I have various VFP/VB DLL's that I use regulary.

I trap errors internally and store a negative value
relative to the error to a propery called nReadyState,
then set a property called lErrorOccured to .T.

If lErrorOccured is True, then nReadyState will contain
the error number for the error, otherwise nReadyState will
be zero.

Some of these DLL's use other DLL's, and sometimes they
are used in applications.

The question is this:

When an error does occur under this scenerio, what's the
best way to handle it and pass it to the applicaion?

Also, what should the application do?

Thanks