Hello Jereme, Thank you for your response and forwarding my email to other list. I checked the package in the official repository for ubuntu 14.04 but I could not find the package higher than 2.2. There is three packages where I have already installed (libxi-dev, libxi6, libx6-dbg) their version is 2:1.7.1.901-1ubuntu1. It is not higher than 2.2. Although I have those package are installed, result of the configure is still "mtdev no". By the way I could not run "make confclean" instead I did "make clean".
If you have an opportunity to take a look your laptop, please tell me the exact package name. Or if you have another suggestions please let me know. On Mon Feb 23 2015 at 6:18:59 PM Jereme Lamothe <jlamo...@docboxinc.com> wrote: > I went through this process as well. The Qt libraries that ship w/ the > SDK (at least as of 5.3) are built against XInput 2.0, which is too > early for multi-touch support. In order to support touch events, I > downloaded the xinput 2.2 libraries / headers from the ubuntu > repositories and compiled Qt from source. I'm away from my linux > laptop at the moment, so am unable to say the exact package name, but > they're present in the official repos as of at least Ubuntu 12.04. > > It sounds like you're doing the right thing, my only suggestions are > to double check that you have the dev headers for the xinput package, > and to run a `make confclean` before you run configure again. > > I found the easiest way to test if multitouch was enabled was to > compile the fingerpaint example, and set the following environment > variable before running. It would then print out device / lib info. > > QT_XCB_DEBUG_XINPUT_DEVICES=anything > > I reported this issue to Digia / Qt Company through commercial > support, and was told the SDK libs were built this way intentionally > to avoid compatibility issues, which is fair enough. Hopefully they > are able to build against newer versions of xinput in future releases. > > (I've cc'd the interest list rather than development, it's probably a > more appropriate place for this topic) > > On Mon, Feb 23, 2015 at 5:42 PM, Celal SAVUR <c.sa...@gmail.com> wrote: > > Hello Everybody, > > > > I am trying to use a multi-touch screen with my qt application. I have > > downloaded the qt 5.4 for Linux (Ubuntu 14.04). But unfortunately Gesture > > event does not deliver to the event function. > > > > My goal to catch swipe gesture then assign some task to do so. > > > > I tried to download Qt 5.4 source code then compile myself but anytime I > try > > to configure the source file the flag was "mtdev no". After my research, > I > > have discovered Qt required xinput 2.2 and higher but ubuntu 14.04 using > > 1.6xx. > > > > One interesting thing is that gesture (just touchbegin, touchpdate, > > touchend) is working with Qt 4.8 but not working Qt 5.4. I want to use > > Qgesture class but it does not work either 4.8 nor 5.4. > > > > I have spent too much time to fix this problem, but I could not. I need > > someone to help me to overcome this problem. > > > > Thank you in advance. > > > > celal > > > > _______________________________________________ > > Development mailing list > > developm...@qt-project.org > > http://lists.qt-project.org/mailman/listinfo/development > > >
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