Hy!
I found the problema...
I forgot to put the '&' before the 2nd parameter passed to the function, and
did'n used the second pointer as pointer.
Look:
void ForwardColumnsOnRecord(Char *LastColumn, Char **DestColumn, UInt16
NumColsToAdvance)
{
int Count;
int NumChars=0;
*DestColumn = LastColumn;
for (Count = 0; Count < NumColsToAdvance; Count++)
{
NumChars = NumChars + StrLen(*DestColumn) + 1;
*DestColumn = LastColumn + NumChars;
}
return;
}
The function should be called like this:
ForwardColumnsOnRecord(Codigo, &Razao, 1);
Thanks all!
"R�gis Daniel de Oliveira" <[EMAIL PROTECTED]> escreveu na mensagem
news:[EMAIL PROTECTED]
>
>
> Hy all!
>
> I'm trying to build a function that will have 2 pointers as parameters.
>
> When this function is called by the main function, is should modify the
2nd
> parameter and the main function should be able to work with the second
> parameter modified. But, inside the function that work with the pointers,
> everything works well, but, when the second function exits, the pointer of
> main functions hasn't changed. Look the code below:
>
>
> void ForwardColumnsOnRecord(Char *LastColumn, Char *DestColumn, UInt16
> NumColsToAdvance)
> {
>
> int Count;
> int NumChars=0;
>
>
> DestColumn = LastColumn;
>
> for (Count = 0; Count < NumColsToAdvance; Count++)
> {
> NumChars = NumChars + StrLen(DestColumn) + 1;
> DestColumn = LastColumn + NumChars;
> }
>
> return;
> }
>
>
>
> dbPtrF = NULL;
> OpenDatabase(&dbPtrF, "SAF_CLIENTES");
>
> {
> MemHandle h;
> Char *Codigo, *Razao;
>
> h = DmQueryRecord(dbPtrF, SelectedClientIDX);
> Codigo = (Char *) MemHandleLock(h);
>
>
>
>
> ForwardColumnsOnRecord(Codigo, Razao, 1); // here, the pointer Razao
> shoud assume the value that DestColumn assumed inside the code, but it,s
not
> working.
> }
>
> DmCloseDatabase(dbPtrF);
>
>
> Thanks all, and sorry by the idiot question!
>
>
>
> R�gis Daniel de Oliveira
>
>
>
>
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