message: Fix dpi scaling issues
diff: @@ -57,7 +57,20 @@ const int kSearchBarWidth = 250;
  void openFile(const QString& path)
  {
  +#if defined(Q_OS_WIN32)
  + // The QT_SCREEN_SCALE_FACTORS environment variable will be passed to the
  + // application invoked from here, which may cause scaling problems.
  + // So we temporary reset that and restore back.
  + const char *factors = g_getenv("QT_SCREEN_SCALE_FACTORS");
  + g_setenv("QT_SCREEN_SCALE_FACTORS", "1", 1);
  +#endif
  +
  ::openInNativeExtension(path) || ::showInGraphicalShell(path);
  +
  +#if defined(Q_OS_WIN32)
  + g_setenv("QT_SCREEN_SCALE_FACTORS", factors, 1);
  +#endif
  +
  #ifdef Q_OS_MAC
  MacImageFilesWorkAround::instance()->fileOpened(path);
  #endif
  