Question : DDE in Oracle forms

I'm trying to write data to excel from Oracle Form.

Everytjing works fine if I specify parameter  DDE.APP_MODE_NORMAL or DDE.APP_MODE_MAXIMIZED.
For DDE.APP_MODE_MINIMIZED I'm getting error DDE.DMLERR_NOTPROCESSED

Following is the code
-----------------------------------------------------------------------------------------------
 PROCEDURE p_load_excel IS
      appid PLS_INTEGER;
      convid PLS_INTEGER;
      docid PLS_INTEGER;
      i number := 0;
      filename varchar(150);
      rowcol1 varchar(15);
      rowcol2 varchar(15);
      v_product_name varchar2(75);
      rowcol3 varchar(75);
      rowcol4 varchar(15);
      rowcol5 varchar(15);
 
  v_field1    table0.field1%type;        
  v_field2    table1.folder_id%type;        
  v_field3    table2.field3%type;          
  v_field4    table3.field4%type;        
  v_product_id      table1.product_id%type;                  
  conv_established BOOLEAN := FALSE;
  CURSOR table_data_c IS
  SELECT s.field1, t.field2, p.field3, l.field4, product_id
  FROM table0 s,
       table1 t,
       table2 p,
       table3 l,
       table4 subpr
 WHERE (    (s.seq_nmbr = table.seq_nmbr)
        AND (t.seq_nmbr = p.seq_nmbr)
        AND (table.p_seq_nmbr = p.p_seq_nmbr)
        AND (p.p_seq_nmbr = l.p_seq_nmbr)
        AND (subpr.p_subtype_seq_nmbr = t.p_subtype_seq_nmbr)
        and s.p_subtype_code = :P_SUBTYPTE_CD
       );      
BEGIN

/* Start Excel */
/* This line assumes that Excel is in the directory C:\Program Files\Microsoft Office\Office\excel.exe */
host('del c:\test.xls', NO_SCREEN);
APPID := DDE.APP_BEGIN('C:\Program Files\Microsoft Office\Office\excel.exe',
DDE.APP_MODE_MINIMIZED);
--DDE.APP_MODE_NORMAL);
--DDE.APP_MODE_MAXIMIZED);

/* Establish a conversation with Excel.
   The following loop will not end until a conversation with Excel
has been established. Therefore, it can result in a endless loop,
so use with caution. */
WHILE NOT conv_established LOOP
BEGIN
convid := DDE.INITIATE('excel', 'system');
conv_established := TRUE;
EXCEPTION
WHEN DDE.DMLERR_NO_CONV_ESTABLISHED THEN
conv_established := FALSE;
END; -- loop
END LOOP;

/* Open Excel document */
filename := 'c:\test.xls';
DDE.EXECUTE(convid, '[Save.As("' || filename || '")]', 10000);
DDE.EXECUTE(convid, '[Open("C:\TEST.xls")]', 10000);

/* Initiate conversation with Excel document */
docid := DDE.INITIATE('excel', 'C:\TEST.xls');
/* process putting of data into an excel worksheet*/
i :=2;
open table_data_c;
loop
fetch table_data_c
into
 v_field1
,v_field2
,v_field3
,v_field4
,v_product_id;  
EXIT  WHEN table_data_c%NOTFOUND;                  

      DDE.POKE(docid, 'R1C1',Field1', DDE.CF_TEXT, 1000);
      DDE.POKE(docid, 'R1C2','Field2', DDE.CF_TEXT, 1000);
      DDE.POKE(docid, 'R1C3','Product Name', DDE.CF_TEXT, 1000);
      DDE.POKE(docid, 'R1C4','Field3', DDE.CF_TEXT, 1000);
      DDE.POKE(docid, 'R1C5','Field4', DDE.CF_TEXT, 1000);
      
      rowcol1 := 'R' || to_char(i) || 'C1';
      rowcol2 := 'R' || to_char(i) || 'C2';
      rowcol3 := 'R' || to_char(i) || 'C3';
      rowcol4 := 'R' || to_char(i) || 'C4';
      rowcol5 := 'R' || to_char(i) || 'C5';
      
      /* Begin transfer to Excel */
      v_field3 := nvl(v_field3,' ');
      v_field4   := nvl(v_field4,'  ');
      v_product_name   := substr(table_get_product_nm_f (v_product_id),1,75);
      DDE.POKE(docid, rowcol1,v_field1, DDE.CF_TEXT, 1000);
      DDE.POKE(docid, rowcol2,v_field2, DDE.CF_TEXT, 1000);
      DDE.POKE(docid, rowcol3,v_product_name, DDE.CF_TEXT, 1000);
      DDE.POKE(docid, rowcol4,v_field3, DDE.CF_TEXT, 1000);
      DDE.POKE(docid, rowcol5,v_field4, DDE.CF_TEXT, 1000);
      
      
      i := i + 1;
      PKG_MSG.SHOW_ERROR('A TRANSACTION ' || (i - 2) );
end loop;
PKG_MSG.SHOW_ERROR(' counted '|| (i - 2) );

/*End transfer to Excel */
--DDE.TERMINATE(docid);
--DDE.TERMINATE(convid);
--DDE.APP_END(appid);

/* Handle exceptions */
EXCEPTION
WHEN DDE.DDE_APP_FAILURE THEN
PKG_MSG.SHOW_ERROR('WINDOWS APPLICATION CANNOT START.');
WHEN DDE.DDE_PARAM_ERR THEN
PKG_MSG.SHOW_ERROR('A NULL VALUE WAS PASSED TO DDE');
WHEN DDE.DMLERR_NO_CONV_ESTABLISHED THEN
PKG_MSG.SHOW_ERROR('DDE CANNOT ESTABLISH A CONVERSATION');
WHEN DDE.DMLERR_NOTPROCESSED THEN
PKG_MSG.SHOW_ERROR('A TRANSACTION FAILED at row' || (i - 2) );
WHEN OTHERS THEN
PKG_MSG.SHOW_ERROR('EROOR '|| SQLCODE||SUBSTR(SQLERRM,1,60) );
/* End of trigger */
END;

Answer : DDE in Oracle forms

hi

i got these messages from oracle

1. A transaction failed.  The item name in a DDE.POKE or DDE.REQUEST transaction may be in error.

2. Check whether excel is installed in ur PC and check in which language it is installed.

3. do u have the excel file created in ur PC.

regards
annamalai