Can windev or webdev support override?

Hi,

Can windev / webdev support override in procedures or functions ?

Thanks & Regards,

PETER ZHOU

Hello Peter

Have a look at "Overload" in the Help, maybe that is what you are looking for.

Regards
Al

Hi Peter

it depends what you call override...

Can you create a procedure called hadd that will overwrite the standard hadd function? Yes, no problem

Can you create SEVERAL hadd functions with different types of parameters used automatically depending of the parameter used? no!

Best regards

PETER ZHOU wrote:
> Hi,
> Can windev / webdev support override in procedures or functions ?
> Thanks & Regards,
> PETER ZHOU
>

You can override Windev's buildin functions.
procedure TRACE(param)
return WL.TRACE(param)

You can't override a procedure This wont work :

procedure hello(x is string)

procedure hello(x is int)

hth, björn
Message forwarded from pcsoft.us.windev

Hi Peter

If you use classes, you can override the methods (use VIRTUAL keyword)

Cheers

Malc

Hi Peter,

And just to add to all the other posts... since your question is wide... here is another answer: no for your general functions but you can imitate the behaviour using different parameters types, or the number of parameters.

Do not "type" your parameters, and use * if required.

PROCEDURE Something(param1,param2,*)

Then with MyParameters..Type (or TypeVar) you can know to type of a parameter and adopt the desired behaviour. And MyParameters..Occurence returns the number of parameters.

Best regards.