namespace FEWindowSelectionFrameTest
{
    public partial class MainWindow : System.Windows.Window
    {
        [System.Runtime.InteropServices.DllImport("user32.dll", SetLastError = true, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
        static extern int GetWindowTextLength(System.IntPtr hWnd);
        [System.Runtime.InteropServices.DllImport("user32.dll", CharSet = System.Runtime.InteropServices.CharSet.Auto, SetLastError = true)]
        static extern int GetWindowText(System.IntPtr hWnd, System.Text.StringBuilder lpString, int nMaxCount);

        FreeEcho.FEWindowSelectionFrame.WindowSelectionFrame f_window_selection_frame = null;

        public MainWindow()
        {
            try
            {
                InitializeComponent();

                button_window_selection.PreviewMouseDown += Button_window_selection_PreviewMouseDown;
                button_window_selection.PreviewMouseUp += Button_window_selection_PreviewMouseUp;
            }
            catch
            {
            }
        }

        private void Button_window_selection_PreviewMouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            try
            {
                f_window_selection_frame = new FreeEcho.FEWindowSelectionFrame.WindowSelectionFrame();
                f_window_selection_frame.StartWindowSelection();
            }
            catch
            {
            }
        }

        private void Button_window_selection_PreviewMouseUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            try
            {
                f_window_selection_frame.StopWindowSelection();

                System.Text.StringBuilder string_data = new System.Text.StringBuilder(GetWindowTextLength(f_window_selection_frame.SelectionHwnd) + 1);
                GetWindowText(f_window_selection_frame.SelectionHwnd, string_data, string_data.Capacity);
                System.Diagnostics.Debug.WriteLine(string_data.ToString());
            }
            catch
            {
            }
        }
    }
}