When should i use QThread and QTimer

Can anyone please tell me,when shoud i use choose QTimer or QThread in my qt application with small example scenario.
Thankyou.

QThread: Rarely. Very little in the average application requires threads in Qt.
QTimer: Quite often. Useful for repeating tasks or delayed execution of single tasks.

The two are not related.

Thankyou
But in my application i have to read data from piece of hardware and plotting this into qwtplot widget,so if i choose QTimer for updating plot it is very slow compared to QThread.

Quote:

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Originally Posted by NathiyaAmose

Thankyou
But in my application i have to read data from piece of hardware and plotting this into qwtplot widget,so if i choose QTimer for updating plot it is very slow compared to QThread.

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It's not about choosing the right technique that matters, it is about proper usage of the one you choose.

Yes you are right.
Thankyou