feat(Core/CLI): Flash WorldServer at start (Windows only) (#8477)

src/server/worldserver/CommandLine/CliRunnable.cpp

@@ -147,6 +147,19 @@ void CliThread()
     if (sConfigMgr->GetOption<bool>("BeepAtStart", true))
         printf("\a");                                       // \a = Alert
 
+#if AC_PLATFORM == AC_PLATFORM_WINDOWS
+    if (sConfigMgr->GetOption<bool>("FlashAtStart", true))
+    {
+        FLASHWINFO fInfo;
+        fInfo.cbSize = sizeof(FLASHWINFO);
+        fInfo.dwFlags = FLASHW_TRAY | FLASHW_TIMERNOFG;
+        fInfo.hwnd = GetConsoleWindow();
+        fInfo.uCount = 0;
+        fInfo.dwTimeout = 0;
+        FlashWindowEx(&fInfo);
+    }
+#endif
+
     // print this here the first time
     // later it will be printed after command queue updates
     PrintCliPrefix();

src/server/worldserver/worldserver.conf.dist

@@ -1186,6 +1186,14 @@ Event.Announce = 0
 
 BeepAtStart = 1
 
+#
+#    FlashAtStart
+#        Description: Flashes in taskbar when the world server finished starting. (Works on Windows only)
+#        Default:     1 - (Enabled)
+#                     0 - (Disabled)
+
+FlashAtStart = 1
+
 #
 #    Motd
 #        Description: Message of the Day, displayed at login.