sysnotify - Creates a notification window with a title and message.

       The  tksysnotify command creates a platform-specific system notification alert. Its intent is to provide
       a brief, unobtrusive notification to the user by popping up a window that briefly appears in a corner  of
       the screen.

       Here is an example of the tksysnotify code:

              tk sysnotify "Alert" \
                    "This is just a test of the Tk System Notification Code."

       notify, alert

                                                        n                                          tk(sysnotify)

       sysnotify - Creates a notification window with a title and message.

       The  macOS  and  Windows  versions  are  native implementations using system API's. The X11 version has a
       conditional dependency on libnotify, and falls back to a Tcl-only  implementation  if  libnotify  is  not
       installed.  On each platform the notification includes a platform-specific default image to accompany the
       text.

       macOS  The macOS version will request permission from the user to authorize notifications. This  must  be
              activated in Apple's System Preferences Notifications section.

              If deploying an application using the standalone version of Wish.app, setting the bundle ID in the
              applications  Info.plist file to begin with “com” seems necessary for notifications to work. Using
              a different prefix for  the  bundle  ID,  such  as  something  like  “tk.tcl.tkchat”,  will  cause
              notifications to silently fail.

       Windows
              The  image  is  taken  from the system tray, i.e., sysnotify can only be called when a systray was
              installed.

tksysnotifytitlemessage
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