Method frameMargin

app/src/Platform/NativeWindow_CSD.cpp:145–158

* @brief Returns the horizontal/bottom shadow margin reserved by CSD around the content area. */

 * @brief Returns the horizontal/bottom shadow margin reserved by CSD around the content area.
 */
int NativeWindow::frameMargin(QObject* window)
{
  auto* w = qobject_cast<QWindow*>(window);
  if (!w)
    return 0;

  if (isWindows11() || !m_csdEnabled)
    return 0;

  if (auto* decorator = s_decorators.value(w, nullptr))
    return decorator->shadowMargin();

  return m_csdShadowEnabled ? CSD::ShadowRadius : 0;
}

/**
 * @brief Returns the total top inset (shadow + CSD titlebar) reserved above the content area.