Indicates whether the window specified by pWnd is a child window or other direct descendant of CWnd.

BOOL IsChild( 
   const CWnd* pWnd  
) const;


Identifies the window to be tested.

Specifies the outcome of the function. The value is nonzero if the window identified by pWnd is a child window of CWnd; otherwise 0.

A child window is the direct descendant of CWnd if the CWnd object is in the chain of parent windows that leads from the original pop-up window to the child window.

Header: afxwin.h