CODEWITHSUNDEEP
qtqt5
user8028736
user8028736

Reputation:

Passing Q_DECLARE_METATYPE as a pointer

This is my Container class.Which i declare in Q_DECLARE_METATYPE.

class Container
  {
    private:
    std::string stdstrContainerName;
    std::string stdstrPluginType;
    Geometry Geom;

  public:
    Container();
    Container(std::string, std::string,  const Geometry& geometry );
    Container(const  Container& obj);
 };

Q_DECLARE_METATYPE(Container)

This class is a the data member in TreeItem.Since this is heavy object so i want to pass it as a pointer rather than a value.

class TreeItem
 {

    Container* data();

  private:
      QList<TreeItem*> childItems;
      Container itemData;
      TreeItem* parentItem;
  };

 Container* TreeItem::data()
 {
     return &itemData;
 }

I get compiler error that Type is not registered, please use the Q_DECLARE_METATYPE macro to make it known to Qt's meta-object system

Upvotes: 1

Views: 1299

Answers (1)

user9088793
user9088793

Reputation:

If it is a pointer you want to pass around, you need to tell MOC about that:

Q_DECLARE_METATYPE(Container*)

Upvotes: 2

Related Questions