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Compiler-specific Features
/* This is the declaration for use in a shared library that does not contain */
/* the definition */
__declspec(dllimport) extern int mymod_get_version(void);
As a result of the following macro, a non-defining translation unit in a defining link unit
sees __declspec(dllexport).
/* mymod.h - interface to my module */
#ifdef BUILDING_MYMOD
#define MYMOD_API __declspec(dllexport)
#else /* not BUILDING_MYMOD */
#define MYMOD_API __declspec(dllimport)
#endif
MYMOD_API int mymod_get_version(void);
See also
• __declspec(dllimport)
• __declspec(notshared) on page 4-29
• --export_all_vtbl, --no_export_all_vtbl on page 2-55
• --use_definition_visibility on page 2-95 in the Linker Reference Guide.
4.2.2 __declspec(dllimport)
The __declspec(dllimport) attribute imports a symbol through the dynamic symbol
table when building DLL libraries.
Usage
When an inline function is marked __declspec(dllimport), the function definition in
this compilation unit might be inlined, but is never generated out-of-line. An out-of-line
call or address reference uses the imported symbol.
You can only use __declspec(dllimport) on extern functions and variables, and on
classes.
When a class is marked __declspec(dllimport), its static data members and member
functions are all imported. When individual static data members and member functions
are marked with __declspec(dllimport), only those members are imported.
Restrictions
If you mark a class with __declspec(dllimport), you cannot then mark individual
members of that class with __declspec(dllimport).
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