Rectangle::Intersect Method (Rectangle, Rectangle)

 

Returns a third Rectangle structure that represents the intersection of two other Rectangle structures. If there is no intersection, an empty Rectangle is returned.

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

public:
static Rectangle Intersect(
	Rectangle a,
	Rectangle b
)

Parameters

a
Type: System.Drawing::Rectangle

A rectangle to intersect.

b
Type: System.Drawing::Rectangle

A rectangle to intersect.

Return Value

Type: System.Drawing::Rectangle

A Rectangle that represents the intersection of a and b.

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 StaticRectangleIntersection( 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 ) )
      {
         Rectangle rectangle3 = Rectangle::Intersect( rectangle1, rectangle2 );
         if (  !rectangle3.IsEmpty )
         {
            e->Graphics->FillRectangle( Brushes::Green, rectangle3 );
         }
      }
   }

.NET Framework
Available since 1.1
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