Hi everyone.
Hope everything is going well.
I'm beginner.
I want to use QwtPlotCanvas to change some features of plot like background color and ... .
I tried to use QwtPlotCanvas as following:
Qt Code:
ui(new Ui::MainWindow) { ui->setupUi(this); setCentralWidget(BioPlot); canvas->setFocusPolicy( Qt::StrongFocus ); canvas->setPalette( Qt::black ); setCanvas( canvas ); ...To copy to clipboard, switch view to plain text mode
error: 'setCanvas' was not declared in this scope
setCanvas( canvas );
How can I resolve the error?
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