Qt 4.0: Obsolete Members for QPixmapCache

|  | Home · All Classes · Main Classes · Grouped Classes · Modules · Functions |

# Obsolete Members for QPixmapCache

The following class members are obsolete. They are provided to keep old source code working. We strongly advise against using them in new code.

- QPixmapCache class reference

### Static Public Members

- QPixmap * find ( const QString & key ) `(obsolete)`

## Member Function Documentation

### QPixmap * QPixmapCache::find ( const QString & key ) `[static]`

This is an overloaded member function, provided for convenience. It behaves essentially like the above 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 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);