#91 get and set values for all controls/indicators and textbox

graphics/elements/controls/start_button.lua

@@ -3,7 +3,6 @@
 local tcd     = require("scada-common.tcallbackdsp")
 
 local core    = require("graphics.core")
-
 local element = require("graphics.element")
 
 ---@class start_button_args
@@ -65,6 +64,12 @@ local function start_button(args)
         args.callback()
     end
 
+    -- set the value
+    ---@param val boolean new value
+    function e.set_value(val)
+        if val then e.handle_touch(core.events.touch("", 1, 1)) end
+    end
+
     return e.get()
 end