LineEdit how to add an onfocus function?
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Hello! I'm new in Qt and i want to add an onfocus function to LineEdit, i read an article about focusInEvent function and I've changed this function (1 and 2 pic). In Qt Creator i created a form (3) but i don't know how i can use my new class with focusInEvent function which inherits from QLineEdit .
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You have to promote your widget in the designer: http://doc.qt.io/qt-5/designer-using-custom-widgets.html
