Do we have no color and null value for QColor

[Qt Enthusiast]

In the following code, I want to send null for QColor

QColor myModel::getColorFromInstance(const QModelIndex& index ,myInst inst) const 
{
  GQColor *gcObj =  myColor::getInstance();
  if (gcObj) {
     return QColor(Qt::white);
   // I want to send null value from here to notify there is no color value . is it possibel 
  }
}

Edit: Please wrap code snippets with 3 backticks. -- @Wieland

[A Former User]

A QColor can be valid or invalid.

QColor myFunc() {
    return QColor(); // returns an invalid QColor
}