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Thread: Multitouch Zoom with QWTPLOT in Windows

  1. #1
    Join Date
    Jan 2012
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    Windows

    Exclamation Multitouch Zoom with QWTPLOT in Windows

    Hello everybody,

    I am quite new to QT.
    In order to learn it fast I decided to implement some functions based on QWT.

    I would like to make an oscilloscope with multi-touch zoom capability.

    I saw that the Zoomer could help, but for the moment I don't realy see how.

    Also I could not find the information if the Zoomer could treat multi-touch events.

    Thank you for the reply.

    Cristian

  2. #2
    Join Date
    Feb 2006
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    Default Re: Multitouch Zoom with QWTPLOT in Windows

    Quote Originally Posted by cristian.a View Post
    I would like to make an oscilloscope with multi-touch zoom capability.
    There is no special support for multi touch inputs implemented in Qwt - simply because I don't have any hardware supporting this.

    But an implementation shouldn't be hard - I would expect all, that needs to be done is to extend QwtPickerMachine/QwtEventPattern and QwtPicker::eventFilter() to recognize QTouchEvents.

    Whoever has such hardware: contributions are welcome.

    Uwe

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