Hi Cheng, I think you are depending on update() to get the painting done. That may be optimized out. Or several paintEvents may be compressed into one if you have to force paint every 2seconds then call paint() directly in response to the timer.
Regards, Pritam ________________________________ From: [email protected] [[email protected]] on behalf of Arunprasad Rajkumar [[email protected]] Sent: Thursday, March 14, 2013 10:06 AM To: 程梁 Cc: Qt Interest Subject: Re: [Interest] QTimer pauses when window minimum >But when the window minimum QTimer stops and paintEvent() could not be called. Whether your window is in minimized state?. When window is in minimized state it is not visible in screen. Then why you need a paint? Basically most of the windowing system optimizes by not sending paintevent when window is in minimized state. On 14 March 2013 08:36, 程梁 <[email protected]<mailto:[email protected]>> wrote: Hi, there! In my application I need to update UI every 2s. I use QTimer to implement this feature. But when the window minimum QTimer stops and paintEvent() could not be called. How could I solve this problem? Or could you tell me something else to get this feature? Thank you! Cheng Liang Nanjing, China http://www.devbean.net _______________________________________________ Interest mailing list [email protected]<mailto:[email protected]> http://lists.qt-project.org/mailman/listinfo/interest -- Arunprasad Rajkumar http://in.linkedin.com/in/ararunprasad **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS*** _______________________________________________ Interest mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/interest
