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  1. Qt
  2. QTBUG-41426

QTouchEvent fail to work for wacom cintiq hd touch

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    • Icon: Bug Bug
    • Resolution: Cannot Reproduce
    • Icon: P2: Important P2: Important
    • None
    • 5.3.2
    • GUI: Basic Input System (keyboard, mouse, touch)

      I experienced mtdev and Linux Multi-touch (MT) Protocol B, and I found that qevdevtouch also open the device file descriptor, then processInputEvent for ABS_MT_xxx https://qt.gitorious.org/qt/qtbase/source/1fa3627423a73fe19333e2e016feb35cdf8cd1ea:src/platformsupport/input/evdevtouch/qevdevtouch.cpp#L228

      But QTouchEvent fail to work for wacom cintiq hd touch (the price is $2499!) product http://www.wacom.com/en/us/creative/cintiq-22-hd-touch

      It is strange that my testcase is able to work, for example sudo ./read_mtdev /dev/input/event16, when I use 2 fingers to pinch, it generated (XTestFakeKeyEvent) CTRL+/- to X11 Window https://github.com/openiSOFT/Kernel-Document-zh_CN/blob/master/input/touchpad_demo/read_mtdev.cpp

      But QTouchEvent is able to work for egalax projected touch screen http://www.eeti.com.tw/PCAP.html and ACER`s synaptics (touch pad)

      QDeviceDiscovery`s fault?

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            srutledg Shawn Rutledge
            lesliezhai Leslie Zhai
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              Created:
              Updated:
              Resolved:

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