CRect::CenterPoint

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CPointCenterPoint()const;

Return Value

A CPoint object that is the centerpoint of CRect.

Remarks

Calculates the centerpoint of CRect by adding the left and right values and dividing by two, and adding the top and bottom values and dividing by two.

Example

// Code from this OnDraw() implementation can be pasted into your own application
// to draw lines that would look like a letter "Y" within your view.

void CYourView::OnDraw(CDC* pDC)
{
   // get the size and position of the client area of
   // your window

   CRect rect;
   GetWindowRect(&rect);

   // Move the current pen to the top left of the window. We call the
   // TopLeft() member of CRect here and it returns a CPoint object we
   // pass to the override of CDC::MoveTo() that accepts a CPoint.

   pDC->MoveTo(rect.TopLeft());

   // Draw a line from the top left to the center of the window.
   // CenterPoint() gives us the middle point of the window as a
   // CPoint, and since CDC::LineTo() has an override that accepts a
   // CPoint, we can just pass it along.

   pDC->LineTo(rect.CenterPoint());

   // Now, draw a line to the top right of the window. There's no
   // CRect member which returns a CPoint for the top right of the
   // window, so we'll reference the CPoint members directly and call
   // the CDC::LineTo() override which takes two integers.

   pDC->LineTo(rect.right, rect.top);

   // The top part of the "Y" is drawn. Now, we'll draw the stem. We
   // start from the center point.

   pDC->MoveTo(rect.CenterPoint());

   // and then draw to the middle of the bottom edge of the window.
   // We'll get the x-coordinate from the x member of the CPoint
   // returned by CenterPoint(), and the y value comes directly from
   // the rect.

   pDC->LineTo(rect.CenterPoint().x, rect.bottom);
}

CRect Overview |  Class Members |  Hierarchy Chart

See Also   CRect::Width, CRect::Height, CRect::Size, CRect::TopLeft, CRect::BottomRight, CRect::IsRectNull, CPoint