test_dll.c

/*
* Moustafa Saleh ([email protected])
*
* Test DLL
* Compile:
* GCC: gcc test_dll.c -o test_dll_gcc.dll -shared -Wl,--out-implib,test_dll_gcc.a -DBUILDING_TEST_DLL
* CL:  cl test_dll.c kernel32.lib user32.lib /LD /D BUILDING_TEST_DLL
*/

#include <windows.h>

#ifdef BUILDING_TEST_DLL
#define TEST_DLL __declspec(dllexport)
#else
#define TEST_DLL __declspec(dllimport)
#endif

#ifdef __cplusplus
extern "C"
{
#endif

    TEST_DLL void __stdcall bar()
    {
        MessageBox(0, "Welcome, you're in bar()!", "Test DLL", 0);
    }

    TEST_DLL void __stdcall foo()
    {
        MessageBox(0, "Welcome, you're in foo()!", "Test DLL", 0);
    }

#ifdef __cplusplus
}
#endif