Would it be a total hack to ask QT/the OS if the file is open for use, and only update the tag if it isn't? That would be a way around all of the corner cases you mentioned. Here's one option I found: http://doc.trolltech.com/solutions/3/qtlockedfile/qtlockedfile.html
Would it be a total hack to ask QT/the OS if the file is open for use, and only update the tag if it isn't? That would be a way around all of the corner cases you mentioned. Here's one option I found: http:// doc.trolltech. com/solutions/ 3/qtlockedfile/ qtlockedfile. html