Client/Server Error: BadIDChoice

[wysota]

First, these are not compile errors - they are X server runtime warnings that come from incorrect manipulation of X server resources (like widgets).

The problems you experience are caused by the other part of the code even if they are revealed only when you use the code you posted. My very very long shot is that you try to manipulate widgets from within a worker thread, but without seeing the code, I can't say more.

BTW. Using fork() in Qt apps is not a very good idea - it's probably what causes you problems.

[3nc31]

First, Thanks for try to help me ....well, the rest of the code are 8 files (chat.h, chat.cpp, principal.h, principal.cpp, window.h, window.cpp, client.h, client.c) that is the reason for I doesn't post it!...Do I post it?? I think is too much for check!!

[wysota]

No, get rid of those fork() calls. Why do you want to start a separate process for each connection? And why don't you just use Qt networking capabilities instead of using the blocking low-level BSD socket interface? Currently you are doing everything wrong here