Hi
I have implemented a barcode scanning application. I have enabled the scanner and after the barcode is scanned, i am expecting it to come to the callback function. But for some reasons it is not invoking the callback function.
Here is the code to set the callback function.
asl.events.subscribe(asl.events.types.loaded, function() {
scanner.enable();
scanner.decodeEvent = 'decodeEvent(%json)';
asl.options([
{
title: 'About',
callback: function(t){ alert('This is sample scanner using application.'); }
},
{
title: 'More',
callback: function(t){ alert('It uses InvokeMETAFunction.'); }
},
{
title: 'Quit',
callback: exit
}
]);
});
The callback function is below
function decodeEvent(jsonObject) {
alert("decode event " +jsonObject );
switch(jsonObject.type){
case '0x3c': // 128 Code
store = jsonObject.data;
break;
case '0x37': // Code 3 of 9
order = jsonObject.data;
break;
}
}
Anyone who has implemented this functionality, can you tell what could be the reason or the error.
Thanks
Karun
