https://oxpedia.org/wiki/index.php?title=AppSuite:Writing_a_notification_area_plugin_(7.6.x)
AppSuite:Writing a notification area plugin (7.6.x) - Open-Xchange
notification areaappsuitewriting
https://lists.debian.org/debian-xfce/2014/12/msg00037.html
[Pkg-xfce-devel] Bug#773238: xfce4-panel: notification-area broken?
notification areapkgxfcedevelbug
https://community.teamviewer.com/English/discussion/47659/~/English/categories/community-blog-en
TeamViewer window and icon in notification area is missing - TeamViewer Community
Version: TeamViewer 13 (32 Bit) OS: Windows 10 After starting TeamViewer.exe, the TeamViewer window does not open and no icon is displayed in the notification...
icon innotification areateamviewerwindowmissing
https://help.tenderapp.com/discussions/suggestions/445-site-wide-notification-bar
Site-wide notification bar / Suggestions / Discussion Area - Tender Support
site widenotification bardiscussion areasuggestionstender