Description
We have to implement the default processing of shell folder view callback, as many as possible, to improve the shell view interface.
See "dll/win32/shell32/CDefView.cpp". CDefView::_DoFolderViewCB is a helper function to call the callback function, that calls MessageSFVCB method of CDefView::m_pShellFolderViewCB object.
The documented shell folder view callback information will be found in the following page:
IShellFolderViewCB::MessageSFVCB
https://msdn.microsoft.com/en-us/library/windows/desktop/bb774968.aspx