Sets CRect equal to the union of CRect and rect.
void operator|=( 
   const RECT& rect  
) throw( );
Parameters
- rect
 Contains a CRect or RECT.
Remarks
The union is the smallest rectangle that contains both source rectangles.
备注
Both of the rectangles must be normalized or this function may fail. You can call NormalizeRect to normalize the rectangles before calling this function.
Example
CRect   rect1(100,   0, 200, 300);
CRect   rect2( 0, 100, 300, 200);
rect1 |= rect2;
CRect   rectResult(0, 0, 300, 300);
ASSERT(rectResult == rect1);   
Requirements
Header: atltypes.h