is there any Qt Painter/Drawing demo?

[opengpu2]

is there any Qt Painter/Drawing demo?
user can draw lines or other complicated shapes with specific line width.
thank you

[jsulm]

If I enter "Qt Painter Drawing demo" in Google I get http://doc.qt.io/qt-5/qtwidgets-painting-basicdrawing-example.html
Is that what you need?

[opengpu2]

@jsulm thank you very much

[opengpu2]

@jsulm what i want is draw anything while i press the mouseButton while mouseMove...

[jsulm]

Reimplement

QWidget::mouseMoveEvent(QMouseEvent *event)

http://doc.qt.io/qt-5.6/qmouseevent.html