Sir,

I changed the user password successfully.
Thanks.

Subhi.E
Software Associates

--- In IBObjects@yahoogroups.com, Paul Vinkenoog <paul@...> wrote:
>
> Hello Subhi,
>
> > procedure AlterUser(Action: TIB_AlterUserAction; AUserName,
> > AUserPass, AGroupName, AFirstName, AMiddleName, ALastName:
string);
>
> > I got the error message "Access violation at address 00000000.
Read
> > of address 00000000". How to solve this?
>
> You have a nil pointer somewhere. Three possible causes are:
>
> 1) You didn't initialize a certain variable. You should be able to
> discover which one by stepping through your code in the debugger.
> Look at which line the error occurs and examine the objects /
> properties / pointers that are accessed on that line.
>
> 2) A compilation error that shows up at runtime. I don't know if
this
> happens often with Delphi, but with C++ Builder I sometimes get
the
> same error as you, even when my code is 100% correct and there
are
> no nil pointers around. After deleting all intermediate files and
> rebuilding (without changing anything in the source), the error
> disappears.
>
> 3) An error within the IBO code? The AlterUser functions have always
> worked for me, but maybe there have been modifications - maybe
> something to do with the user management changes in Firebird 2.
>
>
> Greetings,
> Paul Vinkenoog
>