{"id":3768,"date":"2025-04-21T09:11:46","date_gmt":"2025-04-21T09:11:46","guid":{"rendered":"https:\/\/webprojects.cloud\/wordpress\/splatco\/?post_type=spl_knowledgebase&p=3768"},"modified":"2025-06-10T05:22:50","modified_gmt":"2025-06-10T05:22:50","slug":"hmi-android-windows","status":"publish","type":"spl_knowledgebase","link":"https:\/\/webprojects.cloud\/wordpress\/splatco\/knowledgebase\/deprecated\/hmi-android-windows\/","title":{"rendered":"# HMI Android & Windows"},"content":{"rendered":"\n

The\u00a0HMI<\/a><\/code>\u00a0hash command is used to control a SPLat “Simple HMI”. This can be either the\u00a0SimpleHMI<\/a>\u00a0function built into SPLat\/PC, or the SimpleHMI Android (smartphone) app. In either case the SPLat program is identical, so whatever works inside SPLat\/PC will also work when an Android device is used as an HMI.<\/p>\n\n\n\n

Example:<\/p>\n\n\n\n

# HMI    Cursor(5,0) Text(\"Hello World\")<\/pre>\n\n\n\n
will place the HMI cursor at row 5, column 0 and display the text “Hello World” (providing the serial port has been suitably initialized and the required connection to an HMI device exists).<\/p>\n\n\n\n
In the above code line Cursor<\/code> and Text<\/code> are hash functions that specify what to do with the HMI. All the hash functions that are possible with the HMI<\/code> hash command are listed in this section.<\/p>\n\n\n\n
Event<\/a>\u00a0handlers<\/h6>\n\n\n\n
Some of the HMI-related hash functions include a parameter for specifying “Event handlers”. Example:<\/p>\n\n\n\n
# HMI    ButtonEvent(, 3, 4, 5, 10, \"Test Button\", MyButtonEvent)<\/pre>\n\n\n\n
When the SPLat controller executes this hash command, it will display button number 1 on the HMI at row 3, column 4, with height 5 and width 10. The label on the button will be “Test button”. When an\u00a0Enduser<\/a>\u00a0clicks the button, the SPLat will automatically execute a\u00a0GoSub MyButtonEvent<\/code>. It is then up to you to have a subroutine at a line labelled\u00a0MyButtonEvent<\/code>\u00a0which does whatever you want to do when the user clicks the button, then executes a\u00a0Return<\/code>. That subroutine is called an Event handler, because it “handles” the “button_click event”.<\/p>\n\n\n\n
Event handlers are possible only if your program uses\u00a0MultiTrack<\/a>. The feature uses just one MultiTrack task.<\/p>\n\n\n\n
SimpleHMI Tutorial<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
The\u00a0HMI\u00a0hash command is used to control a SPLat “Simple HMI”. This can be either the\u00a0SimpleHMI\u00a0function built into SPLat\/PC, or the SimpleHMI Android (smartphone) app. In…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":891,"menu_order":1,"template":"","class_list":["post-3768","spl_knowledgebase","type-spl_knowledgebase","status-publish","hentry"],"acf":[],"yoast_head":"\n# HMI Android & Windows - 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=\"# HMI Android & Windows - SPLat Controls\" \/>\n<meta property=\"og:description\" content=\"The\u00a0HMI\u00a0hash command is used to control a SPLat “Simple HMI”. 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