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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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Adding libraries
LukaszK
Dec 26, 2025
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3
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496
Dec 27, 2025
aeric
Solved
Putting HugeImageView Inside a ScrollPane
xulihang
Dec 24, 2025
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1
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576
Dec 26, 2025
xulihang
Solved
JRDC2 server IP Address
AKJammer
Dec 23, 2025
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5
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617
Dec 25, 2025
aeric
J
Solved
[SOLVED] Problem with jSD_OpenMaps and B4JPackager11 Version 1.40
javiers
Dec 24, 2025
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5
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521
Dec 24, 2025
javiers
J
C
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CallSubDelayed timings
Chris2
Dec 23, 2025
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438
Dec 24, 2025
Erel
P
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Scroll Pane
Peter Lewis
Dec 23, 2025
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4
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691
Dec 24, 2025
TILogistic
P
MSSQL DRIVER Issue
Peter Lewis
Dec 16, 2025
2
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24
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2K
Dec 23, 2025
Peter Lewis
P
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How to Decrease Memory Consumption using HugeImageView
xulihang
Dec 22, 2025
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13
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1K
Dec 23, 2025
xulihang
ABMaterial: java.nio.channels.ClosedChannelException - how to suppress
JackKirk
Jul 22, 2025
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17
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2K
Dec 23, 2025
JackKirk
Solution with assistance of MS Copilot??? ABMaterial: java.nio.channels.ClosedChannelException - how to suppress
JackKirk
Dec 21, 2025
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0
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557
Dec 21, 2025
JackKirk
[Web][SithasoDaisy5]
Sivasaravanan
Mar 19, 2025
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1K
Dec 18, 2025
Mashiane
How do I interface with various e-commerce sites?
amorosik
Dec 18, 2025
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438
Dec 18, 2025
DonManfred
D
InvocationTargetException error [not solved but problem went away]
Didier99
Dec 12, 2025
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5
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1K
Dec 17, 2025
Didier99
D
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Zoom Image with Mouse Cursor as the Center in ScrollPane
xulihang
Dec 15, 2025
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7
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Dec 17, 2025
xulihang
Setting IDE Font issue
mcqueccu
Dec 15, 2025
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705
Dec 16, 2025
mcqueccu
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About library routine ArchiverPlus (ProBundle)
johnerikson
Dec 16, 2025
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390
Dec 16, 2025
teddybear
A
TextField.Text vs String
a n g l o
Dec 15, 2025
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2
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625
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
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0
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351
Dec 15, 2025
JackKirk
D
CallSubDelayed causes exception for sub not found [problem fixed itself...]
Didier99
Dec 11, 2025
Answers
3
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824
Dec 12, 2025
Didier99
D
Encryption library missing?
TorontoJim
Dec 11, 2025
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2
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510
Dec 12, 2025
TorontoJim
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