Home » Tip Bank

Language: C#
Expertise: Intermediate

Dec 13, 2004

The following code draws a rectangle around the toolbar button when a user moves their mouse over it. This looks better if the Appearance property of the toolbar is set to Flat. Instead of refreshing the toolbar, which makes it flicker, a new rectangle the color of the button is drawn to make sure only one button at a time has different border:

private void ToolBar_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
	Point p = new Point(MousePosition.X,MousePosition.Y);
	p = ToolBar.PointToClient(p);
	Graphics g = ToolBar.CreateGraphics();
	foreach (ToolBarButton tb in ToolBar.Buttons)
	{
	   if (tb.Rectangle.Contains(p))
	   {
	     g.DrawRectangle(new Pen(new SolidBrush Color.SteelBlue),1.5F),tb.Rectangle);
 				
   	   }else{
	     g.DrawRectangle(new Pen(new SolidBrush (Color.LightGray),1.5F),tb.Rectangle);
 				   }
	}
	g.Dispose();
}