OnScriptMenu: the index 'GetFileName' does not exist

[Anbang24]

I write a piece of script to get the filename in the active editor as following:

Code

        local edman = GetEditorManager();
        if (IsNull(edman)) 
       {
            ShowError(_("Could not query the Editor manager. Cannot continue."));
            return 0;
        }
        local editor = edman.GetActiveEditor();
        if (IsNull(editor))  
       {
            ShowError(_("No active editor. Cannot continue."));
            return 0;
        }
        local fname = editor.GetFileName();  //??
        ShowInfo(fname);

It is very simple, however, I got the following message in running:
    OnScriptMenu:the index 'GetFileName' does not exist

I carefully read the Scripting commands (https://wiki.codeblocks.org/index.php/Scripting_commands),
but still don't understand why this happens. Does the command deprecated?

[Miguel Gimenez]

Scripts are case-sensitive:

Code

wxString 	GetFilename

[Anbang24]

Thanks!