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that solved it! Thanks!

@monamour In the code you asked about there is no call to any strip() function, and the code simply does not access the characters read from the file, whether you remove anything from them or not. So your solution is interesting.

Can you explain more concretely what the problem is and what you have? Did you subclass QAbstractTableModel? Did you run your subclass through the model test? Did you subclass QSortFilterProxyModel? What specific problem are you facing?

@legitnameyo I think your program crashes because it initializes two pointers. Remove QPushButton * from your constructor. It should be: test.h private: QPushButton *btn; test.cpp Test::Test(QWidget *parent) : QMainWindow(parent), ui(new Ui::test) { ui->setupUi(this); btn = new QPushButton(this); } Also try to attach the debugger and run your program, it should detect the issue.

I've received an answer on Stack Overflow. It looks like in Qt 5.4 there was a change related with XCB handling that is not shown in the documentation: https://stackoverflow.com/questions/54553876/icon-option-doesnt-work-with-qapplication-in-qt-5-5 In the documentation it is stated, that f.e. user can use -geometry same as -qwindowgeometry but only -qwindowicon is visible in the documentation. http://doc.qt.io/qt-5/qguiapplication.html#QGuiApplication In code we can see, that -icon is also recognised on XCB platform: http://code.qt.io/cgit/qt/qtbase.git/tree/src/gui/kernel/qguiapplication.cpp?h=5.5#n1164

@rakm this is not possible with Qt API (and without modifiying Qt source code) and never will be I once implemented this, but only with an ugly hack by exposing the actual drop item out of QtGui dll and examine it's contents directly in the dropEvent() handler. Any way you may want to checkout this change though. It may be that it might be possible in the meantime.

Yes, and works perfectly

As @jsulm said: Why should an user want to edit the project file manually? And if an user would do this - what is the problem? At the end he/she can edit it in your app anyway I'm thinking of translation files (.ts) or GUI files (.ui) in Qt itself. They're just plain XML files, and I create/edit them with proper applications (Linguist and Designer respectively). BUT I can also edit them with my favorite text editor, why not? And if I mess them up, my favorite version control system (git, SVN, you name it) will come to the rescue to back them up to the point before the issue. It looks like you're doing a lot of work/effort for something that could be avoided...

@legitnameyo said in How to know which fonts work in QTextEdit?: Still a bit perplexed over why there's a difference between QFontDatabse and QFontComboBox QFontComboBox is a widget to select a font by user. QFontDatabse is not a widget but provides information about available fonts. It is a good design to separate logic/databases from GUI.

That's indeed what is done but there is a procedure to follow. Jira is the issues/features/tasks management part. Then you have Gerrit which is the review tool. You have here the introduction on how to do a submission. Everybody with an account can help review patches but you need the validation of approvers/maintainers to start the integration process. Approvers and maintainers do not necessarily work for the Qt Company.

Ok and for those who want to know how to include OpenSSL lib and headers to their projects add the following lines to your .pro file in your project LIBS += -LC:/OpenSSL-Win32/lib -lssleay32 INCLUDEPATH += C:/OpenSSL-Win32/include

@Vineela There is some information how to use it in your code: https://github.com/poulh/qjsontablemodel/blob/master/README.md

@Chris-Kawa It works, thanks.

@user4592357 strerror is not about exit code but errors occurring during run time of the application. There is no standard for exit codes. The only thing which is usually a valid assumption is: 0 means "everything fine". Everything != 0 signals an issue. But what exactly an exit code means is up to the application.

@Bharth http://doc.qt.io/qt-5/qlistwidget.html#selectedItems http://doc.qt.io/qt-5/qlist.html#append