Compatibility Members for QIcon

The following members of class QIconare part of the Qt compatibility layer. We advise against using them in new code.

Public Functions

int serialNumber() const

Member Function Documentation

int QIcon::serialNumber() const

Returns a number that identifies the contents of this QIcon object. Distinct QIcon objects can have the same serial number if they refer to the same contents (but they don't have to). Also, the serial number of a QIcon object may change during its lifetime.

Use cacheKey() instead.

A null icon always has a serial number of 0.

Serial numbers are mostly useful in conjunction with caching.

See also QPixmap::serialNumber().