PB Syntax for Programmable OLE Objects (Excel)

Question

If I want to manipulate Excel (open Excel file, set value to cell, etc.), I need to write syntax like these (example):
  lole_excel = create oleobject
  lole_excel.ConnectToNewObject("excel.application")
  lole_excel.WorkBooks.Open("C:\some_path_to\sample.xls")
  lole_workbook = lole_excel.application.workbooks(1)
  lole_worksheet = lole_workbook.worksheets(1)
  // Set the cell value
  lole_worksheet.cells(1,11).value = "Some value" //it is cells(line, column)
  // Save
  lole_workbook.save()
  // Quit
  lole_excel.application.quit()
  lole_excel.DisconnectObject()
  destroy lole_Excel
The question is, where should I look for complete reference of properties and function to be used?
I mean, if I want to add/embed PDF file into Excel, what function should I use? What value to pass as parameter?
What PB syntax should I code to accomplish this? Where can I find complete document for these functions/properties?
Many thanks for your attention.

Answer 1

How can I know that I must use worksheets property of workbooks property of application property of oleobject?
That's dependant on understanding the object model for the application that you're trying to work with.  There's nothing PB documentation can really help with there.
There are a couple of sections of the Application Techniques manual that cover OLE Automation in depth:
Programmable OLE Objects
OLE Objects in Scripts
What you might find more useful in this regard though is an article I did for PBDJ, which was an excerpt from the PowerBuilder 9: Advanced Client/Server book.
What I discuss in there is how to use the object browser built into Microsoft Office products to understand the object model and how to use the functions and properties of the target application.