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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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B4A - Android
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Android Questions
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Libraries developers questions
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Java Question
First mistake when recompiling an old project
Mar 2, 2026
Sergio Castellari
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M
Sign / verify the electronic certificate of a PDF
martha
Oct 5, 2021
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0
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916
Oct 5, 2021
martha
M
M
BCTextEngine tags in a database
mscientist33
Oct 5, 2021
Answers
1
Views
524
Oct 5, 2021
mscientist33
M
Solved
ScrollView2d disappeared (Solved)
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Sep 28, 2021
2
3
4
Answers
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A
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Oct 5, 2021
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1
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Oct 5, 2021
Arquero
A
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Simulate focus, enter, move to other view, by code.
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Oct 4, 2021
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7
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Oct 5, 2021
vecino
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More then 1 ManifestCode
Jmu5667
Oct 5, 2021
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2
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Oct 5, 2021
Jmu5667
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jRDC2 - B4J implementation
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Oct 4, 2021
Answers
14
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Oct 5, 2021
DonManfred
J
SimpleMediaManager - Get images from local storage
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Oct 4, 2021
Answers
7
Views
2K
Oct 5, 2021
John Naylor
J
How to run a B4A application with a single parameter?
T201016
Oct 3, 2021
Answers
11
Views
2K
Oct 5, 2021
T201016
Samsung with V11 killing my App
AHilberink
Sep 23, 2021
Answers
11
Views
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Oct 5, 2021
AHilberink
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EduardoElias
Oct 4, 2021
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1
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Erel
FirebaseMessaging service stop running - how to do for obtain an 'unbreakable service' ?
amorosik
Sep 29, 2021
2
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29
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4K
Oct 5, 2021
Erel
A
Which progress bar?
App Dude
Oct 4, 2021
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5
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2K
Oct 5, 2021
Erel
M
B4X Drawers
mscientist33
Oct 4, 2021
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1
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1K
Oct 5, 2021
Erel
M
B4XPages Drawer
mscientist33
Oct 4, 2021
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6
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3K
Oct 4, 2021
mscientist33
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Solved
GUI creation without using layout designer
Janusz Chmiel
Aug 23, 2021
2
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32
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8K
Oct 4, 2021
Janusz Chmiel
J
VB6 function to decrypt AES-text from b4a
Michael Müller Anywhere
Oct 3, 2021
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4
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5K
Oct 4, 2021
Michael Müller Anywhere
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XMPP Library Wrapper
lip
Oct 4, 2021
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0
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2K
Oct 4, 2021
lip
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M
SQL Update command
mscientist33
Oct 3, 2021
Answers
3
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2K
Oct 4, 2021
mscientist33
M
EscPOSPRinter and Android 1
Pedro Caldeira
Oct 4, 2021
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0
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2K
Oct 4, 2021
Pedro Caldeira
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