[PD-dev] [PD] [PD]sys_vgui()?

[Lluis Gómez i Bigordà]

hi list, just a question about sys_vgui() ... 

i'm trying to get some info about a widget on the pd canvas, 
but sys_vgui() is declared to retun void ... so i cannot get anything
using this function ...

there is another way to run tcl/tk scripts in the pd canvas and get the
returned data of this scripts?

thanks,
ll.
 

On Sun, 31 Oct 2004, Rory Walsh wrote:
> 
> > Can anyone explain what exactly this routine does? When trying to
> > write an object to display a bitmap or jpeg on the PD canvas I came
> > across this very useful routine. I guess it’s a routine that
> > interpreters tcl/tk scripts? Can anyone explain what exactly is does
> > and what the parameters are? Cheers,
> 
> Pd is a client-server system connected by a socket. the client sends to
> the server using the "pd" proc in Tcl, in the same format as [netsend].
> The server sends to the client Tcl commands using sys_gui(), and the
> client calls "eval" on them.
> 
> sys_gui() takes a single string argument. sys_vgui() is a combination of
> sprintf() with sys_gui(), so it takes the same arguments as printf(),
> which are (const char *format, ...) where format is a %-string.