C / C++ / MFC

int WINAPI WinMain(
  HINSTANCE hInstance,      // handle to current instance <---   
  HINSTANCE hPrevInstance,  // handle to previous instance
  LPSTR lpCmdLine,          // command line
  int nCmdShow              // show state
);

#include <iostream>
#include <windows.h>
 
namespace
{
 
HMODULE GetHandleToModuleWhichContainsThisFunction()
{
    HMODULE hMod = NULL;
 
    const void *pFunc = &GetHandleToModuleWhichContainsThisFunction;
    MEMORY_BASIC_INFORMATION mbi;
    if ( VirtualQuery(pFunc, &mbi, sizeof(mbi)) == sizeof(mbi) )
    {
       hMod = reinterpret_cast<HMODULE>(mbi.AllocationBase);
    }
 	
    return hMod;	
}
 
HMODULE GetHandleToInstanceWhichContainsThisFunction()
{
    return reinterpret_cast<HINSTANCE>(GetHandleToModuleWhichContainsThisFunction());
}
 
} // namespace
 
int main()
{
    HMODULE hMod = GetHandleToModuleWhichContainsThisFunction();
 
    using namespace std;
    char Path[MAX_PATH];
    GetModuleFileName(hMod, Path, sizeof(Path)/sizeof(Path[0]));
    cout << Path << endl;
 
    return 0;
}