Reading Text out of a Textbox using user32.dll

D

decrypt

Junior Contributor
Joined
Oct 6, 2003
Messages
216
I'm trying to read text out of google talks chat window, but I can't seem to figure out how. This is my current code:

Code: 
[DllImport("user32.dll",EntryPoint="FindWindow")]
		public static extern int FindWindow(string _ClassName, string _WindowName);
		[DllImport("user32.dll",EntryPoint="FindWindowEx")]
		public static extern int FindWindowEx(int hWnd1, int hWnd2, string lpsz1, int lpsz2);
		[DllImport("user32.dll",EntryPoint="SendMessage")]
		public static extern int SendMessage(int _WindowHandler, int _WM_USER, int _data, int _id);
		[DllImport("user32.dll",EntryPoint="SendMessage")]
		public static extern int SendMessage(int _WindowHandler, int _WM_USER, int _data, string _id);
		[DllImport("User32.dll")]
		public static extern bool SetForegroundWindow(int hWnd);

public void GetText()
		{
			int Handler = FindWindow("Chat View",null);
			if (Handler > 0)
			{
				int Alt = FindWindowEx(Handler, 0, "AtlAxWin71", 0);
				if(Alt > 0)
				{
					int IES = FindWindowEx(Alt, 0, "Internet Explorer_Server", 0);
					if(IES > 0)
					{
						MessageBox.Show(SendMessage(IES, (int) WMDefs.WM_GETTEXTLENGTH, 0, 0).ToString());
						SetForegroundWindow(Handler);
					}
					else
					{
						MessageBox.Show("Cannot find IES");
					}
				}
				else
				{
					MessageBox.Show("Cannot find alt");
				}
			}
			else
			{
				MessageBox.Show("A Google Talk chat window is not open","Error",MessageBoxButtons.OK,MessageBoxIcon.Error);
			}
		}

The text length is 0. Is there a way to get the text out of the chat window?
 
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