Method is_enabled

src/common/WinApiControls.cpp:27–29

void WinBase::set_enabled(bool enabled) { EnableWindow(m_hwnd, enabled ? TRUE : FALSE); }

bool WinBase::is_enabled() const {
  return IsWindowEnabled(m_hwnd) != FALSE;
}

void WinBase::init(HWND hwnd) {
  m_hwnd = hwnd;