// assign an existing file descriptor and get it back from wxFile object
void Attach(int lfd) { Close(); m_fd = lfd; m_lasterror = 0; }
- void Detach() { m_fd = fd_invalid; }
+ int Detach() { int fdOld = m_fd; m_fd = fd_invalid; return fdOld; }
int fd() const { return m_fd; }
// read/write (unbuffered)