Keyboard

javadoc
Submitted by GroG on Mon, 06/17/2013 - 06:45

The Keyboard Service allows keyboard input to be sent to other services.  At the moment the keyboard events are retrieved from a gui element, so the keyboard control must have focus.

Important update:

From version 1.0.1802 the Keyboard service will listen to all keyboard events even if it doesn't have focus.

 

This small program shows how to get keyboard input into a Python service.



 




Example for develop:
#file : Keyboard.py edit raw
# create services
python = Runtime.start("python", "Python")
keyboard = Runtime.start("keyboard", "Keyboard")
python.subscribe("keyboard", "publishMouseMoved")

# non blocking event example
keyboard.addKeyListener(python);

def onKey(key):
    print ("you pressed ", key)

def onMouseMoved(mouseEvent):
    print ("x ", mouseEvent.pos.x, " y ", mouseEvent.pos.y)

# blocking example
print "here waiting"
keypress = keyboard.readKey()
print "finally you pressed", keypress, "!"

    

            





  
  

    

  kwatters's picture


Wait for enter from a keyboard
    
Submitted by kwatters on Fri, 10/17/2014 - 12:58.

    
    



     


	Here's a python script that will start a keyboard service.. attach a callback for the "Enter" key.



	it creates a loop in the waitForEnter  to wait on the global variable "keyboardInput" to be set. then it breaks the loop and continues.   You'll ahve to be on the keyboard service page to press enter o/w it won't get picked up in the gui.



	 



	 



	keyboardInput = None



	keyboard = Runtime.start("keyboard", "Keyboard")



	keyboard.addCommand("Enter", "python", "onKey", "Enter")



	 



	def onKey(cmd):



	  global keyboardInput



	  keyboardInput = cmd



	  print 'python data is', cmd



	 



	def waitForEnter():



	  global keyboardInput



	  while True:



	    if keyboardInput is None:



	      continue



	    else:



	      keyboardInput = None



	      break



	 



	print "Do something"



	waitForEnter()



	print "Ok. you've done something. now. do something else"



	waitForEnter()



	print "yay. you did something..."

         

    
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  kmcgerald's picture


Here is what I went with for
    
Submitted by kmcgerald on Fri, 10/17/2014 - 19:50.

    
    



     

Here is what I went with for my servo calibration script.


 



		keyboard = Runtime.start("keyboard", "Keyboard") # For getting user confirmation



		 



		def waitForInput():



		  print "Press the C key to continue\n"



		  keypress = keyboard.readKey()



		  while keypress != 'C': #loop until space



		    keypress = keyboard.readKey()



		 



		#here we'll print some stuff and then call the waitForInput function



		print "On your mark ... Get set ..."



		waitForInput()



		print "GO!!!!"





	 



	 

         

    
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