从ProtectedView“启用编辑”时，Excel的VBA ActiveWorkbook“无”

I have a VBA macro which is called from a spreadsheet function (user defined function, UDF). When the spreadsheet is downloaded from the internet and the user has set "Trust Center" settings accordingly, the spreadsheet will open in so the called "Protected View". The function will not be called. A button "Enable Editing" is shown. If the button is pressed, the spreadsheet is "trusted" and reopened normally, starting calculation, and hence calling the user defined function.I have a VBA macro which is called from a sprea