How to automate a keystroke using Win32 and Ruby?

Question

I wonder if anyone knows how to use Win32 to automate a keystroke using Ruby?

Answer 1

I recommend checking out Ian Dees' Scripted GUI Testing With Ruby. This example of sending keystrokes to a Windows program comes from the book's 2nd chapter. The supporting script is available here.

# START:typing
"this is some text".upcase.each_byte do |b| #<callout id="co.upcase"/>
  keybd_event.call b, 0, KEYEVENTF_KEYDOWN, 0
  sleep 0.05
  keybd_event.call b, 0, KEYEVENTF_KEYUP, 0
  sleep 0.05
end
# END:typing

I highly-recommend this book for anyone doing platform-specific, or cross-platform GUI automation and testing.