[fpc-pascal] problem with interface (OOP not widget)

[Jonas Maebe]

On 12 Mar 2008, at 11:02, Jonas Maebe wrote:

> On 12 Mar 2008, at 05:41, Bee wrote:
>
>> http://bugs.freepascal.org/view.php?id=10684
>>
>>> Hints? TIA.
>>
>> I'm currently using a not too elegant workaround to solve this  
>> problem. With some IFDEFs because the workaround is for FPC only.
>
> There is no support for passing nil as a constant to a "procedure of  
> object" parameter of a cdecl procedure at this time. You can work  
> around it by using two overloads (one with a tnotify parameter, one  
> without). That should work both in FPC and in Delphi.

Actually, this is more or less the same as what JoshyFun suggested  
earlier.


Jonas