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January 3rd, 2009, 04:41 AM
#1
Send Key Strokes to a specific window handle.
Hi,
i wanna do a bot program for a game.This program send key strokes to Game Application.But i got a problem.I only wanna send key to Game Application Window Handle not another active window.I write a class for this but i havent get worked it.Its sending keys only notepad not to game or any other window.Can ya help me for this ? Iam sending ya codes below ; and tell me where is my problem. thanx for ur help.
class SendKeySample
{
private static Int32 WM_KEYDOWN = 0x100;
private static Int32 WM_KEYUP = 0x101;
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("user32.dll", SetLastError = true)]
static extern bool PostMessage(IntPtr hWnd, int Msg, System.Windows.Forms.Keys wParam, int lParam);
[DllImport("user32.dll", SetLastError = true)]
private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
public static IntPtr FindWindow(string windowName)
{
foreach (System.Diagnostics.Process p in System.Diagnostics.Process.GetProcesses())
{
if (p.MainWindowHandle != IntPtr.Zero && p.MainWindowTitle.ToLower() == windowName.ToLower())
return p.MainWindowHandle;
}
return IntPtr.Zero;
}
public static IntPtr FindWindow(IntPtr parent, string childClassName)
{
return FindWindowEx(parent, IntPtr.Zero, childClassName, string.Empty);
}
public static void SendKey(IntPtr hWnd, System.Windows.Forms.Keys key)
{
PostMessage(hWnd, WM_KEYDOWN, key, 0);
}
}
Calling Code ;
var hWnd = SendKeySample.FindWindow("Untitled - Notepad");
var editBox = SendKeySample.FindWindow(hWnd, "edit");
SendKeySample.SendKey(editBox, Keys.A);
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