public PaintBoard(ButtonMenu buttonMenu)
{
InitializeComponent();
this.buttonMenu = buttonMenu;
this.buttonMenu.paintBoard = this;
currentPoint = new Point();
paintingCanvas.Background = System.Windows.Media.Brushes.White;
}
public MainWindow()
{
InitializeComponent();
ButtonMenu buttonMenu = new ButtonMenu();
PaintBoard paintBoard = new PaintBoard(buttonMenu);
btnMenu.Children.Add(buttonMenu);
paintingCanvas.Children.Add(paintBoard);
}