{"id":2534,"date":"2025-04-16T05:14:22","date_gmt":"2025-04-16T05:14:22","guid":{"rendered":"https:\/\/webprojects.cloud\/wordpress\/splatco\/?post_type=spl_knowledgebase&#038;p=2534"},"modified":"2025-06-10T11:17:47","modified_gmt":"2025-06-10T11:17:47","slug":"connectevent","status":"publish","type":"spl_knowledgebase","link":"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/programming-reference\/instructions-arranged-by-function\/hash-commands-and-functions\/hmi-controller-instructions\/connectevent\/","title":{"rendered":"# ConnectEvent()"},"content":{"rendered":"\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Valid For<\/th><td>#HMI<\/td><\/tr><tr><th>Applies To<\/th><td>HMI430<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>This instruction registers a subroutine that will be called when specific events occur.<\/p>\n\n\n\n<h6 class=\"wp-block-heading\">Function Prototype<\/h6>\n\n\n\n<pre class=\"wp-block-preformatted\"># ConnectEvent(<br>   ev:EventHandler )<\/pre>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Parameter<\/th><th>Option<\/th><th>Description<\/th><\/tr><tr><th>ev<\/th><td>mandatory&nbsp;&nbsp;&nbsp;<\/td><td>The name of the subroutine that will be called when an event occurs.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h6 class=\"wp-block-heading\">Description<\/h6>\n\n\n\n<p>On a controller, this event is called for the reasons in the table below.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Event<\/th><th>Description<\/th><th>Parameters<\/th><\/tr><tr><td>Backlight Change&nbsp;&nbsp;&nbsp;<\/td><td>This event signals a change in the backlight state, meaning the backlight is now either&nbsp;<strong>HIGH<\/strong>,&nbsp;<strong>MEDIUM<\/strong>&nbsp;or&nbsp;<strong>OFF<\/strong>.&nbsp; The backlight state as well as the actual level is passed in the parameter list.<\/td><td>State,Level<\/td><\/tr><tr><td>PowerOnTouch<\/td><td>This event signals the user has been pressing the touch screen for 2 seconds since power on.\u00a0 This is useful for activating\u00a0<a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/product-documentation\/product-documentation-controllers\/hmi430-700-product-documentation\/hmi430-700-touchscreen-calibration\/\">touch screen calibration<\/a>.<\/td><td>nil<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>A module that looks after processing the event message is available for download here:<\/p>\n\n\n\n<p><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/programming-reference\/instructions-arranged-by-function\/hash-commands-and-functions\/hmi-controller-instructions\/connectevent\/\">Download ui_utils.spt<\/a><\/p>\n\n\n\n<div class=\"wp-block-buttons is-horizontal is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-499968f5 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-text-align-center wp-element-button\" href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/wp-content\/uploads\/2025\/04\/ui_utils.spt\">Download ui_utils.spt<\/a><\/div>\n<\/div>\n\n\n\n<p>Either\u00a0#Include\u00a0this file or place it in a\u00a0<a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/programming-reference\/instructions-arranged-by-function\/hash-commands-and-functions\/hmi-controller-instructions\/utilities\/ui_utils-spt\/\">build script<\/a>.\u00a0 Full details on ui_utils.spt can be found on\u00a0<a href=\"https:\/\/www.splatco.com\/skb\/3592.htm\">this <\/a><a href=\"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/programming-reference\/instructions-arranged-by-function\/hash-commands-and-functions\/hmi-controller-instructions\/utilities\/ui_utils-spt\/\">page<\/a>.<\/p>\n\n\n\n<p>NOTE: ConnectEvent() in a touch screen controller (like the HMI430) is very different to ConnectEvent() in the Android &amp; Windows implementation of SimpleHMI.&nbsp; After all, the LCD is&nbsp;<strong>always<\/strong>&nbsp;connected in a touch screen controller, therefore it&#8217;s used for different things.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Valid For #HMI Applies To HMI430 This instruction registers a subroutine that will be called when specific events occur. Function Prototype # ConnectEvent( ev:EventHandler )&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2505,"menu_order":9,"template":"","class_list":["post-2534","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># ConnectEvent() - 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=\"# ConnectEvent() - SPLat Controls\" \/>\n<meta property=\"og:description\" content=\"Valid For #HMI Applies To HMI430 This instruction registers a subroutine that will be called when specific events occur. 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