[Lazarus] global items in TApplication

[Martin]

On 15/09/2013 15:20, Marc Santhoff wrote:
> It's not in question how to implement global objects. Some are
> singletons by design and others are not in code but work like they were,
> because the only place the constructor is (allowed to be) called is the
> inittialization section.
>
> The qeustion is where to store those objects.

1)

global war, but in implementation

interface
procedure GetFoo: TFoo;
property Foo read GetFoo;

implementation
var TheFoo: TFoo = nil;
procedure GetFoo: TFoo;
begin
   if TheFoo= nil then TheFoo:= TFoo.Create;
   REsult := TheFoo;
end;


Or, in the GetFoo

implementation
procedure GetFoo: TFoo;
const TheFoo: TFoo = nil;
begin
   if TheFoo= nil then TheFoo:= TFoo.Create;
   REsult := TheFoo;
end;