Get DLL path at runtime

Question

I want to get a dll\'s directory (or file) path from within its code. (not the program\'s .exe file path)

I\'ve tried a few methods I\'ve found:

Answer 1

Here's a Unicode, revised version of the top voted answer:

CStringW thisDllDirPath()
{
    CStringW thisPath = L"";
    WCHAR path[MAX_PATH];
    HMODULE hm;
    if( GetModuleHandleExW( GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | 
                            GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
                            (LPWSTR) &thisDllDirPath, &hm ) )
    {
        GetModuleFileNameW( hm, path, sizeof(path) );
        PathRemoveFileSpecW( path );
        thisPath = CStringW( path );
        if( !thisPath.IsEmpty() && 
            thisPath.GetAt( thisPath.GetLength()-1 ) != '\\' ) 
            thisPath += L"\\";
    }
    else if( _DEBUG ) std::wcout << L"GetModuleHandle Error: " << GetLastError() << std::endl;

    if( _DEBUG ) std::wcout << L"thisDllDirPath: [" << CStringW::PCXSTR( thisPath ) << L"]" << std::endl;       
    return thisPath;
}