Class/Static Constants in Delphi

Question

In Delphi, I want to be able to create an private object that\'s associated with a class, and access it from all instances of that class. In Java, I\'d use:

pub         


        

Answer 1

In Delphi static variables are implemented as variable types constants :)

This could be somewhat misleading.

procedure TForm1.Button1Click(Sender: TObject) ;
const
   clicks : Integer = 1; //not a true constant
begin
  Form1.Caption := IntToStr(clicks) ;
  clicks := clicks + 1;
end;

And yes, another possibility is using global variable in implementation part of your module.

This only works if the compiler switch "Assignable Consts" is turned on, globally or with {$J+} syntax (tnx Lars).