qt - Borders and background of QWidget aren't set by stylesheet -


i've set stylesheet of qwidget change borders , background,

#gui {     border: 4px inset #515c84;     border-radius: 9px;     background-image: url(./back.png) }

its name gui neither border nor background shown.

override paintevent in qwidget subclass this:

void mywidget::paintevent(qpaintevent *e) {     qstyleoption opt;     opt.init(this);     qstylepainter p(this);     p.drawprimitive(qstyle::pe_widget, opt); }

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