In this case, I presume default values can only be of type float. I can't have type char* as defaults, can I? /Paul.
--- In [email protected], "Tomasz Janeczko" <gro...@...> wrote: > > Hello, > > Yes. In fact these functions are not special. > They take fixed number of params, but they define > default values for all those missing params as Null (EMPTY_VAL), > then at run time the function checks for Nulls. > That's all, no magic here. > > Best regards, > Tomasz Janeczko > amibroker.com > ----- Original Message ----- > From: "Paul Ho" <paul.t...@...> > To: <[email protected]> > Sent: Saturday, August 15, 2009 6:17 PM > Subject: [amibroker] Re: ADK printf > > > > is it possible to write dll functions that takes variable no of arguments > > similiar yo printf > > /paul > > --- In [email protected], "Tomasz Janeczko" <groups@> wrote: > >> > >> Hello, > >> > >> AmiBroker ADK requires you to pass the number of arguments regardless. > >> The magic value for printf call is 21. > >> > >> AmiVar vars[ 21 ]; > >> > >> SiteInterface.CallFunction( "printf", 21, vars ); > >> > >> You need to fill all unused vars with EMPTY_VAL . > >> > >> Best regards, > >> Tomasz Janeczko > >> amibroker.com > >> ----- Original Message ----- > >> From: "Paul Ho" <paul.tsho@> > >> To: <[email protected]> > >> Sent: Saturday, August 15, 2009 4:55 PM > >> Subject: [amibroker] Re: ADK printf > >> > >> > >> > When functions of variable arguments are implemented. the three dots as > >> > in printf(const char*str, ...) tells the compiler not > >> > to > >> > do any parsing of arguments but simply pass all arguments as a block of > >> > memory on the stack pointed to by str. However this is > >> > intercepted by Amibroker's wrapper codes that is reinforcing the > >> > ArgsTable and NumArg protocol. I reckon if you copy all your > >> > arguments as a single block of memory pointed to by a char pointer and > >> > make Args.string = charptr and use the CallFunction with > >> > this 1 argument, The printf on the other side may be waiting for it. > >> > Let us know if this work > >> > Havent tried it myself though. > >> > /Paul. > >> > --- In [email protected], "Julian" <juliangoodsell@> wrote: > >> >> > >> >> How do you call this function from the ADK? > >> >> > >> >> SiteInterface.CallFunction("printf", ?, ?); > >> >> I get invalid number of arguments. > >> >> > >> >> Is there another way to write to the Interpretation window? > >> >> > >> >> Jules. > >> >> > >> > > >> > > >> > > >> > > >> > ------------------------------------ > >> > > >> > **** IMPORTANT PLEASE READ **** > >> > This group is for the discussion between users only. > >> > This is *NOT* technical support channel. > >> > > >> > TO GET TECHNICAL SUPPORT send an e-mail directly to > >> > SUPPORT {at} amibroker.com > >> > > >> > TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at > >> > http://www.amibroker.com/feedback/ > >> > (submissions sent via other channels won't be considered) > >> > > >> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: > >> > http://www.amibroker.com/devlog/ > >> > > >> > Yahoo! Groups Links > >> > > >> > > >> > > >> > > > > > > > > > > ------------------------------------ > > > > **** IMPORTANT PLEASE READ **** > > This group is for the discussion between users only. > > This is *NOT* technical support channel. > > > > TO GET TECHNICAL SUPPORT send an e-mail directly to > > SUPPORT {at} amibroker.com > > > > TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at > > http://www.amibroker.com/feedback/ > > (submissions sent via other channels won't be considered) > > > > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: > > http://www.amibroker.com/devlog/ > > > > Yahoo! Groups Links > > > > > > >
