Hi Nick,
thanks for your attempt to help but your solution does not work.
I can load the dll with either .L or gSystem->Load but the class is never
available after loading.
I suspect this to be a windows speciality but I depend on running this code
in windows, there is no way I can move away from this platform due to
external constraints.
cheers Armin
*************************************************
* Dr. Armin Reichold | private: *
* Research Officer | 17 Frys Hill *
* University of Oxford | Oxford *
* Particle & Nuclear Phys. Lab. | OX4 7GW *
* 1 Keble Road | UK *
* Oxford OX1 3RH *
* UK *
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* *
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-----Original Message-----
From: Nick van Eijndhoven [mailto:Nick@phys.uu.nl]
Sent: Friday, June 15, 2001 8:16 AM
To: Armin Reichold
Cc: 'Valeri Fine'; roottalk@pcroot.cern.ch
Subject: Re: [ROOT] loading a shared library but not being able to use
the classes init
Hi Armin,
Instead of .L mylibrary.dll use gSystem->Load("mylibrary").
This should load your classes correctly.
Cheers,
Nick.
--
Dr. Nick van Eijndhoven mailto:nick@phys.uu.nl http://www.phys.uu.nl/~nick
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Armin Reichold wrote:
>
> Dear Rooter and Valerie
> I am using ROOT 3.01.05 on windows 2000.
> I have a set of classes I would like to use in root
> I generate a dictionary for them like this:
>
> rootcint -f MyDictionary.cxx MyClass1.h ..... MyClassN.h linkdef.h
>
> During dictionary generation I get some warnings about Datamembers being
> pointers to fundamental types and thus cint does not know their size but
> since I don't need the streamers for the classes I don't really care I
> think.
>
> my linkdef.h looks like this:
> ====================================
> #ifdef __CINT__
>
> #pragma ling off all globals;
> #pragma ling off all classes;
> #pragma ling off all functions;
>
> #pragma link C++ class MyClass1;
> .....
> #pragma link C++ class MyClassN;
>
> #endif
> ====================================
>
> I have compiled the classes into a dll (developer studio 6) wich I load
into
> an interactive root session with .L mylibrary.dll
> I then try to use them and root complains that it does not know them like:
> class, stuct, union or type MyClass1 not defined
> Same error occurs if I try: .class MyClass1
>
> However if I load the dll again it says:
> warning in <Add>: class MyClass1 allready in in TClassTable
>
> Note:
> starting root I do get a funny message which says:
> Warning in <TWinNTSystem::setProgname>: wrong Program Path
> maybe that has something to do with my problems
>
> Valerie:
> this seems to be related to one of your latest messages to roottalk about
> loading dll's under windows but I am not realy sure.
>
> thansk for any help,
> cheers Armin
>
> *************************************************
> * Dr. Armin Reichold | private: *
> * Research Officer | 17 Frys Hill *
> * University of Oxford | Oxford *
> * Particle & Nuclear Phys. Lab. | OX4 7GW *
> * 1 Keble Road | UK *
> * Oxford OX1 3RH *
> * UK *
> * Room 612 *
> * *
> * Tel. : +44-(0)1865-273358...(office) *
> * Tel. : +44-(0)1865-434856...(private) *
> * Mobile: +44-(0)7930-431102...(emergency only) *
> * Fax. : +44-(0)1865-273418...(office) *
> * E-Mail: a.reichold1@physics.ox.ac.uk *
> * Netmeeting: ppnt67.physics.ox.ac.uk (business)*
> * ---//--- Dir. Server: webnt.physics.ox.ac.uk *
> *************************************************
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