Rectangle::IsEmpty Property

 

Tests whether all numeric properties of this Rectangle have values of zero.

Namespace:   System.Drawing
Assembly:  System.Drawing (in System.Drawing.dll)

public:
[BrowsableAttribute(false)]
property bool IsEmpty {
	bool get();
}

Property Value

Type: System::Boolean

This property returns true if the Width, Height, X, and Y properties of this Rectangle all have values of zero; otherwise, false.

The following code example demonstrates the Intersect, IsEmpty and the IntersectsWith members. This example should be used with a Windows Form. Paste this code into a form and call this method when handling the form's Paint event, passing e as PaintEventArgs.

private:
   void InstanceRectangleIntersection( PaintEventArgs^ e )
   {
      Rectangle rectangle1 = Rectangle(50,50,200,100);
      Rectangle rectangle2 = Rectangle(70,20,100,200);
      e->Graphics->DrawRectangle( Pens::Black, rectangle1 );
      e->Graphics->DrawRectangle( Pens::Red, rectangle2 );
      if ( rectangle1.IntersectsWith( rectangle2 ) )
      {
         rectangle1.Intersect( rectangle2 );
         if (  !rectangle1.IsEmpty )
         {
            e->Graphics->FillRectangle( Brushes::Green, rectangle1 );
         }
      }
   }

.NET Framework
Available since 1.1
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