Convert Java LCD library to B4A library

Start
Obtain service SublcdManager sublcdManager=(SublcdManager)getSystemService("sublcd");
Register
registerEvent(Context context);

After successfully registered, the application can response to the broadcast event of the knob (channel switch) and buttons, also enable to draw contents (text/image) to the screen. Note: Make sure the carried parameter string in the broadcast of the knob which you are about to use equals to the package name of the current application.
Unregister when about to exit unregisterEvent(Context context);

After unregistered, the application has no permission to draw contents to the screen.
End

* Activity (main) Resume **
java.lang.Exception: Sub lcd_onreceive was not found.
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:197)
    at anywheresoftware.b4a.BA$2.run(BA.java:365)
    at android.os.Handler.handleCallback(Handler.java:815)
    at android.os.Handler.dispatchMessage(Handler.java:104)
    at android.os.Looper.loop(Looper.java:194)
    at android.app.ActivityThread.main(ActivityThread.java:5643)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
**

Sub LCD_onReceived(info As String)
    Log($"LCD_onReceived(${info})"$)
End Sub

Sub LCD_onReceive(info As String)
    Log($"LCD_onReceive(${info})"$)
End Sub