Api.h File Reference

API export/import macros for cross-platform shared library symbol visibility. More...

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Macros
#define	API_EXTERN   extern "C"
	Applies C linkage when compiling as C++, or plain extern in C.
#define	API_EXPORT   API_EXTERN __declspec(dllexport)
	Marks a symbol for export from (or import into) a shared library.

Detailed Description

API export/import macros for cross-platform shared library symbol visibility.

Provides the API_EXTERN and API_EXPORT macros used to mark functions and variables that need C linkage and/or DLL export/import attributes on Windows.

Macro Definition Documentation

API_EXPORT

#define API_EXPORT   API_EXTERN __declspec(dllexport)

Marks a symbol for export from (or import into) a shared library.

On Windows, this resolves to __declspec(dllexport) when building the library and __declspec(dllimport) when consuming it (i.e. when DLL is defined). On other platforms it is equivalent to API_EXTERN.

API_EXTERN

#define API_EXTERN   extern "C"

Applies C linkage when compiling as C++, or plain extern in C.

Wraps symbols with extern "C" in C++ translation units so they are accessible from C code or from dynamic loaders that expect C-style names.