Hi Raphael,<br><br>It seems that the original Visual C++ shapelib project preprocessor definitions are invalid. (generated shapelib.lib and shapelib.dll symbols are incompatible)<br><br>Please try as follows,<br>1. modify shapelib project C/C++ preprocessor definition from VC property page<br>
SHPAPI_CALL=__stdcall<br> --> SHAPELIB_DLLEXPORT<br>2. modify each source files(dbfopen.c/shpopen.c/shptree.c) C/C++ preprocessor definition from VC property page<br> SHAPELIB_EXPORTS;SHPAPI_CALL=__stdcall;$(NoInherit)<br>
--> SHAPELIB_DLLEXPORT<br>3. rebuild shapelib project.<br>4. import generated shapelib.lib to your project and build.<br><br>Regards,<br><br>Sanak.<br><br><div class="gmail_quote">2009/6/21 raphael_mws <span dir="ltr"><<a href="mailto:r.speck@minewolf.com">r.speck@minewolf.com</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br>
Hi folks,<br>
<br>
I am having a real hard time including the shapelib.dll in my VC++ 2008<br>
project. I did the following:<br>
<br>
- recompile the Visual C++ shapelib project from<br>
<a href="http://dl.maptools.org/dl/shapelib/contrib/DotNetArchive.zip" target="_blank">http://dl.maptools.org/dl/shapelib/contrib/DotNetArchive.zip</a>. This worked<br>
fine, and I got the output dll and lib files.<br>
<br>
- include the shapefil.h in my .cpp file successfully<br>
<br>
- tried various possibilities to get the shapelib.dll in the correct PATH.<br>
Actually, it should be found by the compiler, I even tried putting it into<br>
C:\WINDOWS\system32 to make sure that's not the problem.<br>
<br>
- experimented with various combinations of __declspec( dllimport ) to<br>
import the functions from the dll<br>
<br>
When I try to compile, I always get the following error:<br>
"error LNK2019: Verweis auf nicht aufgelöstes externes Symbol "_SHPOpen" in<br>
Funktion "_wmain"."<br>
(in English: unreferenced extern symbol "... )<br>
<br>
Can anybody please give me a hint what I might be doing wrong? Or, even<br>
better, send me a sample VC project using shapelib.dll?<br>
<br>
Thanks and kind regards,<br>
Raphael<br>
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