void startMonitoring() const;
///
bool monitoring() const;
- /** Returns the check checksum of filename() so that, for example, you can
- * ascertain whether to output a new PostScript version of the file
- * for a LaTeX run.
- */
- unsigned long checksum() const;
+ ///
+ void checkModifiedAsync() const;
/// How far have we got in loading the image?
ImageStatus status() const;