======Get_TabOnTop======
Read properties of the current tab.


===Parameter===
  * //none//


====JSON-Source====

===Command===
<code>
{
  "Get_TabOnTop":{}
}
</code>

===Result (Example)===
<code>
{
  "Result":{
    "command":"Get_TabOnTop",
    "status":"success",
    "values":{
      "tabhandle":245977421,
      "ontop":true,
      "changed":false,
      "locked":false,
      "caption":"357 Magnum",
      "file":"C:/files/357 Magnum.grtload"
    }
  }
</code>