The following class members are obsolete. They are provided to keep old source code working. We strongly advise against using them in new code.
bool | find ( const QString & key, QPixmap & pixmap ) (obsolete) |
QPixmap * | find ( const QString & key ) (obsolete) |
Use bool find(const QString&, QPixmap*) instead.
This is an overloaded function.
Returns the pixmap associated with the key in the cache, or null if there is no such pixmap.
Warning: If valid, you should copy the pixmap immediately (this is fast). Subsequent insertions into the cache could cause the pointer to become invalid. For this reason, we recommend you use bool find(const QString&, QPixmap*) instead.
Example:
QPixmap* pp; QPixmap p; if ((pp=QPixmapCache::find("my_big_image", pm))) { p = *pp; } else { p.load("bigimage.png"); QPixmapCache::insert("my_big_image", new QPixmap(p)); } painter->drawPixmap(0, 0, p);
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