Wndproc

Dows anyone know how to define the WNDPROC type?

I define an API function as so:

Code:

---

#define WINUSERAPI
#define IN

WINUSERAPI void * __stdcall LoadIcon(IN void  *hInstance, IN const unsigned short *lpIconName);

---

I get this error:

--------------------Configuration: Test - Win32 Debug--------------------
Compiling...
Test.cpp
Linking...
Test.obj : error LNK2001: unresolved external symbol "void * __stdcall LoadIcon(void *,unsigned short const *)" (?LoadIcon@@YGPAXPAXPBG@Z)
Debug/Test.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

Test.exe - 2 error(s), 0 warning(s)

Any Ideas?

This is because a C++ compiler gives the functions other internal names than a C compiler. Write
extern "C" WINUSERAPI void * __stdcall LoadIcon(IN void *hInstance, IN const unsigned short *lpIconName);

This will tell the compiler to use the C naming convention.