Examples Using _Export, #pragma export and _declspec

You must always export constructors and destructors.

Use _Export or #pragma export in your source files to specify the classes and functions (including member functions) that you want to export from your DLL. For example:

   class triangle : public area

   {

      public:

         static int _Export objectCount;

         double _Export getarea();

         _Export triangle::triangle(void);

   };

exports the getarea method and the constructor for class triangle. Alternatively, you could use #pragma export:

   #pragma export(triangle::objectCount(),,1)

   #pragma export(triangle::getarea(),,1)

   #pragma export(triangle::triangle(void),,2)

 

In Windows, you can also use __declspec to export the static data objectCount :

   class triangle : public area

   {

      public:

         static int __declspec(dllexport) objectCount;

         double _Export getarea();

         _Export triangle(void);

   };


Export Functions from a DLL