{"id":3393,"date":"2025-04-18T06:31:54","date_gmt":"2025-04-18T06:31:54","guid":{"rendered":"https:\/\/webprojects.cloud\/wordpress\/splatco\/?post_type=spl_knowledgebase&#038;p=3393"},"modified":"2025-06-10T11:05:43","modified_gmt":"2025-06-10T11:05:43","slug":"the-main-loop","status":"publish","type":"spl_knowledgebase","link":"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/tutorials-application-notes-and-white-papers\/tutorial-splat-call-home-sx10509-programming\/example-splat-call-home-sandbox-program\/the-main-loop\/","title":{"rendered":"The main loop"},"content":{"rendered":"\n<p>If you understand how each of the above building blocks works, it will be very easy to understand the higher level parts of the program. The program contains just one MultiTrack task, called&nbsp;<code>ServerUpdate<\/code>, apart from the transitory task used by the low level&nbsp;<code>SCH_SetCommand<\/code>&nbsp;function.<\/p>\n\n\n\n<p>The&nbsp;<code>ServerUpdate<\/code>&nbsp;task incorporates 3 separate &#8220;tests&#8221;, which interact with the sandbox script on our server in 3 different ways. Each test is triggered by pushing a button.&nbsp;<code>ServerUpdate<\/code>&nbsp;contains a simple loop that sits looking for a button press. When one is detected it jumps to the corresponding code segment. Here&#8217;s that loop code:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">WAFbutton:                         \n        Yieldtask\n        GoIfInK         iBtnA,Test1\n        GoIfInK         iBtnB,Test2\n        GoIfInK         iBtnC,Test3\n        GoTo            WAFbutton<\/pre>\n\n\n\n<p>Each code segment (test) does a&nbsp;<code>GoTo<\/code>&nbsp;back to&nbsp;<code>WAFbutton<\/code>&nbsp;when it is done.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you understand how each of the above building blocks works, it will be very easy to understand the higher level parts of the program&#8230;.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3387,"menu_order":4,"template":"","class_list":["post-3393","spl_knowledgebase","type-spl_knowledgebase","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The main loop - SPLat Controls<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The main loop - 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