[C++] DgnModel timestamp

Hi Jon Summers,

FWIW. If you truly need more granularity than e.g. The DgnFile GetDocumentProperty (see note below), then the only other feasible work-around could be to use the Microsoft IStorage::Stat API that inherently provides updates to the underlying STATSTG FILETIME struct properties for: Created (ctime), Modified (mtime), and Access (atime) times.

NOTE: GetDocumentProperty in the MDL V8 SDK provided a listing of propIDP macros (like: PIDSI_LASTSAVE_DTM; in mdl\include\docproperty.h) that continue to use the same name/values (see MicroStationAPI.chm Help topic for code snip), though are not currently published in the MicroStation CONNECT SDK.  I will see if we can get these added.  MicroStation V8's docproperty.h is attached for convenience. I suggest implementing only required macros to keep compilation and compatibility issues to an absolute minimum.https://communities.bentley.com/cfs-file/__key/communityserver-discussions-components-files/343173/docproperty.h

HTH,
Bob

Robert Hook said:

the only other feasible work-around could be to use the Microsoft IStorage::Stat API that inherently provides updates to the underlying STATSTG FILETIME struct properties for: Created (ctime), Modified (mtime), and Access (atime) times.

Hi Jon,

At this time the only feasible work-around is to use the Microsoft APIs directly to obtain model date time information; until a public API may become available.  If you can provide some insight into the workflow/need you are trying to achieve I could add this to the enhancement which may help accelerate the priority behind it.

Bob

Robert Hook said:

the only other feasible work-around could be to use the Microsoft IStorage::Stat API that inherently provides updates to the underlying STATSTG FILETIME struct properties for: Created (ctime), Modified (mtime), and Access (atime) times.

Hi Jon,

At this time the only feasible work-around is to use the Microsoft APIs directly to obtain model date time information; until a public API may become available.  If you can provide some insight into the workflow/need you are trying to achieve I could add this to the enhancement which may help accelerate the priority behind it.

Bob

Robert Hook said:

use the Microsoft APIs directly to obtain model date time information

I don't understand.  What Microsoft API can peek inside a DGN file to view a DGN model's properties?  If a lastModified property doesn't exist, using a Microsoft API won't conjure it from nowhere.

Robert Hook said:

provide some insight into the workflow/need

What's not clear about Carl Myhill's response above? The question arose because users have asked to see a creation date column in the MicroStation Models dialog.

Because a DGN model doesn't have a timestamp, that wish cannot be fulfulled.  If a DGN model class had a lastModified field, just like a DGN element, that would be easy to solve.