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String and WideString interoperability

 
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Jure Bogataj
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PostPosted: Thu Nov 20, 2003 9:41 am    Post subject: String and WideString interoperability Reply with quote



Hi!

For a while now I have been using COM objects and mixing together String and
WideString types. But now I have began to wonder if Delphi manages those
things correctly or more specific how does Delphi manage these things -
internaly or with COM support routines?

For example I have following function (Get and Set for property MyProperty)

....
FMyProperty : String;
....
function TMyClass.Get_MyProperty : WideString; safecall;
begin
Result := FMyProperty;
end;

procedure TMyClass.Set_MyProperty(Value : WideString); safecall;
begin
FMyProperty := Value;
end;

Delphi handles this automaticaly, right? But what about string reference
counting, memory allocations, possible memory leaks, etc.!

Any light-shed on this topic would be greatly appreciated!


TIA

regards


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