VC++链接器问题
我在一个项目中使用草莓 Perl 和 GDI+。一切都已正确编译，我可以在调试模式下运行 perl 脚本。但是，当我构建项目的发行版本然后运行它时，它会给出以下错误
The procedure entry point GdipGetImageThumbnail could not be located in the
dynamic link library perl512.dll.
，并且应用程序在说“OK”时退出。我无法理解为什么系统在 gdiplus.lib 中定义的 perl512.dll 中搜索 API GdipGetImageThumbnail 。
I am using strawberry perl and GDI+ in a project. Everything is getting compiled properly and I am able to run perl scripts in the Debug mode. But when I am building a release version of my project and then running it, it gives following error
The procedure entry point GdipGetImageThumbnail could not be located in the
dynamic link library perl512.dll.
and application quits on saying OK. I am unable to understand why the system is searching for the API GdipGetImageThumbnail in perl512.dll when it is defined in gdiplus.lib.
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如果您使用的是视觉工作室。右键单击相关项目。转到属性并从链接器分支开始，检查调试和发布配置的所有字段是否相同（在适当的情况下）。如果不成功，请检查 c/c++ 和配置属性。检查项目依赖项/引用也是值得的。如果调试版本可以工作，那么发布版本就没有理由不工作。
检查跨 DLL 引用的任何类是否被定义为外部类也是明智之举。这可能有用：http://msdn .microsoft.com/en-us/library/799kze2z(v=vs.80).aspx#3
希望这会有所帮助。
If you are using visual studio. Right click the projects in question. Go to properties and starting with the linker branch, check that all the fields are the same (where appropraite) for both Debug and Release configurations. If no success, check c/c++ and configuration properties. It would also be worth while to check the project dependencies / references. If the debug version is working, there is no reason for the release to not work.
It may also be wise to check that any classes referenced accross DLLs are defined as external. This may be useful : http://msdn.microsoft.com/en-us/library/799kze2z(v=vs.80).aspx#3
Hope this helps.
我的感觉告诉我，您滥用了
AFX_EXT_CLASS宏。http://support.microsoft.com/kb/128199
My senses tell me that you are misusing the
AFX_EXT_CLASSmacro.http://support.microsoft.com/kb/128199