From: Shashank Date <shanko_date@...>
Date: 2003-05-10T01:34:33+09:00
Subject: Re: SendMessage Win32API function

# On Win 2K: ruby 1.6.8 (2002-12-24) [i586-mswin32]
# Open a Notepad window BEFORE running this script

require "Win32API"

# Now find the window handle of this session
findWindow = Win32API.new("user32", 
                          "FindWindow", 
                          ['P','P'], 'L')
hWnd = findWindow.call(0,"Untitled - Notepad")
puts hWnd if $DEBUG
raise 'open a "Notepad" window and then try again' if 
                                           (hWnd <= 0)

# And change the title
WM_SETTEXT=0xC
sendMessage = Win32API.new("user32", "SendMessage",
                            ['L','L','L','P'], 'L')
b = sendMessage.call(hWnd, WM_SETTEXT,-1,"Hello
There")
puts b  if $DEBUG


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