FMX – Page 3 – LecturePress

2 July 20212 July 2021

Creating and extracting ZIP archives in Delphi

Since version XE2, Delphi is shipped with the built-in unit “System.Zip” for creating, editing and extracting ZIP compressed files. It is based on the RTL, and it can work slightly with VCL and FMX frameworks on all supported targets.

In this tutorial, we will show you what are the abilities of this unit and how to use it properly.

18 June 202119 July 2022

Using the Filter in Delphi datasets

One of the best implemented features in Delphi datasets is the filter (records filtering). This built-in tool work by combining SQL filtering commands and string options like case sensitivity.

In this quick tutorial, will show you how to use the filter effectively.

10 February 20211 March 2021

Using platform-specific paths in Delphi

The TPath class from System.IOUtils unit give you the ability to access system and application specific paths and folders, like the user folders (My documents, My music, My pictures, …).

30 January 202114 March 2021

Comparing sizes of files in Delphi

Delphi has many system routines that enable you to handle and work on files and storage contents. Also, these routines can be used on all supported platforms, provided by the System unit and sub-units.

10 January 202116 July 2021

Using SaveState service in Delphi apps

In Delphi FMX, it is possible to save and retrieve data form the last state of your app.

This mean that, when your app is closed (on Windows and macOS) or moved to the background (on Android), its state’s data such as form’s properties, controls’s inputs and values can be stored to a temporar or permanent stream storage. Then, on the next form creation, these data are loaded and used again.

Let’s see how it can work through this quick tutorial :

26 December 202013 July 2021

Using Windows Registry in Delphi VCL and FMX apps

On Microsoft Windows, the Registry represent the main component to store, retrieve and customize configurations and settings.