c++windowswinapigetprocaddress

Why does GetProcAddress not work with OutputDebugString function

I have been trying to use GetProcAddress with several functions from kernel32.dll. It worked fine, except with "OutputDebugString" function.

My code:

typedef void(WINAPI *LPGETNUMBER)(LPCTSTR);

int main() {
    const LPGETNUMBER pAddr = (LPGETNUMBER)GetProcAddress(GetModuleHandle((LPCSTR)("kernel32.dll")), "OutputDebugString");
    if (NULL == pAddr) {
        int32_t nLastErrorCode = GetLastError();
    }
}
Solution

  • There is no such function. The exports are named OutputDebugStringA and OutputDebugStringW.

    https://msdn.microsoft.com/en-us/library/windows/desktop/aa363362