B4J Question View in other app

[Ilya G.]

Is it possible to get text in other app label?

 

[Erel]

There is a low level accessibility API in Windows. However it is not something that you can access with B4J without quite a lot of complex work.

 

[MarkusR]

article about interprocess communication
https://www.researchgate.net/public..._with_Java_in_a_Microsoft_Windows_Environment
https://en.wikipedia.org/wiki/Inter-process_communication

 

[MathiasM]

article about interprocess communication
https://www.researchgate.net/public..._with_Java_in_a_Microsoft_Windows_Environment
https://en.wikipedia.org/wiki/Inter-process_communication

That would only work if the other application actually implemented sharing the text, isn't it?

If you really want to scrape text of labels owned by other processes that you don't control (i.e, you didn't write) Than you have to do some WinApi stuff.
Start here: https://stackoverflow.com/questions/352236/reading-from-a-text-field-in-another-applications-window for the right WinAPI commands, mainly you have to find the Handle of the other window via FindWindow, then get the Handle of the label., then use SendMessage with command 'WM_GETTEXT' to retrieve the text.
Using WinAPI in Java should be easiest via JNA (https://github.com/java-native-access/jna), here is a tutorial: https://www.javaworld.com/article/2077828/open-source-java-projects-java-native-access.html

This is not by any means a beginners task.

If you control both applications, just use a socket.

 

[MarkusR]

That would only work if the other application actually implemented sharing the text, isn't it?

me thought we want share data between his apps.

in past it was possible to read text fields from other apps via win api, also password fields. but today i think its prevented my microsoft because misuse.