use setStyleSheet set qwidget background image

[mj_124949727@126.com]

hi, all

i use code set background - image , but nothing in screen

QString styleSheet("QWidget { background-image: url(:/pics/bg.jpg); } ");
QApplication a(argc, argv);
a.setStyleSheet(styleSheet);

what's wrong??

[gnuton]

I guess that setting is overridden from some other setting since it's too general. Have you tried to apply it directly to the widget?

[mj_124949727@126.com]

yes i try, apply it directly to the widget

QString styleSheet(" { background-image: url(:/pics/bg.jpg) } ");
setStyleSheet(styleSheet);

but is nothing.

[kamalakshan]

Have you checked the path and resource?

[mj_124949727@126.com]

i use code

QPalette palette;
QImage bg;
bg.load( ":/pics/bg.jpg" );
palette.setBrush(backgroundRole(), QBrush(bg));
setPalette(palette);

the backgroup is show ok, so i think the resource is right

but , I really did not know how to check

Use such like RFile::isExist function in Qt