CODEWITHSUNDEEP
qtqt5
Ravikumar Tulugu
Ravikumar Tulugu

Reputation: 1722

what is processEvents in a qt platform plugin supposed to do ?

I am writing a new platform plugin for qt, i am trying to understand what is the "processEvents" virtual method supposed to do ? my requirement is that i receive events on a file descriptor and am supposed to translate them to qt gui events and pass them over to the qt. pls advise.

Upvotes: 2

Views: 447

Answers (2)

Kuba hasn't forgotten Monica
Kuba hasn't forgotten Monica

Reputation: 98425

You can use a QSocketNotifier for this. Note that a QSocketNotifier takes a file handle only on Unix systems. On Windows, it takes a special winsock handle that is not a generalized HANDLE to an event object, neither is it a file handle. Don't worry about processEvents, it's not relevant to your problem.

Upvotes: 2

MrFox
MrFox

Reputation: 1254

From documentation http://qt-project.org/doc/qt-4.8/qcoreapplication.html#processEvents :

Processes all pending events for the calling thread according to the specified flags until there are no more events to process.

You can call this function occasionally when your program is busy performing a long operation (e.g. copying a file).

This is probably not what you are looking for. Based on the short description of your problem, it seems to me that you want Linux's poll(). http://linux.die.net/man/2/poll

Upvotes: 3

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