Region.Xor(const Rect) method

Applies to: desktop apps only

The Region::Xor method updates this region to the nonintersecting portions of itself and the specified rectangle's interior.

Syntax

Status Xor(
  [in, ref]  const Rect &rect
);

Parameters

• rect [in, ref]
  Type: const Rect

  Reference to a rectangle to use to update this region.

Return value

Type:

Type: Status****

If the method succeeds, it returns Ok, which is an element of the Status enumeration.

If the method fails, it returns one of the other elements of the Status enumeration.

Examples

The following example creates a region from a path and then uses a rectangle to update the region.

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

  Point points[] = {
      Point(110, 20),
      Point(120, 30),
      Point(100, 60),
      Point(120, 70),
      Point(150, 60),
      Point(140, 10)};

   Rect rect(65, 15, 70, 45);
   GraphicsPath path;
   SolidBrush solidBrush(Color(255, 255, 0, 0));

   path.AddClosedCurve(points, 6);

   // Create a region from a path.
   Region pathRegion(&path);

   // Perform an exclusive OR operation on the region and a rectangle.
   pathRegion.Xor(rect);

   graphics.FillRegion(&solidBrush, &pathRegion);
}

Requirements

See also

Region

Rect

Status

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Build date: 3/6/2012