Working with JSON Pointers
In 4D v16 R4, we enriched object commands so you can validate JSON objects. 4D v16 R5 is going even further by introducing the support of JSON pointer...
October 30, 2017
1 min read
Programming
Programmatically manage headers and footers in 4D Write Pro
We've received several customer requests to provide the ability to use the 4D Write Pro template with headers and footers to create other documents ba...
October 16, 2017
1 min read
Don’t be afraid of undefined values
With 4D v16 R4, we introduced Object Notation which is a great enhancement to the 4D language: your code is fast, flexible, efficient and elegant! Thi...
October 11, 2017
1 min read
Passing data back and forth between forms
Wouldn't it be great if you could just open a form and pass it some parameters to initialize your form objects? What about being able to also get the ...
October 6, 2017
1 min read
Retrieve the license information by programming
When you perform analysis, reporting or debugging of your server application you may want to know the number of available clients, the number of consu...
July 26, 2017
1 min read
Create your own process and user monitoring
You need to get the list of processes running on your 4D server, 4D remote or 4D standalone to create your own Administration Window? You want to know...
July 25, 2017
1 min read
Define the tab order by programming
Here are 2 very common developer needs: 1. Depending on the user criteria, you want to rearrange the objects in the form. – 2. Depending on the select...
July 24, 2017
1 min read
New type supported by 4D: Null
4D introduces a new Null type to ease the management of objects and collections. Thanks to the null value, you can represent a missing value and easil...
July 19, 2017
1 min read
4D initiates a new variable type: Collection
4D v16 R4 introduces a new type of variable called Collection. What are these variables intended for? Like Objects or BLOBs, collections can be used t...
July 18, 2017
1 min read
Add an hyperlink to your company logo in 4D Write Pro
A less well known usage of 4D Write Pro product is the production of HTML emails. In fact you can create a 4D Write Pro document including 4D expressi...
July 6, 2017
1 min read