Dear all,
Lets say for example I have a push button that, upon being clicked, clears five doubSpinBox’es.
I could manually do this as follows:
connect (ui->pushButton, SIGNAL (clicked()), ui->doubleSpinBox, SLOT(clear()));
connect (ui->pushButton, SIGNAL (clicked()), ui->doubleSpinBox_2, SLOT(clear()));
connect (ui->pushButton, SIGNAL (clicked()), ui->doubleSpinBox_3, SLOT(clear()));
connect (ui->pushButton, SIGNAL (clicked()), ui->doubleSpinBox_4, SLOT(clear()));
connect (ui->pushButton, SIGNAL (clicked()), ui->doubleSpinBox_5, SLOT(clear()));
Suffice it to say, it starts becoming untidy and cluttered repeating the same manual connect statements.
I want to therefore do something like this. I want to code one connect statement that refers to a custom slot called “clear_values” which in turn clears all the double spin boxes:
connect (ui->pushButton, SIGNAL (clicked()), this, SLOT(clear_values()));
void MainWindow::clear_values()
{
ui->doubleSpinBox->clear();
ui->doubleSpinBox_2->clear();
ui->doubleSpinBox_3->clear();
ui->doubleSpinBox_4->clear();
ui->doubleSpinBox_5->clear();
}
However the code above doesnt work, why not?
PS: I am NOT looking for Signal mapper. Signal mapper is even more tedious and only comes in handy when there are many signals to one or more slots.
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