wxHexEditor should detect changes being made by other applications and reload (or at leat inquire to do so) automatically.
Just want to say hi. :)
Recent library of wxWidgets makes implement this feature easy.
Takes little time but;
Implemented @ svn r418
Note that, MacOSX support is not complete for file detection changes. So this feature will not work on mac.
Just for files. I don't know if it's working on block devices, specially on windows.
RAM files cannot updated with this code...