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Preemptive processes for 4D language

Automatically translated from English

Since 4D v11, the database server and SQL server both use preemptive multi-threading. Starting with 4D v13, the Web Server in Static mode also uses preemptive. Now with v15 R5, the 4D language can also be run in preemptive processes.

Product

Exchanging messages between processes

Automatically translated from English

4D v15 R5 introduces a new, simple and powerful way to exchange information between processes and also between processes and forms. This feature is based upon an asynchronous messaging system that allows processes and forms to be called and asked to execute methods with parameters in their own context.

Product

Add an icon to listbox header

Automatically translated from English

From 4D v15 R5, you can add an icon in the listbox header by programming. The image can come from a file, a picture variable or the picture library. This icon can be placed on the left or on the right side of the column.

Product

Single Sign On (SSO)

Automatically translated from English

For our customers running client-server applications on Windows, it is possible with 4D v15 R5 to enhance the end-user experience by using the Single Sign On feature, which basically allows your end-user logged into the system to also use their 4D application without being asked to re-enter any login/password.