| Subject: | Re: Access instance created in with .. do |
| Posted by: | Joanna Carter [TeamB] (joanna@not.for.spam) |
| Date: | Wed, 21 Jun 2006 |
"Christian Gorski" <no.spam@no.spam.com> a écrit dans le message de news:
449953b0$…@newsgroups.borland.com...
| Is there any possibility to access the reference pointer to an instance
| of an object created in with .. do?
|
| For example, I want to call SomeFunc with the created instance of TObj:
|
| with TObj.Create do begin
| SomeFunc(?);
| Free;
| end;
First of all "with" is evil ! :-))
Second, if you really insist on using it, then you need to add a method,
that returns self, to the class that you are trying to use
TObj = class
...
public
function GetThis: TObj;
...
end;
implementation
function TObj.GetThis: TObj
begin
return self;
end;
Thirdly, if you are going to call free in the with block I suggest you also
include a correctly declared try..finally block inside it.
begin
with TObj.Create do
try
SomeFunc(?);
finally
Free;
end;
end;
But better still would be to do things properly and not have to mess up your
classes for the sake of a couple of extra keypresses when typing the code.
var
obj: TObj;
begin
obj := TObj.Create;
try
SomeFunc(obj);
finally
obj.Free;
end;
end;
Joanna
--
Joanna Carter [TeamB]
Consultant Software Engineer
Access instance created in with .. do posted by Christian Gorski on Wed, 21 Jun 2006