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Question about Classes

Xailer professional forum in English
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Giuseppe Bogetti
Mensajes: 281
Registrado: Vie Ago 04, 2006 4:58 pm

Question about Classes

Mensaje por Giuseppe Bogetti »

Il Wed, 4 Oct 2006 13:11:20 +0400, Oleg ha scritto:
Oleg,
> Hello!
>
> How can I check in code if some class inherited from defined class?
> (For example, how to check if some Xailer object is TForm instance)
>
> o:=TForm1():New(Application:oMainForm)
> ...
> if IsForm(o) // ???
if ( __objDerivedFrom( o, "TFORM" ) )
--
Best regards,
Giuseppe Bogetti
B.G. Soft
Cuneo - Italy
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Giuseppe Bogetti
Mensajes: 281
Registrado: Vie Ago 04, 2006 4:58 pm

Question about Classes

Mensaje por Giuseppe Bogetti »

Il Wed, 4 Oct 2006 13:11:20 +0400, Oleg ha scritto:
Oleg,
> Hello!
>
> How can I check in code if some class inherited from defined class?
> (For example, how to check if some Xailer object is TForm instance)
>
> o:=TForm1():New(Application:oMainForm)
> ...
> if IsForm(o) // ???
if ( __objDerivedFrom( o, "TFORM" ) )
--
Best regards,
Giuseppe Bogetti
B.G. Soft
Cuneo - Italy
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jfgimenez
Site Admin
Mensajes: 5718
Registrado: Lun Abr 06, 2015 8:48 pm
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Question about Classes

Mensaje por jfgimenez »

Oleg, Giuseppe,
>> How can I check in code if some class inherited from defined class?
>> (For example, how to check if some Xailer object is TForm instance)
>>
>> o:=TForm1():New(Application:oMainForm)
>> ...
>> if IsForm(o) // ???
> if ( __objDerivedFrom( o, "TFORM" ) )
José F. Giménez
[Equipo de Xailer / Xailer team]
http://www.xailer.com
http://www.xailer.info
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jfgimenez
Site Admin
Mensajes: 5718
Registrado: Lun Abr 06, 2015 8:48 pm
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Question about Classes

Mensaje por jfgimenez »

Oleg, Giuseppe,
>> How can I check in code if some class inherited from defined class?
>> (For example, how to check if some Xailer object is TForm instance)
>>
>> o:=TForm1():New(Application:oMainForm)
>> ...
>> if IsForm(o) // ???
> if ( __objDerivedFrom( o, "TFORM" ) )
José F. Giménez
[Equipo de Xailer / Xailer team]
http://www.xailer.com
http://www.xailer.info
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jfgimenez
Site Admin
Mensajes: 5718
Registrado: Lun Abr 06, 2015 8:48 pm
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Question about Classes

Mensaje por jfgimenez »

Oleg, Giuseppe,
>> How can I check in code if some class inherited from defined class?
>> (For example, how to check if some Xailer object is TForm instance)
>>
>> o:=TForm1():New(Application:oMainForm)
>> ...
>> if IsForm(o) // ???
> if ( __objDerivedFrom( o, "TFORM" ) )
A little more easy:
o:IsKindOf( "TForm" )
--
Regards,
Jose F. Gimenez
http://www.xailer.com
José F. Giménez
[Equipo de Xailer / Xailer team]
http://www.xailer.com
http://www.xailer.info
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jfgimenez
Site Admin
Mensajes: 5718
Registrado: Lun Abr 06, 2015 8:48 pm
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Question about Classes

Mensaje por jfgimenez »

Oleg, Giuseppe,
>> How can I check in code if some class inherited from defined class?
>> (For example, how to check if some Xailer object is TForm instance)
>>
>> o:=TForm1():New(Application:oMainForm)
>> ...
>> if IsForm(o) // ???
> if ( __objDerivedFrom( o, "TFORM" ) )
A little more easy:
o:IsKindOf( "TForm" )
--
Regards,
Jose F. Gimenez
http://www.xailer.com
José F. Giménez
[Equipo de Xailer / Xailer team]
http://www.xailer.com
http://www.xailer.info
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Oleg
Mensajes: 474
Registrado: Mié Jun 07, 2006 3:45 pm

Question about Classes

Mensaje por Oleg »

Giuseppe,
thank you.
Regards,
Oleg
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Oleg
Mensajes: 474
Registrado: Mié Jun 07, 2006 3:45 pm

Question about Classes

Mensaje por Oleg »

Giuseppe,
thank you.
Regards,
Oleg
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david fung
Mensajes: 257
Registrado: Mié Jul 19, 2006 8:48 am

Question about Classes

Mensaje por david fung »

Jose F. Gimenez wrote:
> Oleg, Giuseppe,
>
>>> How can I check in code if some class inherited from defined class?
>>> (For example, how to check if some Xailer object is TForm instance)
>>>
>>> o:=TForm1():New(Application:oMainForm)
>>> ...
>>> if IsForm(o) // ???
>> if ( __objDerivedFrom( o, "TFORM" ) )
>
> A little more easy:
>
> o:IsKindOf( "TForm" )
>
>
Is IsKindOf() a real or just a psuedo function, can't find from
documentation ?
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david fung
Mensajes: 257
Registrado: Mié Jul 19, 2006 8:48 am

Question about Classes

Mensaje por david fung »

Jose F. Gimenez wrote:
> Oleg, Giuseppe,
>
>>> How can I check in code if some class inherited from defined class?
>>> (For example, how to check if some Xailer object is TForm instance)
>>>
>>> o:=TForm1():New(Application:oMainForm)
>>> ...
>>> if IsForm(o) // ???
>> if ( __objDerivedFrom( o, "TFORM" ) )
>
> A little more easy:
>
> o:IsKindOf( "TForm" )
>
>
Is IsKindOf() a real or just a psuedo function, can't find from
documentation ?
Arriba
david fung
Mensajes: 257
Registrado: Mié Jul 19, 2006 8:48 am

Question about Classes

Mensaje por david fung »

david fung wrote:
> Jose F. Gimenez wrote:
>> Oleg, Giuseppe,
>>
>>>> How can I check in code if some class inherited from defined class?
>>>> (For example, how to check if some Xailer object is TForm instance)
>>>>
>>>> o:=TForm1():New(Application:oMainForm)
>>>> ...
>>>> if IsForm(o) // ???
>>> if ( __objDerivedFrom( o, "TFORM" ) )
>>
>> A little more easy:
>>
>> o:IsKindOf( "TForm" )
>>
>>
>
> Is IsKindOf() a real or just a psuedo function, can't find from
> documentation ?
It is real & it works. However, where is this property be found in the
documentation, where is it group under ?
Thanks
David
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david fung
Mensajes: 257
Registrado: Mié Jul 19, 2006 8:48 am

Question about Classes

Mensaje por david fung »

david fung wrote:
> Jose F. Gimenez wrote:
>> Oleg, Giuseppe,
>>
>>>> How can I check in code if some class inherited from defined class?
>>>> (For example, how to check if some Xailer object is TForm instance)
>>>>
>>>> o:=TForm1():New(Application:oMainForm)
>>>> ...
>>>> if IsForm(o) // ???
>>> if ( __objDerivedFrom( o, "TFORM" ) )
>>
>> A little more easy:
>>
>> o:IsKindOf( "TForm" )
>>
>>
>
> Is IsKindOf() a real or just a psuedo function, can't find from
> documentation ?
It is real & it works. However, where is this property be found in the
documentation, where is it group under ?
Thanks
David
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ignacio
Site Admin
Mensajes: 9441
Registrado: Lun Abr 06, 2015 8:00 pm
Ubicación: Madrid, Spain
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Question about Classes

Mensaje por ignacio »

David,
In xHarbour documentation I guess.
Regards,
--
Ignacio Ortiz de Zúñiga
http://www.xailer.com
"david fung" <davfung@yahoo.com> escribió en el mensaje
news:45238454$[email=1@news.xailer.com...]1@news.xailer.com...[/email]
> david fung wrote:
>> Jose F. Gimenez wrote:
>>> Oleg, Giuseppe,
>>>
>>>>> How can I check in code if some class inherited from defined class?
>>>>> (For example, how to check if some Xailer object is TForm instance)
>>>>>
>>>>> o:=TForm1():New(Application:oMainForm)
>>>>> ...
>>>>> if IsForm(o) // ???
>>>> if ( __objDerivedFrom( o, "TFORM" ) )
>>>
>>> A little more easy:
>>>
>>> o:IsKindOf( "TForm" )
>>>
>>>
>>
>> Is IsKindOf() a real or just a psuedo function, can't find from
>> documentation ?
>
> It is real & it works. However, where is this property be found in the
> documentation, where is it group under ?
>
> Thanks
> David
>
Ignacio Ortiz de Zúñiga
[OZ Software]
https://www.ozs.es
--
[Equipo de Xailer / Xailer team]
https://www.xailer.com
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NoName
Mensajes: 531
Registrado: Vie Feb 03, 2006 7:27 pm

Question about Classes

Mensaje por NoName »

David,
In xHarbour documentation I guess.
Regards,
--
Ignacio Ortiz de Zúñiga
http://www.xailer.com
"david fung" <davfung@yahoo.com> escribió en el mensaje
news:45238454$[email=1@news.xailer.com...]1@news.xailer.com...[/email]
> david fung wrote:
>> Jose F. Gimenez wrote:
>>> Oleg, Giuseppe,
>>>
>>>>> How can I check in code if some class inherited from defined class?
>>>>> (For example, how to check if some Xailer object is TForm instance)
>>>>>
>>>>> o:=TForm1():New(Application:oMainForm)
>>>>> ...
>>>>> if IsForm(o) // ???
>>>> if ( __objDerivedFrom( o, "TFORM" ) )
>>>
>>> A little more easy:
>>>
>>> o:IsKindOf( "TForm" )
>>>
>>>
>>
>> Is IsKindOf() a real or just a psuedo function, can't find from
>> documentation ?
>
> It is real & it works. However, where is this property be found in the
> documentation, where is it group under ?
>
> Thanks
> David
>
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