Busy Cursor in window started by QProcess
-
Hi,
I'm wondering what could make the cursor of a widget busy for while, if it started using QProcess. For example, let's say that I have a showWidget.exe executable that shows a simple widget like this:#include <QApplication> #include <QtWidgets/QWidget> int main(int argc, char *argv[]) { QApplication a(argc, argv); QWidget w; w.show(); return a.exec(); }
And in an other process I do :
QProcess p; p.start(".../showWidget.exe"); p.waitForFinished(-1);
The shown widget gets a busy cursor for a while. That's it.
It's not a big issue, but I just want to know if that can be fixed, because if I use the CreateProcess and WaitForSingleObject, win apis, there's no busy cursor.
Thanks for your help. -
Hi,
What do you mean by "in another process" ?
-
Solved.
I didn't know about this. The first time I checked the docs about waitForFinished, it says :
"This function can operate without an event loop. It is useful when writing non-GUI applications and when performing I/O operations in a non-GUI thread."
And then I used to do like this :int main(int argc, char *argv[]) { QProcess p; p.start(".../showWidget.exe"); p.waitForFinished(-1); if(p.exitCode() != ...) //... return 0; }
Thank you very much @aha_1980.