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CDC Class
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CDC::RectVisible

Visual Studio 2012

Determines whether any part of the given rectangle lies within the clipping region of the display context.

Copy 
virtual BOOL RectVisible( 
   LPCRECT lpRect  
) const;
lpRect

Points to a RECT structure or a CRect object that contains the logical coordinates of the specified rectangle.

Nonzero if any portion of the given rectangle lies within the clipping region; otherwise 0.

Header: afxwin.h

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