QCalendarWidget does not propagate signals

StarEng

Hi all,

I am trying to work with QCalendarWidget, I need to know when somebody change date...
But it looks like that QCalendarWindget does not send signal.

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QGridLayout *mycalendarLayout = new QGridLayout();
QCalendarWidget *calendarWidgetfrom = new QCalendarWidget();
calendarWidgetfrom->setMinimumDate(QDate(2014,1,1));
calendarWidgetfrom->setMaximumDate(QDate(2028,1,1));

calendarWidgetfrom->setSelectionMode(QCalendarWidget::SelectionMode::SingleSelection);
mycalendarLayout->addWidget(calendarWidgetfrom,0,0,Qt::AlignCenter);

connect(calendarWidgetfrom, SIGNAL(selectionChanged()), this, SLOT(TestSignal()));

connect(calendarWidgetfrom,SIGNAL(clicked(QDate)),this, SLOT(DataFromChanged));

QWidget *myQWidget = new QWidget();
myQWidget->setLayout(mycalendarLayout);
m_toolbox->addItem(myQWidget, tr("Calendar"));
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Could you please anybody tell me, what I am doing wrong?

Thank you!

andreyc

Welcome to DevNet!

Are there any messages in a console when you start your app?

this one should complain about missing receiver or parentheses.
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connect(calendarWidgetfrom,SIGNAL(clicked(QDate)),this, SLOT(DataFromChanged));
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StarEng

YES, thank you.

Correct version:
@connect(calendarWidgetfrom,SIGNAL(clicked(QDate)),this, SLOT(DataFromChanged(const QDate&)));@

Thank you!

andreyc

I would suggest to use "new signal/slot syntax":http://qt-project.org/wiki/New_Signal_Slot_Syntax

It will help to avoid such errors.
For your example
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connect(calendarWidgetfrom, &QCalendarWidget::selectionChanged, this, &Widget::TestSignal);
connect(calendarWidgetfrom, &QCalendarWidget::clicked, this, &Widget::DataFromChanged);
@