static variable at class level (example?)

[Han777]

In Delphi, could someone give me an example of what is meant by variables that are "static at the class level.

 

[lespaul]

while I don't have a specific answer for your question, here is a link to OOP in Delphi that I found extremely helpful in grasping some of the more advanced topics of OOP.

http://delphi.about.com/od/course/a/oop_intro.htm

I think however that a static class variable is one that is available to all instances of a class.

As opposed to an instance variable: each instance of the class creates its own copy of the variable.


Leslie

In an open world there's no need for windows and gates

http://www.ubuntu.com

 

[Han777]

Thanks Les Paul for the good suggestion. I often consult delphiabout.com. I've been told by a programming associate that a variable that is static at the class level is coded like this (Quotes are his):

type
TMyClass = class
A: longint; static;
end;

In this case, a becomes essentially a global variable.

 

[sggaunt]

This doosent seem to work in Delphi 7.
and there are no references to a 'Static' keyword in the help either.

There is a way to fix a variable at a pecified memory location, cant find or remember it though!

type
TMyClass = class
A: longint; static;
end;

Steve: N.M.N.F.
Playing the blues isn't about feeling better. It's about making other people feel worse.

 

[whosrdaddy]

Han77: do you mean this?

http://delphi.about.com/od/beginners/a/typedconstant.htm

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