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Sep 20th, 2006
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Keybindings and Image Display

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Hello there, I am trying to write a script for an old 133mhz laptop I have, that will bind every key to different functions, and on a key press a different image, or video will be displayed, and/or a sound file. I have figured out how to bind keys with tkinter, and I have figured out how to display images on a canvas, providing I keep the code seperate, but when I put them together it doesn't work. I would like the image and/or movie to show up on the main tkinter window that starts up, as I will have this fullscreen. Any suggestions would be GREATLY appreciated, as I am really sick right now and spent a good deal of the night trying to figure this out. I am a newbie to python too, which should be obvious.

The functions were just defined for testing, so I know where to put code later on.

Python Syntax (Toggle Plain Text)
  1. from Tkinter import *
  2.  
  3. canvas = Canvas(width = 300, height = 200, bg = 'yellow')
  4. canvas.pack(expand = YES, fill = BOTH)
  5. gif1 = PhotoImage(file = 'getstart.gif')
  6. canvas.create_image(50, 10, image = gif1, anchor = NW)
  7.  
  8.  
  9. def press_a(event):
  10.     print 'You Pressed a'  
  11.  
  12. def press_b(event):
  13.     print 'You pressed b'
  14.  
  15. def press_c(event):
  16.     print 'You pressed c'
  17.  
  18. def press_d(event):
  19.     print 'You pressed d'
  20.  
  21. def press_e(event):
  22.     print 'You pressed e'
  23.  
  24. def press_f(event):
  25.     print 'You pressed f'
  26.  
  27. def press_g(event):
  28.     print 'You pressed g'
  29.  
  30. def press_h(event):
  31.     print 'You pressed h'
  32.  
  33. def press_i(event):
  34.     print 'You pressed i'
  35.  
  36. def press_j(event):
  37.     print 'You pressed j'
  38.  
  39. def press_k(event):
  40.     print 'You pressed k'
  41.  
  42. def press_l(event):
  43.     print 'You pressed l'
  44.  
  45. def press_m(event):
  46.     print 'You pressed m'
  47.  
  48. def press_n(event):
  49.     print 'You pressed n'
  50.  
  51. def press_o(event):
  52.     print 'You pressed o'
  53.  
  54. def press_p(event):
  55.     print 'You pressed p'
  56.  
  57. def press_q(event):
  58.     print 'You pressed q'
  59.  
  60. def press_r(event):
  61.     print 'You pressed r'
  62.  
  63. def press_s(event):
  64.     print 'You pressed s'
  65.  
  66. def press_t(event):
  67.     print 'You pressed t'
  68.  
  69. def press_u(event):
  70.     print 'You pressed u'
  71.  
  72. def press_v(event):
  73.     print 'You pressed v'
  74.  
  75. def press_w(event):
  76.     print 'You pressed w'
  77.  
  78. def press_x(event):
  79.     print 'You pressed x'
  80.  
  81. def press_y(event):
  82.     print 'You pressed y'
  83.  
  84. def press_z(event):
  85.     print 'You pressed z'
  86.  
  87. def press_1(event):
  88.     print 'You pressed 1'
  89.  
  90. def press_enter(event):
  91.     print 'You pressed enter'
  92.  
  93. root = Tk()
  94. frame = Frame(root, width=500,height=500)
  95. Tkinter.Label(frame, image='c:\blah.bmp')
  96.  
  97. root.bind('a', press_a)
  98. root.bind('b', press_b)
  99. root.bind('c', press_c)
  100. root.bind('d', press_d)
  101. root.bind('e', press_e)
  102. root.bind('f', press_f)
  103. root.bind('g', press_g)
  104. root.bind('h', press_h)
  105. root.bind('i', press_i)
  106. root.bind('j', press_j)
  107. root.bind('k', press_k)
  108. root.bind('l', press_l)
  109. root.bind('m', press_m)
  110. root.bind('n', press_n)
  111. root.bind('o', press_o)
  112. root.bind('p', press_p)
  113. root.bind('q', press_q)
  114. root.bind('r', press_r)
  115. root.bind('s', press_s)
  116. root.bind('t', press_t)
  117. root.bind('u', press_u)
  118. root.bind('v', press_v)
  119. root.bind('w', press_w)
  120. root.bind('x', press_x)
  121. root.bind('y', press_y)
  122. root.bind('z', press_z)
  123. root.bind('1', press_1)
  124. root.bind('<Enter>', press_enter)
  125.  
  126. frame.pack()
  127.  
  128. canvas.mainloop()
  129. root.mainloop()
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Newbie Poster
whisper is offline Offline
3 posts
since Sep 2006
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Sep 21st, 2006
0

Re: Keybindings and Image Display

Ouch! This is not an easy project for a newbie!
I corrected some things in your code to make it work at least ...
Python Syntax (Toggle Plain Text)
  1. from Tkinter import *
  2.  
  3. def press_a(event):
  4.     # you are mixing console and GUI
  5.     #print 'You Pressed a'
  6.     # try this ...
  7.     root.title('You Pressed a')
  8.  
  9. def press_b(event):
  10.     print 'You pressed b'
  11.  
  12. def press_c(event):
  13.     print 'You pressed c'
  14.  
  15. def press_d(event):
  16.     print 'You pressed d'
  17.  
  18. def press_e(event):
  19.     print 'You pressed e'
  20.  
  21. def press_f(event):
  22.     print 'You pressed f'
  23.  
  24. def press_g(event):
  25.     print 'You pressed g'
  26.  
  27. def press_h(event):
  28.     print 'You pressed h'
  29.  
  30. def press_i(event):
  31.     print 'You pressed i'
  32.  
  33. def press_j(event):
  34.     print 'You pressed j'
  35.  
  36. def press_k(event):
  37.     print 'You pressed k'
  38.  
  39. def press_l(event):
  40.     print 'You pressed l'
  41.  
  42. def press_m(event):
  43.     print 'You pressed m'
  44.  
  45. def press_n(event):
  46.     print 'You pressed n'
  47.  
  48. def press_o(event):
  49.     print 'You pressed o'
  50.  
  51. def press_p(event):
  52.     print 'You pressed p'
  53.  
  54. def press_q(event):
  55.     print 'You pressed q'
  56.  
  57. def press_r(event):
  58.     print 'You pressed r'
  59.  
  60. def press_s(event):
  61.     print 'You pressed s'
  62.  
  63. def press_t(event):
  64.     print 'You pressed t'
  65.  
  66. def press_u(event):
  67.     print 'You pressed u'
  68.  
  69. def press_v(event):
  70.     print 'You pressed v'
  71.  
  72. def press_w(event):
  73.     print 'You pressed w'
  74.  
  75. def press_x(event):
  76.     print 'You pressed x'
  77.  
  78. def press_y(event):
  79.     print 'You pressed y'
  80.  
  81. def press_z(event):
  82.     print 'You pressed z'
  83.  
  84. def press_1(event):
  85.     print 'You pressed 1'
  86.  
  87. def press_enter(event):
  88.     print 'You pressed enter'
  89.  
  90. root = Tk()
  91.  
  92. canvas = Canvas(width = 300, height = 200, bg = 'yellow')
  93. canvas.pack(expand = YES, fill = BOTH)
  94. #gif1 = PhotoImage(file = 'getstart.gif')
  95. # temporary change, used gif file I had ...
  96. gif1 = PhotoImage(file = 'Green100x100.GIF')
  97. canvas.create_image(50, 10, image = gif1, anchor = NW)
  98.  
  99. frame = Frame(root, width=500, height=500)
  100. frame.pack()
  101. #Tkinter.Label(frame, image='c:\blah.bmp')  # this won't work!!!!!
  102. Label(frame, text="Something ........").pack()
  103.  
  104. root.bind('a', press_a)
  105. root.bind('b', press_b)
  106. root.bind('c', press_c)
  107. root.bind('d', press_d)
  108. root.bind('e', press_e)
  109. root.bind('f', press_f)
  110. root.bind('g', press_g)
  111. root.bind('h', press_h)
  112. root.bind('i', press_i)
  113. root.bind('j', press_j)
  114. root.bind('k', press_k)
  115. root.bind('l', press_l)
  116. root.bind('m', press_m)
  117. root.bind('n', press_n)
  118. root.bind('o', press_o)
  119. root.bind('p', press_p)
  120. root.bind('q', press_q)
  121. root.bind('r', press_r)
  122. root.bind('s', press_s)
  123. root.bind('t', press_t)
  124. root.bind('u', press_u)
  125. root.bind('v', press_v)
  126. root.bind('w', press_w)
  127. root.bind('x', press_x)
  128. root.bind('y', press_y)
  129. root.bind('z', press_z)
  130. root.bind('1', press_1)
  131. root.bind('<Enter>', press_enter)
  132.  
  133. #canvas.mainloop()  # not needed!!!!
  134. root.mainloop()
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vegaseat is offline Offline
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Sep 21st, 2006
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Re: Keybindings and Image Display

Thank you your editing helped me get a better grasp of what was going on, yes this is extremely hard for a newbie, but i'm close to accomplishing what I want and that feels good.

One thing I can't figure out though, is how to repopulate the canvas with a different image, for each key press. I tried changing the press_b function to:

Python Syntax (Toggle Plain Text)
  1. def press_b(event):
  2.     root.title('You pressed b')
  3.     gif1 = PhotoImage(file = '2.gif')
  4.     root.canvas.create_image(50, 10, image = gif1, anchor = NW)

thinking that maybe this would update the canvas in my frame, but instead it just shows "you pressed b". I need almost all the functions to update the image shown to a new image, because he will see different pictures on each key press, but for some of the keys I am going to launch a sound file, or play a video with windows media player.

Again thank you very much for your help, it makes a little more sense now then how I had it written before. Any other advice would be GREATLY appreciated.
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whisper is offline Offline
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since Sep 2006
Permalink
Sep 21st, 2006
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Re: Keybindings and Image Display

It is best to load/create all your image objects outside of the function, otherwise you have to load the file everytime any key is pressed, could lead to a timing problem ...
Python Syntax (Toggle Plain Text)
  1. # ...
  2.  
  3. def press_b(event):
  4.     root.title('You Pressed b')
  5.     # gif_b created outside of function
  6.     canvas.create_image(50, 10, image = gif_b, anchor = NW)
  7.  
  8. # ...
  9.  
  10. # load/create all your picture objects first
  11. gif_b = PhotoImage(file = 'b.GIF')
Last edited by vegaseat; Sep 21st, 2006 at 9:44 pm.
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vegaseat is offline Offline
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Sep 22nd, 2006
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Re: Keybindings and Image Display

There we go, now i'm making a bit of headway...
I'll give it a go for a while on my own, and try to see if I can get something together and atleast somewhat tested, thanks a lot for your help, you've given me a lot so far.
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whisper is offline Offline
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