B4J Tutorials

As promised, I present to you a trilogy of short tutorials allowing you to learn some of the basics of Google Compute Platform/Engine (GCP/E). The knowledge you gain from these tutorials will...

 

The recent addition of the anchor tag in BBCodeView opens up an efficient and effective way for creating documentation that works on a desktop and devices.
This tag allows you to scroll to any...

 

It is a B4J shortcut to kickstart this project. Copy attached Jar to your B4J library folder and then run the attached B4J project (chaos theory).

Adjust the sliders....

 

Less of a tutorial, more to point out another option which doesn't seem to have a mention anywhere on here yet....

I was searching for options to create a backup copy of an SQLite database. There...

 

It is based on this Github project. Have stripped it bare and compiled the code to a new Jar (OkapiJHS.jar) so that it will only handle DataMatrix barcodes (a pm request that I have...

 

Hi there

I am playing around with BANanoServer. So far so good.

Ceveat: PocketHost.IO is slow compared to hosting PocketBase yourself.

Watch this space.

 

Hi

It is safe, that in all _click events, you add an event.PreventDefault

As an example...

'Close input dialog
Private Sub mdlTasks_Cancel_Click (e As BANanoEvent)...

 

Hello.

I was struggling to see several ABMaterial servers visible from one IP on one port. I use it because I have one VPS test server for clients and I put there test versions for them. Each...

 

Spoiler: Intro

So I have created a few JRDC2 apps. I put them on a VPS as live demo. It is running on Ubuntu 18.04 64 bit. Today I wanted to make the app more secure by...

 

It is a B4J "kick-start" project for the JAR of this Github project. How to use it:
1. Copy the attached B4J project - the B4J code is very simple:

#Region Project Attributes...

 

Based on this post and in other internet searches:

(Attached sample project)

#Region Project Attributes
    #MainFormWidth: 600
    #MainFormHeight: 600
#End Region

Sub Process_Globals...

 

Just for the fun of it - I like to see what the UI of some Java projects looks like and how it reacts when in use. The easiest way (at least for me) is to kick start it via a simple B4J project...

 

Go to post #2 - all in B4J and no external lib required

It is based on this Github posting

 

In this tutorial you can learn how to extract files from a B4Xlib or Jar file.

You can select in the file menu the library type to open and extract.

For each...

 

Hi there

The purpose of this tutorial is showing the functionality of sending emails using EmailJS.

This was discussed on this link...

 

Simple Layout Designer (SLD) B4J application.

Check out message #31 for the latest update!

In this tutorial you can learn how to create a layout using the Simple...

 

This is meant to be a tutorial for you to easily distribute your applications developed in linux.
Through B4JPackager11 and B4JPackager v1.50 the excellent tool developed by Erel gives us the...

 

Since retiring some time ago, I have been thinking about creating stories that involve
computer operated robots which carry out actions and speech - like actors in a drama.

It would have at least...

 

I made 7 examples how to exchange data between B4x apps and php. I use the POSTSTRING method as it is simple, secure (get-methods will be logged with the data autmatically on the server...

 

Suppose we use the plotly library (https://plotly.com) as an example to add a chart.

When we look at their example on how to use it:

Plotly.newPlot( "chart", [{
    x: [1, 2, 3, 4, 5]...