将文本粘贴到前景窗口

Question

我希望我的程序将文本粘贴到前景窗口（记事本，单词，openoffice甚至Web浏览器）的插入位置。

[DllImport("user32.dll")]
private static extern IntPtr GetForegroundWindow();

[DllImport("user32.dll")]
static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, IntPtr lParam);

private const int WM_PASTE = 0x0302;

private void listBox_Data_DoubleClick(object sender, EventArgs e)
{
    this.WindowState = FormWindowState.Minimized;
    Clipboard.SetData(DataFormats.Text, "It works!");
    IntPtr hWnd = GetForegroundWindow();
    SendMessage(hWnd, WM_PASTE, IntPtr.Zero, IntPtr.Zero);
}

所以，到目前为止，我得到了这个，但它没有用。