Building dynamic dialogs for Acrobat.

Question

I am attempting to figure out how to build dynamic dialogs within Acrobat using Javascript.
I am attempting to write a generalized PDF page splitter.  The user selects a PDF document, and then the script analyzes the open document and determines that there are N pages in the document.  I am going to run through the document and make each page its own PDF.  Each page will be considered a certain kind of page, for example, Cover, Article, Ad, etc.  and the type of page it is will affect the naming convention I use when making the new, one-page file.  For example, let's say that pages 36, 37 and 38 are page, ad and article, respectively.  Then the names I will be using for each output file will be as follows:
P12345Pg_036.pdf
P12345Ad_037.pdf
P12345Ar_038.pdf
But there is no way for my code to actually look at a given page and decide that it is page, article, ad, or one of four cover types, etc.  So I want to build a dialog that looks something like this (assume a O is meant to be a radio button):
Page          Pagetype
1                  O Page      O Inner cover Front         O  Outer cover Front     O Ad           O   Article
2             
O Page 
O Inner cover Front    
O  Outer cover Front
O Ad      
O   Article
3             
O Page 
O Inner cover Front    
O  Outer cover Front
O Ad      
O   Article
4             
O Page 
O Inner cover Front    
O  Outer cover Front
O Ad      
O   Article
N             
O Page 
O Inner cover Front    
O  Outer cover Front
O Ad      
O   Article
This means a dynamic dialog.
I have looked at the Acrobat API and determined that defining a dialog looks something like this:
var DialogABC = {
                                   initialize: function(dialog){},
                                   commit : function(dialog){},
                                   description:{}
app.execDialog(DialogABC)
What I do not know how to do is create the dialog specification on the fly.  Do I treat it as a string or is there some other way of making this happen?  HOw can I make a dynamic description that allows for a variable number of rows?
Please let me know if you have any thoughts.  A good reference or example would serve just as well.
TIA!
John

Answer 1

Use this code to get all components of internal table.
Then build fieldcatlog.
DATA: tab_return type abap_compdescr_tab,
          components like line of tab_return.
perform get_int_table_fields using    <fs_it> changing  tab_return.
loop at tab_return into components.
  wa_fldcat-fieldname  = components-name.               "Field Name
  wa_fldcat-scrtext_m  = components-name.              "Column Heading
  wa_fldcat-inttype    = components-type_kind.     "Data Type
  wa_fldcat-intlen      = components-length.          "Data Lenght
  wa_fldcat-decimals = components-decimals.     "Data Decimal Places
append wa_fldcat to it_fldcat.
endloop.
form get_int_table_fields  using    t_data type any table
                            changing t_return type abap_compdescr_tab.
   data:
   oref_table type ref to cl_abap_tabledescr,
   oref_struc type ref to cl_abap_structdescr,
   oref_error type ref to cx_root,
   text type string.
*Get the description of data object type
   try.
       oref_table ?=
       cl_abap_tabledescr=>describe_by_data( t_data ).
     catch cx_root into oref_error.
       text = oref_error->get_text( ).
       write: / text.
       exit.
   endtry.
*Get the line type
   try.
       oref_struc ?= oref_table->get_table_line_type( ).
     catch cx_root into oref_error.
       text = oref_error->get_text( ).
       write: / text.
       exit.
   endtry.
   append lines of oref_struc->components to t_return.
endform.
Regards
Sreekanth