I'm trying to use the IShellFolder2.GetDefaultColumn function to get the default sort column that is recommended for a specific shell folder. But unfortunately, the function always fails with E_NOTIMPL
(HResult -2147467263).
The method call looks like this:
hr := ishellfolder2.GetDefaultColumn(0, sortColumn, displayColumn);
The IShellFolder object is queried by using
SHBindToParent
or
ShellFolder.BindToObject
afterwards it's casted to an IShellFolder2
.
The object is valid because it's successfully used for e.g. querying GetDetailsOf.
Is there anything I`m missing?
Thank you and best regards
Answer from Microsoft:
The reason why IShellFolder2.GetDefaultColumn always returns E_NOTIMPL is following: Almost no shell folder implements this method. This means that this folder does not want to overwrite the defaut sort order. If this method succeeds, it returns a custom sort column that differs from the default sort column.