)
  34. mainw.f.grid()
  35. mainw.mainloop()

with output
Python Syntax (Toggle Plain Text) 
  1. >>> 
  2. key-press started       # pressed 'a' here
  3. a key being pressed
  4. a key being pressed
  5. a key being pressed
  6. a key being pressed
  7. a key being pressed
  8. a key being pressed
  9. a key being pressed
  10. a key being pressed
  11. a key being pressed
  12. a key being pressed
  13. a key being pressed
  14. a key being pressed
  15. a key being pressed
  16. a key being pressed
  17. a key being pressed
  18. a key being pressed
  19. a key being pressed
  20. choice made            # let go here
  21. key-press started     # next press here
  22. a key being pressed
  23. a key being pressed
  24. a key being pressed
  25. a key being pressed
  26. a key being pressed
  27. a key being pressed
  28. a key being pressed
  29. a key being pressed
  30. a key being pressed
  31. choice made            # ...and release.
  32. >>>
Hope it helps,
Jeff
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