thanks you all for the explanations. It was a small project for a friend and
nothing critical really. I'm no windows guru, and i'm not so sure i want to
be (what with all the hoops and noops) ;)
Now back to Linux defender of... oops.... that's Voltron.... :)
On 4/1/06, John Stanton < [EMAIL PROTECTED]> wrote:
>
> Dennis Jenkins wrote:
> > Essien Essien wrote:
> >
> >>hiya,
> >>
> >>I have a code snippet that looks like:
> >>
> >>typedef int (*SQLITE3_CLOSE)(sqlite3*);
> >>typedef const char* (*SQLITE3_ERRMSG)(sqlite3*);
> >>typedef int (*SQLITE3_OPEN)(const char*, sqlite3**);
> >>typedef int (*SQLITE3_EXEC) (sqlite3*, const char*, sqlite3_callback,
> void*,
> >>char**);
> >>
> >>HINSTANCE sqlite3_dll;
> >>
> >>SQLITE3_CLOSE _sqlite3_close;
> >>SQLITE3_ERRMSG _sqlite3_errmsg;
> >>SQLITE3_OPEN _sqlite3_open;
> >>SQLITE3_EXEC _sqlite3_exec;
> >>
> >>int DB_Init()
> >>{
> >> sqlite3_dll = LoadLibrary("sqlite3.dll");
> >> if (sqlite3_dll == NULL) {
> >> printf("Cannot find sqlite3.dll. Make sure its in the same
> >>directory as the program\n");
> >> return 0;
> >> }
> >>
> >> _sqlite3_open = (SQLITE3_OPEN)GetProcAddress(sqlite3_dll,
> >>"sqlite3_open");
> >> if (_sqlite3_open == NULL) {
> >> printf("Cannot load function sqlite3_open");
> >> return 0;
> >> }
> >>}
> >>
> >>problem is, when ever i call DB_Init(), it always fails with 'Cannot
> load
> >>function sqlite3_open'. But it successfully passes the LoadLibrary
> portion.
> >>I'm not a win32 guru, so i'm willing to admit i've made a mistake
> somewhere.
> >>
> >>Any ideas on what i'm doing wrong?
> >>
> >>I'm using Turbo C++ 4.5 IDE and related tools. (yeah... i know turbo
> >>C++ 4.5is realy aged, but could this be the problem?)
> >>
> >>Essien
> >>
> >>
> >
> >
> > Since you have the borland compiler product, use the "TDUMP.EXE" tool to
> > view the PE header of the sqlite3.dll file. Sometimes the functions
> > will be exported with a leading underscore. If your compiler is
> > producing 32 bit binaries, and the DLL is also 32 bit, then you might
> > try adding a leading underscore to the symbol name when you call
> > 'GetProcAddress'.
> >
> You could also try statically linking Sqlite and bypassing the DLL.
>
