Wt

If setValue called before setRange, WSpinBox is colored red with suitable (default) value

// is white (correct)
spin_box_ = new Wt::WSpinBox(this);
spin_box_->setRange(min, max);
spin_box_->setValue(default_value);

// is red (incorrect)
spin_box_ = new Wt::WSpinBox(this);
spin_box_->setValue(default_value);
spin_box_->setRange(min, max);