FreePascal & Lazarus

I have a question is there any MQTT component for Lazarus that is free and not originally Delphi?

hi, i need help too, how to connect mssql database? i use mssqlconnection but error, can not load dblib.dll

hello everyone, has anyone made an HMAC SHA 512 application? I don't know how to start using it. I have installed the cryptolib4pascal and hashlib packages, but when I install...

Hi All! Any references or tips and tricks for getting Pascal programs to run on ESP32 or Arduino? I Need to make images on small displays with it. Thanks.

I'm full 0 in Pascal, who can help?

Hello everyone, does anyone have experience with IBX4Laz components to work Firebird with Lazarus? with master detail tables

Hellow anyone Have code that run external app in windows and that app takes time to load . Currently using Tprocess to do this but haven't finde any thing that hold my app to ...

Hello guys, i built my apps on win 7, it did not run completely on win 11, are there any tricks to eliminate this problems?

Hi. Im trying decrypt an rsa pkcs1 string with private key file with openssl unit . But after days not successful to do . Any one have example code ?

anyone using Neon parser for delphi, i fetch data from an api that returns a json which comes in 3 different forms, i have 3 data classes which represent a model of each of th...

I am using ibx4laz components, how to establish the master detail relationship?

my critical mission is to read messages from peripheral devices via mqtt. Each device sends 200 records per second. My program needs to add the mTS and device ID to each recor...

@Renat_Suleymanov Is there even something in the C or C++ realm we could import? I have to admit that this is not quite in my wheelhouse 😁

so strange... compiling one of my projects with Lazarus release - 530k get/free memory operations. compiled with january trunk - about 583r operations. Complie with february ...

First way: { TDTTelegramBot } TDTTelegramBot = class(TComponent) private FBot: TTelegramBot; protected public constructor Create(AOwner: TComponent); ove...

Very nice list of command line tools: https://www.youtube.com/watch?v=nCS4BtJ34-o I personally learned about: - atuin - Best history tool ever!!! - ble.sh - This is not menti...

Hi laz team i want install lazarus 3.2 on kubuntu 22.04 and ibget error dependency not satisfiable pls ???

Advice is needed. Who had the experience of creating own Design Time components in Lazarus. There is a non-visual class for which I want to try to make a non-visual DesignTi...

for example, i can deserialize a json to isuperobject, but how can i determine which is which? and above all, how can i cast it to the relevant class