First off, a big thanks to Lex Trotman and Frank Lanitz. I've now fixed the help, and settings problems in my plugin, and I think that I've figured out what the problem is when I try to implement remembering of fold states.
When I watch what happens in my ln_document_open function (which is called when the "document-open" callback is activated in the plugin on opening a file), as I iterate through the lines for some reason the SC_FOLDLEVELHEADERFLAG flag is not set for any lines including lines where there should be folds. I use scintilla_send_message(sci,SCI_GETFOLDLEVEL,iLineNumber,0) to get the fold level. For some reason, if there is a call to dialogs_show_msgbox in the document-open callback function, then SC_FOLDLEVELHEADERFLAG is set appropriately.
Is this a bug? Or does the editor not normally set fold flags until later, and the dialogs_show_msgbox simply forces scintilla to display (and so set fold flags) earlier than it normally would? If so, is there a function I can call that will do this without having to display a message box, or is there another way to activate my code after the fold flags have been calculated?
William Fraser