Re: [Plplot-general] problems with using Dll in VC++.net

[Ruwei L. <rw...@ph...>]

Hi, Arjen,

    I was about to send you the source code and project file when I 
found that my project was using
C++ binding, and I tried to link it to the original plplotd.dll and a 
new "plstream.dll" which I created using
the source code (with minor change) to support C++ binding. So those 
error messages may not due to
plplotd.dll. It maybe caused by my "plstream.dll".  Is it the right way 
to create a c++ binding dll for plplot
just using the "plstream.cc" and "plstream.h"(change the declaration of  
"class plstream" to "class __declspec(dllexport) plstream")
and link the project to "plplotd.dll"?  Thanks a lot!

     I'm really really sorry for my mistake.  I got so dippy with adding 
on C++ binding, GD lib and/or freetype
to the Plplot library.

     Regards,
     Ruwei


    
   

Arjen Markus wrote:

> Ruwei Liu wrote:
>
>> Hi, all
>>
>>     I'm trying to use plplot library for a project. It works fine 
>> with the static library , but it fails to
>> link when I using the dynamic library. I got the following error 
>> message:
>>
>>         ------ Build started: Project: Tplot, Configuration: Debug 
>> Win32 ------
>>
>>    Linking...
>>    LINK : error LNK2020: unresolved token (0A0000B3) 
>> plD_dispatch_init_null
>>    LINK : error LNK2020: unresolved token (0A0000B4) 
>> plD_dispatch_init_gif
>>    LINK : error LNK2020: unresolved token (0A0000B5) 
>> plD_dispatch_init_jpeg
>>    LINK : error LNK2020: unresolved token (0A0000B6) 
>> plD_dispatch_init_png
>>    LINK : error LNK2020: unresolved token (0A0000B7) 
>> plD_dispatch_init_ljii
>>    LINK : error LNK2020: unresolved token (0A0000B8) 
>> plD_dispatch_init_ljiip
>>    LINK : error LNK2020: unresolved token (0A0000B9) 
>> plD_dispatch_init_xfig
>>    LINK : error LNK2020: unresolved token (0A0000BA) 
>> plD_dispatch_init_psc
>>    LINK : error LNK2020: unresolved token (0A0000BB) 
>> plD_dispatch_init_psm
>>    LINK : error LNK2020: unresolved token (0A0000BC) 
>> plD_dispatch_init_plm
>>    LINK : error LNK2020: unresolved token (0A0000BD) 
>> plD_dispatch_init_win3
>>    LINK : fatal error LNK1120: 11 unresolved externals
>>
>>    Tplot - 12 error(s), 0 warning(s)
>>
>>     I did put the "plplotd.lib", "plplotd.def", "plplotd.exp" and 
>> "plplotd.dll" to the project directory, link
>> to "plplotd.lib", and also defined "__PLDLL_H__", is there anything 
>> I'm still missing?
>
>
> Have you looked at the makefile for the examples with the DLL in 
> sys\msdev\win32\dexamples?
> These compile and link allright, so I would suggest you mimick the 
> compile and link options
> from these examples.
>
> If this does not work, can you send me the source code and the 
> makefile/project file, so that I
> can try and reproduce this on my machine? (I maintain the win32 device 
> and the MSVC
> build system)
>
> Regards,
>
> Arjen