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Welcome to B4X forum!
B4X is a set of simple and powerful cross platform RAD tools:
B4A
(free) - Android development
B4J
(free) - Desktop and Server development
B4i
- iOS development
B4R
(free) - Arduino, ESP8266 and ESP32 development
All developers, with any skill level, are welcome to
join the B4X community
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B4J - Desktop, Server and Raspberry Pi
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B4J Question
Solved
How to Decrease Memory Consumption using HugeImageView
xulihang
Dec 22, 2025
Answers
13
Views
1K
Dec 23, 2025
xulihang
ABMaterial: java.nio.channels.ClosedChannelException - how to suppress
JackKirk
Jul 22, 2025
Answers
17
Views
2K
Dec 23, 2025
JackKirk
Solution with assistance of MS Copilot??? ABMaterial: java.nio.channels.ClosedChannelException - how to suppress
JackKirk
Dec 21, 2025
Answers
0
Views
625
Dec 21, 2025
JackKirk
[Web][SithasoDaisy5]
Sivasaravanan
Mar 19, 2025
Answers
5
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1K
Dec 18, 2025
Mashiane
How do I interface with various e-commerce sites?
amorosik
Dec 18, 2025
Answers
2
Views
509
Dec 18, 2025
DonManfred
D
InvocationTargetException error [not solved but problem went away]
Didier99
Dec 12, 2025
Answers
5
Views
1K
Dec 17, 2025
Didier99
D
Solved
Zoom Image with Mouse Cursor as the Center in ScrollPane
xulihang
Dec 15, 2025
Answers
7
Views
1K
Dec 17, 2025
xulihang
Setting IDE Font issue
mcqueccu
Dec 15, 2025
Answers
4
Views
767
Dec 16, 2025
mcqueccu
J
About library routine ArchiverPlus (ProBundle)
johnerikson
Dec 16, 2025
Answers
1
Views
446
Dec 16, 2025
teddybear
A
TextField.Text vs String
a n g l o
Dec 15, 2025
Answers
2
Views
672
Dec 16, 2025
a n g l o
A
ABMaterial, ws.UpgradeRequest.RemoteAddress does not work behind an AWS EC2 application load balancer
JackKirk
Dec 15, 2025
Answers
0
Views
428
Dec 15, 2025
JackKirk
D
CallSubDelayed causes exception for sub not found [problem fixed itself...]
Didier99
Dec 11, 2025
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3
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908
Dec 12, 2025
Didier99
D
Encryption library missing?
TorontoJim
Dec 11, 2025
Answers
2
Views
553
Dec 12, 2025
TorontoJim
[Web][SithasoDaisy5] Questions & Answers
Mashiane
May 1, 2025
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14
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3K
Dec 11, 2025
Mashiane
D
Hex conversion problem [SOLVED]
Didier99
Dec 8, 2025
Answers
12
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2K
Dec 9, 2025
Swissmade
AI generated code?
Beja
Dec 8, 2025
Answers
2
Views
517
Dec 9, 2025
Beja
Solved
[solved] Issue with jSerial v1.40 running on Linux
aminoacid
Dec 6, 2025
Answers
4
Views
1K
Dec 8, 2025
aminoacid
Q
How to pass parameters in cmd to run b4j programs
qqqqw
Dec 7, 2025
Answers
1
Views
437
Dec 7, 2025
peacemaker
*.jar file not recognized in External Library path
TorontoJim
Dec 6, 2025
Answers
5
Views
804
Dec 6, 2025
TorontoJim
Autonomous Packages (put several apps in one installation)
virpalacios
Dec 5, 2025
Answers
3
Views
582
Dec 6, 2025
Erel
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