_open_osfhandle failed to open STD_OUTPUT_HANDLE

_open_osfhandle always returns error when passing GetStdHandle(STD_OUTPUT_HANDLE) to it. However, STD_ERROR_HANDLE works fine.

full code snippet:

HANDLE output_handle = GetStdHandle(STD_OUTPUT_HANDLE);
if (output_handle==INVALID_HANDLE_VALUE)
{
    std::stringstream ss;
    ss << "GetStdHandle return " << GetLastError();
    OutputDebugString(ss.str().c_str());
}
else
{
    std::cout.sync_with_stdio(true);
    int m_nCRTOut= _open_osfhandle( (intptr_t)output_handle, 0 );
    if (m_nCRTOut==-1)
    {
        std::stringstream ss;
        ss << "_open_osfhandle(" <<(int) output_handle << ") return " << errno << ", "
            << strerror( errno);
        OutputDebugString(ss.str().c_str()); //  _open_osfhandle(7) return 9, Bad file descriptor
    }
    else
    {
        FILE* m_fpCRTOut = _fdopen( m_nCRTOut, "w" );
        if (!m_fpCRTOut)
        {
            std::stringstream ss;
            ss << "_fdopen(" <<(int) m_nCRTOut << ") return " << errno << ", "
                << strerror( errno);
            OutputDebugString(ss.str().c_str());

        }
        else
        {
            *stdout = *m_fpCRTOut;
            setvbuf( stdout, NULL, _IONBF, 0 );
        }
    }

}
std::cout.clear();

Btw, a VK_RETURN key event needs to be programmatically fired in order to detach from console.

if (m_attach_console)
{
    FreeConsole();
    m_attach_console = FALSE;
     //simulate return pressing
    INPUT input;
    memset(&input,0,sizeof(input));
    input.type=INPUT_KEYBOARD;
    input.ki.wVk=VK_RETURN;
    SendInput(1,&input,sizeof(input));
    input.ki.dwFlags=KEYEVENTF_KEYUP;
    SendInput(1,&input,sizeof(input));
}