On 14 March 2013 12:32, 程梁 <[email protected]> wrote: > Yeah, I mean when you clicked minimum button on right top of the window. > > I'm developing a monitor system with real time chart so the chart should > be updated no matter the window is visible or just in minimized state > Where it need to be updated ?. To disk or Network?
> . If most windowing system optimize this, I think I should draw the chart > in memory in order to update the whole chart when the window is visible. > This might be one of solutions. > You can use QPixmap; Get the QPainter from it & draw without worrying about paintEvent. > > > Cheng Liang > Nanjing, China > http://www.devbean.net > > ------------------------------ > Date: Thu, 14 Mar 2013 10:06:34 +0530 > > Subject: Re: [Interest] QTimer pauses when window minimum > From: [email protected] > To: [email protected] > CC: [email protected] > > > >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]> 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] > http://lists.qt-project.org/mailman/listinfo/interest > > > > > -- > *Arunprasad Rajkumar* > http://in.linkedin.com/in/ararunprasad > -- *Arunprasad Rajkumar* http://in.linkedin.com/in/ararunprasad
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