I'm trying to compile a program (found here: http://sourceforge.net/projects/lisem/) by following the instructions said by the author. However, when compiling it in Qt Creator, it gives the error:
class QWidget has no member named setFrameStyle
for these lines of code in LisUIplot.cpp
47 HPlot = new QwtPlot(title, this);
48 layout_Plot->insertWidget(0, HPlot, 1);
49 HPlot->canvas()->setFrameStyle(QFrame::StyledPanel);
and
142 smallPlot = new QwtPlot(title, this);
143 smallPlot->setMinimumSize(300,300);
144 smallPlot->resize(500,500);
145 verticalLayout_6->insertWidget(0, smallPlot, 1);
146 smallPlot->canvas()->setFrameStyle(QFrame::StyledPanel);
I hope you can help me on this. Thank you!
BTW, I am using Qt 5.1.1 MinGW 32-bit and Qwt 6.1.0
This is quite expected since QWidget
has no such a member. That is a QFrame
member method.
void QFrame::setFrameStyle(int style)
Note, the canvas getter will return the following type, and not necessarily a QFrame
:
QWidget * QwtPlot::canvas();
const QWidget * QwtPlot::canvas() const;
It should be checked with dynamic/qobject_cast if the returned value is actually a QFrame
.
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