[Qt-interest] Treating User defined type as QVariant via void*

[Stephen Kelly]

Santhosh Y wrote:

>  
>  // Trying to insert Node* as UserType inside QVariant
>  QVariant v (QVariant::UserType, a);
>  
>  Node* k =NULL;
>  
>  //    bool status = qVariantCanConvert<Node*>(v);
>  
>  
>  if ( v.canConvert<Node*>() )
>  k = v.value<Node*>();
>  
>  
>  if (k != NULL) {
>  
>  std::cout << "Able to read back from void* to Node*\n";
>  }

after you do Q_DECLARE_METATYPE(NODE*) you want something like:

QVariant v = QVariant::fromValue(a);
Node* k =NULL;

k = v.value<Node*>();