private void MainForm_Loaded(object sender, RoutedEventArgs e)
{
DrawArea.InitializeHelperObjects();
DrawArea.Initialize();
DrawArea.DrawFilled = true;
DrawArea.LineWidth = 2;
DrawArea.PenType = TypeOfPen.PenType.Normal;
DrawArea.IsRotated = false;
btnFilledSolid.Content = "C";
chkFillBackGround.IsChecked = false;
lsbForeground.SelectedColor = Colors.Black;
lsbBackground.SelectedColor = Colors.CadetBlue;
cbxNormal.IsChecked = true;
ExpFilledCustom.IsEnabled = false;
txtRotate.Text = "90";
btnUndo.IsEnabled = false;
btnRedo.IsEnabled = false;
btnPaste.IsEnabled = false;
txtRotate.IsEnabled = false;
btnRotateLeft.IsEnabled = false;
btnRotateRight.IsEnabled = false;
menuResetRotate.IsEnabled = false;
btnUndo.Foreground = new SolidColorBrush(Colors.Black);
btnRedo.Foreground = new SolidColorBrush(Colors.Black);
btnPaste.Foreground = new SolidColorBrush(Colors.Black);
btnRotateLeft.Foreground = new SolidColorBrush(Colors.Black);
btnRotateRight.Foreground = new SolidColorBrush(Colors.Black);
}
