I have an application that uses ShellExecute and Printto to Batch print documents.  The program needs to be very specific and print them in order.  The issue I am having is the order.  When I send the batch print, based on what native application is opening the file, they go out of order.  For example, it takes slightly longer to open PDF than a word doc, so word will print 3-4 in the time that it takes adobe to open and print.  

I have found some examples in visual studio of how to handle this by waiting on a return code that the print has been sent to the queue, I am struggling getting the process to return the handle to tell me it is done.

Here is the Visual Studio example:

/////////////////////////////////////////////////////////////////
      SHELLEXECUTEINFO ShellInfo;
      ZeroMemory( & ShellInfo, sizeof( SHELLEXECUTEINFO ) );
      ShellInfo.cbSize = sizeof( SHELLEXECUTEINFO );
      ShellInfo.lpVerb = TEXT( "printto" );
      ShellInfo.lpFile = pszFile;
      ShellInfo.lpParameters = szPrinter;
      ShellInfo.nShow = SW_SHOWMINIMIZED;
      ShellInfo.fMask = SEE_MASK_FLAG_DDEWAIT
                                  | SEE_MASK_NOCLOSEPROCESS ;
      if( ShellExecuteEx( & ShellInfo ) )
      {
         if( (int) ShellInfo.hInstApp > 32 )
         {
            if( ShellInfo.hProcess )
            {
               DWORD dwExitCode = STILL_ACTIVE;
               while( dwExitCode == STILL_ACTIVE )
               {
                  if( ! GetExitCodeProcess( ShellInfo.hProcess, & dwExitCode ) )
                  {
                     dwExitCode = 0;
                  }
               }
               CloseHandle( ShellInfo.hProcess );
            }
         }
      }
/////////////////////////////////////////////////////////////////

And this is my PowerBuilder code:

I have defined this Local External Function:

FUNCTION long ShellExecute( ulong hWnd, string Operation, string lpFile, string  lpParameters, string lpDirectory, int nShowCmd ) LIBRARY "shell32.dll" ALIAS FOR "ShellExecuteW"

Here is a copy of my script: