Key Class
class QPixmapCache::KeyThe QPixmapCache::Key class can be used for efficient access to the QPixmapCache. More...
Public Functions
Detailed Description
Use QPixmapCache::insert() to receive an instance of Key generated by the pixmap cache. You can store the key in your own objects for a very efficient one-to-one object-to-pixmap mapping.
Member Function Documentation
Key::Key()
Constructs an empty Key object.
Key::~Key()
Destroys the key.
[since 5.7] bool Key::isValid() const
Returns true if there is a cached pixmap associated with this key. Otherwise, if pixmap was flushed, the key is no longer valid.
This function was introduced in Qt 5.7.