This topic is included for completeness. For more detail see the source code located in the VC\atlmfc\src\mfc folder of your Visual Studio installation.
virtual void OnSizeParent(
CRect& rectAvailable,
UINT nSide,
BOOL bExpand,
int nOffset
);
Parameters
[in] rectAvailable
[in] nSide
[in] bExpand
[in] nOffset
Requirements
Header: afxdocksite.h