DSP Robotics Support

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###########################
# Ruby Key Sender by Tronic
###########################

require 'Win32API'
# http://msdn.microsoft.com/en-us/library/windows/desktop/ms646306(v=vs.85).aspx
MapVirtualKey = Win32API.new('user32.dll', 'MapVirtualKey', %w(i i), 'i')

# http://msdn.microsoft.com/en-us/library/windows/desktop/ms646310(v=vs.85).aspx
SendInput = Win32API.new("user32", "SendInput", %w(i p i), 'i')

# http://msdn.microsoft.com/en-us/library/windows/desktop/ms646270(v=vs.85).aspx
# http://msdn.microsoft.com/en-us/library/windows/desktop/ms646271(v=vs.85).aspx
INPUT_KEYBOARD = 1
KEYEVENTF_UNICODE = 0x0004
KEYEVENTF_KEYUP = 2
# Defined costant for Shift & Ctrl
# Add here the other special key you need
VK_SHIFT = 0x10
VK_CONTROL = 0x11

# Perform the operation hit for the specified key on the keyboard.
# Vkey Specifies an array of key code of the key that hit at the same time.
# For example, if you want to enter the t (lower case)
# keys_send (['T'])
# If you want to enter the T (upper case)
# keys_send ([VK_SHIFT, 'T'])

def keys_send(keys)
# convert key to integer unicode
key_conv= keys.map{|ikeys|
         case ikeys
           when String
           ikeys.unpack('U')[0]
           else
           ikeys
           end   }

wscans = key_conv.map{|vkey| MapVirtualKey.call(vkey, 0)}      
vkeywscan = key_conv.zip(wscans)
  
keydowns = vkeywscan.map{|vkey, wscan|
         [INPUT_KEYBOARD, vkey, wscan, 0, 0, 0, 0, 0].pack('ISSIIIII')
         }
keyups = vkeywscan.map{|vkey, wscan| 
         [INPUT_KEYBOARD, vkey, wscan, KEYEVENTF_UNICODE|KEYEVENTF_KEYUP, 0, 0, 0, 0].pack('ISSIIIII')
         }.reverse
  
SendInput.call(keys.length*2, keydowns.join('')+keyups.join(''), keydowns[0].length)
end

 
def event i
   keys_send([VK_SHIFT,'K'])
end