Quoting Thomas O Fredericks <[EMAIL PROTECTED]>: > Thanks to Han's help page (http://puredata.info/docs/developer/mingw) I was > able to compile a test external on windows with mingw. > > I then started making a new external called getdollarzero based on getdir > (from ggee) and parentdollarzero (from iemlib2). I compiled it and it works > but I had to: > 1) remove Guenter's hack from getdir's source code > 2) and therefore include g_canvas.h > > My question is the following: why is there a hack in the first place?
Hi, The hack is there so that I did not have to include g_canvas.h. There is no harm including it properly, it might be even better ... Günter > If I > do not use it will my code crash PD in some way (I compiled against PD > 0.4and worked fine during testing)? > > As a reference, here is my code with the hack commented out : > > > --------- getdollarzero -------- > > #include "m_pd.h" > #include "g_canvas.h" //needed to include g_canvas.h once the hack was > commented out > > > /* HACK > struct _glist > { > t_object gl_obj; // header in case we're a glist > t_gobj *gl_list; // the actual data > struct _gstub *gl_stub; // safe pointer handler > int gl_valid; // incremented when pointers might be stale > struct _glist *gl_owner; // parent glist, supercanvas, or 0 if none > }; > > END HACK > */ > > typedef struct getdollarzero > { > t_object x_ob; > t_canvas * x_canvas; > t_outlet* x_outlet; > int x_level; > } t_getdollarzero; > > > > > static void getdollarzero_bang(t_getdollarzero *x) > { > int i = x->x_level; > t_canvas* last = x->x_canvas; > > while (i>0) { > i--; > if (last->gl_owner) last = last->gl_owner; > } > // code example taken from iemlib2's parentdollarzero: > // x->s_parent_unique = canvas_realizedollar((t_canvas > *)this_canvas->gl_owner, gensym("$0")); > // original get dir function: > //outlet_symbol(x->x_outlet,canvas_getdir(last)); > > outlet_symbol(x->x_outlet,canvas_realizedollar(last, gensym("$0"))); > } > > t_class *getdollarzero_class; > > static void *getdollarzero_new(t_floatarg level) > { > t_getdollarzero *x = (t_getdollarzero *)pd_new(getdollarzero_class); > x->x_canvas = canvas_getcurrent(); > x->x_outlet = outlet_new(&x->x_ob, &s_); > x->x_level = level; > return (void *)x; > } > > void getdollarzero_setup(void) > { > getdollarzero_class = class_new(gensym("getdollarzero"), > (t_newmethod)getdollarzero_new, 0, > sizeof(t_getdollarzero), 0, A_DEFFLOAT,0); > class_addbang(getdollarzero_class, getdollarzero_bang); > } > > --------- getdollarzero end -------- > > -- > thomas ouellet fredericks, [EMAIL PROTECTED], montreal, canada > ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. _______________________________________________ PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list