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 BOOL LoadState(
LPCTSTR lpszProfileName = NULL,
UINT uiID = (UINT) -1
);
Parameters
[in] lpszProfileName
[in] uiID
Requirements
Header: afxmultipaneframewnd.h