如何的确定调用的dll所在的路径

#if _MSC_VER >= 1300 // for VC 7.0
// from ATL 7.0 sources
#ifndef _delayimp_h
extern "C" IMAGE_DOS_HEADER __ImageBase;
#endif
#endif

HMODULE GetCurrentModule()
{
#if _MSC_VER < 1300 // earlier than .NET compiler (VC 6.0)

// Here's a trick that will get you the handle of the module
// you're running in without any a-priori knowledge:
// http://www.dotnet247.com/247reference/msgs/13/65259.aspx
MEMORY_BASIC_INFORMATION mbi;
static int dummy;
VirtualQuery( &dummy, &mbi, sizeof(mbi) );

return reinterpret_cast<HMODULE>(mbi.AllocationBase);

#else // VC 7.0

// from ATL 7.0 sources

return reinterpret_cast<HMODULE>(&__ImageBase);
#endif
}