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Borland Database Engine using SetConfigParameter to set NET DIR - Object not found Error

Posted on 2007-12-04
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Last Modified: 2010-07-27
I'm using SetConfigParameter in Delphi 5 to set the NET DIR but get Object not found error. Here's my code:

SetConfigParameter('\program files\common files\borland shared\bde\;NET DIR','\program files\common files\borland shared\bde\');

I'm using the code for the SetConfigParameter routine from the Borland website

Thanks
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Question by:pauljackson5750
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LVL 13

Expert Comment

by:rfwoolf
ID: 20404217
I think the first parameter you're supplying is no good, try adding the drive letter, i.e.
SetConfigParameter('C:\program files\common files\borland shared\bde\;NET DIR','\program files\common files\borland shared\bde\');

personally I add DBTables to my uses clause of the form, then I say

session.netfiledir := 'c:\whatever';
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rfwoolf earned 125 total points
ID: 20404255
Okay here's what I found on the borland website and implemented to change the LOCAL SHARE to true.

The first is a general procedure to make changes to the BDE:

The second calls the procedure with the parameter to be set in the BDE config file...
procedure SetConfigParameter2(Param: string; Value: string);

var

  hCfg: hDBICfg;

  Config: SYSConfig;

  Path, Option: string;

  ParamCount, I: word;

  pFields, pFld: pFLDDesc;

  pRecBuf, pRec: pBYTE;

  Found, SelfInitialized: boolean;

  rslt: DBIResult;
 

begin

  {$Ifdef WIN32}

  hCfg := nil;

  pFld := nil;

  pRec := nil;

  Found := False;

  SelfInitialized := False;

  try

    if Pos(';', Param) = 0 then

      raise EDatabaseError.Create('Invalid parameter passed to function.  There must ' +

         'be a semi-colon delimited sting passed');

    Path := Copy(Param, 0, Pos(';', Param) - 1);

    Option := Copy(Param, Pos(';', Param) + 1, Length(Param) - Pos(';', Param));
 

    rslt := DbiGetSysConfig(Config);

    if rslt <> DBIERR_NONE then

    begin

      if rslt = DBIERR_NOTINITIALIZED  then // Engine not initialized error...

      begin

        SelfInitialized := True;

        DbiInit(nil);

        Check(DbiGetSysConfig(Config));

      end

      else

        Check(rslt);

    end;

    (* DbiOpenConfigFile is defined as such:

        function DbiOpenConfigFile (            { Open/Create configuration }

              pszDirPath    : PChar;            { Directory }

              bCreate       : Bool;             { TRUE to create/overwrite }

        var   hCfg          : hDBICfg           { Handle to config }

                           ): DBIResult stdcall; *)

    Check(DbiOpenConfigFile(Config.szIniFile, FALSE, hCfg));
 

    (* DbiCfgGetRecord is defined as such:

        function DbiCfgGetRecord (              { Get a record }

              hCfg          : hDBICfg;          { Config Handle/NULL }

              pszCfgPath    : PChar;            { Path }

        var   iFields       : Word;             { Returned nbr of fields }

              pfldDesc      : pFLDDesc;         { Field descriptors }

              pRec          : Pointer           { Field values }

                           ): DBIResult stdcall; *)

    { Call it without the field and record buffer to get the count... }

    Check(DbiCfgGetRecord(hCfg, PChar(Path), ParamCount, nil, nil));
 

    pFields := AllocMem(ParamCount * sizeof(FLDDesc));

    pFld := pFields;

    pRecBuf := AllocMem(10000);

    pRec := pRecBuf;
 

    { Get the node values... }

    Check(DbiCfgGetRecord(hCfg, PChar(Path), ParamCount, pFields, pRecBuf));
 

    for I := 0 to ParamCount - 1 do

    begin

      if pFields^.szName = Option then

      begin

        StrPCopy(PChar(pRecBuf), Value);
 

        (* DbiCfgModifyRecord is defines as such:

             function DbiCfgModifyRecord (           { Modify a record }

                   hCfg          : hDBICfg;          { Config Handle/NULL }

                   pszCfgPath    : PChar;            { Path }

                   iFields       : Word;             { Nbr of fields }

                   pfldDesc      : pFLDDesc;         { Field descriptors }

                   pRec          : Pointer           { Data values }

                ): DBIResult stdcall; *)

        Check(DbiCfgModifyRecord(hCfg,  PChar(Path), ParamCount, pFld, pRec));
 

        Found := True;

     end;

      Inc(pFields);

      Inc(pRecBuf, 128);

    end;

    if Found = False then

      raise EDatabaseError.Create(Param + ' entry was not found in configuration file');
 

  finally

    if pFld <> nil then

      FreeMem(pFld);

    if pRec <> nil then

      FreeMem(pRec);

    if hCfg <> nil then
 

    (* DbiCloseConfigFile is defined as such:

           function DbiCloseConfigFile (           { Close the config file }

           var   hCfg          : hDBICfg;          { Handle }

                 bSave         : Bool;             { To save the changes }

                 bDefault      : Bool;             { To make this file the default }

                 bSaveAs16     : Bool              { To save as a 16-bit config file }

              ): DBIResult stdcall; *)

      { Close and save the config file... }

    Check(DbiCloseConfigFile(hCfg, TRUE, TRUE, FALSE));

    if SelfInitialized = True then

      DbiExit;

  end;

  {$Else}

     raise EDatabaseError.Create('Non supported function in 16 bit');

  {$EndIf}

end;
 
 
 
 
 
 
 

===============================================================
 
 
 
 
 

  //Set LOCAL SHARE TO TRUE

SetConfigParameter2('\SYSTEM\INIT\;LOCAL SHARE', 'TRUE');

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Author Closing Comment

by:pauljackson5750
ID: 31412922
Used the session.netfiledir := getcurrentdir and it seems to work.

Many thanks
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