Sub Button1_Click
xui.MsgboxAsync("Hello world!", "B4X")
jPrinter = getPrinter
'Dim callback As Object = jPrinter.CreateEvent("com.printer.posbank.Printer", "handleMessage", Null)
'Dim callback As Object = jPrinter.CreateEvent("com.printer.posbank.Printer", "PrinterCallback", Null)
jPrinter.RunMethodJO("findUsbPrinters",Null)
End Sub
Sub handler_Event (msg As Object) As Object
Log (msg)
Return Null
End Sub
Sub callback_Event (msg As Object) As Object
Log (msg)
Return Null
End Sub
Sub PrinterCallback_Event (msg As Object) As Object
Log (msg)
Return Null
End Sub