> Benoît Minisini wrote: > > In Gambas 3, the /control directory must be put inside the "Project" > > section. > > Okay, that worked. I was using the control directory automatically > created when I first created the project. Thanks. > > > Please provide the details of what you have done, and maybe I will tell > > you. > > I'm referring to code used when programming the component itself. > > For example, in the component code: > > Public Sub _new(lVal1 As Long, lVal2 As Long, Optional lVal3 As Long) > > If I make the component and try to use it in a project, I have to also > pass the parent container name. So, if I use: > > oVar = New ComponentName(lVal1, lVal2, lVal3, FMain) > > It works fine. But if I try to leave out the *optional* argument: > > oVar = New ComponentName(lVal1, lVal2, FMain) > > I will get "Not enough arguments" from the IDE. If I try: > > oVar = New ComponentName(lVal1, lVal2, , FMain) > > I will get "Unexpected Comma" from the IDE. And, of course, if I pass > NUll as the optional argument, it's the incorrect data type for the > argument. I understand why I'm getting the messages I'm getting. I'm > just asking is there any way to use an *optional* argument to the _new > sub of a component. > > This isn't something critical. This is just a personal project I chose > to do as an exercise, to get familiar with Gambas. I always do stuff > like this whenever I'm learning a new language or (in this case) IDE, etc. >
You get a point there: optional arguments cannot really be used in constructors, unless you do not use inheritance. Because the rule is that if an argument is optional, all following arguments are. Which is a contradiction with the way arguments are used. Maybe I should change the way arguments are consumed by inherited constructors. I mean not inverting them, i.e. inverting them on the stack, so that you write New MyControl(FMain, lVal1, lVal2...). But this will uses some CPU. I must think about that... -- Benoît Minisini ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
