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sunyata
Asked: 2021-01-05 08:54:10 +0800 CST

How do I open .qch files?

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I've installed the qt5-doc package but I'm not able to open the .qch files that I find in the /usr/share/qt5/doc/ directory.

Do you know how I can do this?

I've tried using qt5-assistant like this: assistant -collectionFile <help-file>.qhc but that didn't show anything.

qt

1 Answers

  1. To read pre-installed documentation you have to run Qt Assistant without arguments assistant and then select needed category from the Contents tab.

    To open custom *.qch file you have to:

    1. download it

      cd /tmp
wget https://master.dl.sourceforge.net/project/qwt/qwt/6.0.1/qwt-6.0.1.qch

    2. create new collection for it

      touch /tmp/my.qhc

    3. register file in the new collection

      assistant -collectionFile /tmp/my.qhc -register /tmp/qwt-6.0.1.qch;

    4. open Qt Assistant with new collection

      assistant -collectionFile /tmp/my.qhc

      and navigate to the newly created entry in Contents (Qwt User's Guide 6.0.1 in my case).

    Sources:

    1. https://wiki.qt.io/Qt_Creator_Documentation_Gallery
    2. https://doc.qt.io/archives/qt-4.8/assistant-custom-help-viewer.html
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