signals
pyQt v4 rowsMoved Signal
Im pretty new to Qt and have been trying to create a UI where the user will have rows of information and each row represents a stage in a pipeline. Iam trying to achieve that a user can drag and drop[详细]
2023-04-09 19:34 分类:问答Preventing Ctrl-C from closing program
This is an extension to a question I asked before. Override Ctrl-C I have this code that is handling the signal for ctrl-c, while this worked on one machine, I ran it on another and it now once again[详细]
2023-04-09 17:23 分类:问答SIGINT signal()/sigaction in C++
So here is my code: void sigHandle(int sig) { signal(SIGINT, sigHandle);//Is this line necessairy? cout<<"Signal: "<<sig<<endl;[详细]
2023-04-09 08:13 分类:问答SIGPIPE when echoing variable inside bash script
I have a cronjob running on a debian box. At certain points through the script, I set variables via HOSTNAME=$( hostname -s | tr A-Z a-z )[详细]
2023-04-09 05:18 分类:问答No child processes error ... again
I have a process running (call it main proc if you will) doing something. At some point it forks a process say proc1 that does something else. At some other point proc1 decides it needs a child proces[详细]
2023-04-09 04:03 分类:问答Python app crashes when emit signal from callback
I use my c++ library from python application with QT. It uses callback to communicate with UI. My library is \'ts\'. The problem is that my program crashes sometimes.[详细]
2023-04-08 18:22 分类:问答nanosleep() syscall waking up with bus error?
I\'m looking at a core dump from an embedded MIPS Linux app. GDB is reporting SIGBUS, and the thread handling the signal appears to be sat in a syscall for nanosleep - the higher level code basically[详细]
2023-04-08 16:52 分类:问答How can parents waits all child processes finish then exit when it receives SIGINT?
I\'m writing a multi process program in C. I hope parents process can wait all child processes finish then exit when[详细]
2023-04-08 01:57 分类:问答How to signal when AJAX completes
I have two ajax $.get() requests that I need to synchronize. Essentially var signal1 = false; var signal2 = false;[详细]
2023-04-07 12:12 分类:问答pyQt signals/slots with QtDesigner
I\'m trying to write a program that will interact with QGraphicsView.I want to gather mouse and keyboard events when the happen in the QGraphicsView. For example, if the user clicks on the QGraphicsVi[详细]
2023-04-07 02:14 分类:问答