[Mono-list] Mono/.NET delegate incompatibility
19 Dec 2002 07:43:55 -0500
`__stdcall' (the keyword) was just added for GCC 3.4, or "stdcall" stack
ordering was just added?
It can't be the latter. I know I've used "stdcall" functions from GCC
since (at least!) 2.95, probably earlier. It's needed to call any Win32
Granted, it was `__attribute__((stdcall))', not `__stdcall', so that
might be the difference.
Either way, if you need to compile a function using the `stdcall'
calling convention under GCC, this should work:
#define STDCALL __attribute__((stdcall))
void (STDCALL *func)(int);
On Wed, 2002-12-18 at 22:18, Fergus Henderson wrote:
> On 18-Dec-2002, Miguel de Icaza <firstname.lastname@example.org> wrote:
> > Hello,
> > > I am using a delegate to pass a function pointer into a unmanaged DLL.
> > > Under Linux/Mono everything works fine. Under Windows/.NET, my callback
> > > function signature must look like this:
> > >
> > > void (__stdcall *func)(int);
> > >
> > > But Windows/Mono seems to want:
> > >
> > > void (*func)(int);
> > __stdcall is a Microsoft-C feature, so it is really a feature of your
> > compiler.
> It's also a feature also of the Windows ABI.
> Note that support for __stdcall has just recently been added to GCC
> (the main CVS branch -- it should be included in GCC 3.4, I think).