Re: GNATCOM interface with MS Excel, Word

["bubble" <bubble@riskm.com.tw>]

hi Rebecca:
this is sample code , I have test it in Offce 2003
I got only problem is the 3rd parameter in create method.
the default gnatcom for the 3rd is CLSCTX_ALL,
in most case,it work fine but in excel ,you must change 3rd parameter to 
CLSCTX_LOCAL_SERVER.
DO NOT USE GANTCOM 's DEFAULT VALUE





with Excel11.Workbooks_Interface;
with Excel11.uWorkbook_interface;
with Excel11.Application_Interface;
with Excel11.uApplication_Interface;
with Excel11.Sheets_Interface;



with Gnatcom.Initialize;
with Gnatcom.types;
with gnatcom.variant;

with gnatcom.dispinterface;

with Interfaces.C;
use Interfaces.C;

procedure TestExcel is

   app : Excel11.uApplication_Interface.uApplication_Type;
   wbs : Excel11.Workbooks_Interface.Workbooks_Type;
   wb :  Excel11.uWorkbook_interface.uWorkBook_type;
   sheets:Excel11.Sheets_Interface.Sheets_Type;
   sheet:gnatcom.dispinterface.dispinterface_type;
   cellRange:gnatcom.dispinterface.dispinterface_type;


   use Excel11;
   use gnatcom.types;
   use gnatcom;
begin
   Gnatcom.Initialize.Initialize_COM;

   uApplication_Interface.create(
               app,
               "Excel.Application",
               CLSCTX_LOCAL_SERVER);


   uApplication_Interface.Put_Visible(
                app,
                0,
                VARIANT_BOOL_TRUE);

   Workbooks_Interface.Attach(
               wbs,
               uApplication_Interface.Get_Workbooks(app)
               );

   uWorkbook_interface.Attach(wb,
                 Workbooks_Interface.Add(this=>wbs,
                             lcid=>0)
                );

   Sheets_Interface.Attach(sheets,
               uWorkbook_interface.Get_Worksheets(this=>wb)
               );

   dispinterface.Attach(
             sheet,
             Sheets_Interface.Add(this=>sheets,lcid=>0)
             );

  declare
   retValue:gnatcom.types.variant;
   a1:dispinterface.Parameter_Array:= (
                  1=> gnatcom.variant.To_Variant("A1")
                  );
  begin
   retValue :=dispinterface.Get(sheet,"Range",a1);
   dispinterface.attach(
             cellrange,
             gnatcom.variant.To_Pointer_To_IDispatch(retValue)
             );
  end;

  dispinterface.put(
           cellrange,
           "value",
           gnatcom.variant.To_VARIANT("ada call excel")
           );
 Gnatcom.Initialize.uninitialize_COM;

end testExcel;