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Opposite of OLE Control "InsertFile" method
  1. Issue
  2.  OLE
0 Votes
  1. Dan Harrel
  2. PowerBuilder
  3. Wednesday, 31 January 2018 03:38 PM UTC

We use the olecontrol.insertFile (...) method to populate an olecontrol object with a file system document - for example, "foo.xlsx". 

How can we now extract the document out of the olecontrol, and write it back into a file system document? 

We know we cannot do the following, at least for complex documents such as XLSX spreadsheets:

  blob    blob_objectData
  int     i_rc, i_file
  long    l_rc

  i_rc = ole_1.insertFile ("C:\temp\foo1.xlsx")

  blob_objectData = ole_1.objectdata

  i_file = fileOpen ("C:\temp\foo2.xlsx", StreamMode!, Write!, LockWrite!, Replace!)
  l_rc = filewriteEx (i_file, blob_objectData)
  i_rc = fileClose (i_file)

Basically we are looking for something that is conceptually an "olecontrol.extractFile (...)" method.  Does anyone have a suggestion on how to do this? 

The real-world problem we are trying to solve is as follows: Application users embed document files such as spreadsheets in our database.  How can we automate exporting these database-stored documents back into document files without having to activate each one interactively and performing a "Save As..."? 

Thanks!

help installing PowerServer Tookit in Old PB Version Powerbuilder IDE stops working during build of application
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