RectF.Intersect(const RectF&) method

[アーティクル]
03/07/2012

Applies to: desktop apps only

The RectF::Intersect method replaces this rectangle with the intersection of itself and another rectangle.

Syntax

BOOL Intersect(
  [in]  const RectF& rect
);

Parameters

rect [in]
Type: const RectF&

Reference to a rectangle that will be intersected with this rectangle.

Return value

Type:

Type: BOOL

If the intersection of the two rectangles is not empty, this method returns TRUE; otherwise, it returns FALSE.

Examples

The following example creates three RectF objects, draws the first two rectangles, and then draws the third rectangle that indicates the intersection of the first two rectangles.

VOID Example_IntersectRectF(HDC hdc)
{
   Graphics graphics(hdc);

   // Create two RectF objects.
   RectF rect1(50, 50, 200, 100);
   RectF rect2(70, 20, 100, 200);

   // Draw rect1 and rect2 with a thin black pen.
   Pen blackPen(Color(255, 0, 0, 0), 1);
   graphics.DrawRectangle(&blackPen, rect1);
   graphics.DrawRectangle(&blackPen, rect2);

   // Form the intersection of rect1 and rect2, and store
   // the result in rect1.
   rect1.Intersect(rect2);

   // Draw the new rect1 with a thick green pen.
   Pen greenPen(Color(255, 0, 255, 0), 7);
   graphics.DrawRectangle(&greenPen, rect1);
}

Requirements

Minimum supported client	Windows XP, Windows 2000 Professional
Minimum supported server	Windows 2000 Server
Product	GDI+ 1.0
Header	Gdiplustypes.h (include Gdiplus.h)
Library	Gdiplus.lib
DLL	Gdiplus.dll

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