Query whether this volatile bitmap still has valid content.
As the video RAM allocated to this bitmap can be reclaimed at
any time, a return value of true here does not imply that the
next draw operation with this bitmap will succeed. Instead,
the exception VolatileContentDestroyed will be thrown then.
Query whether this volatile bitmap still has valid content.
As the video RAM allocated to this bitmap can be reclaimed at
any time, a return value of true here does not imply that the
next draw operation with this bitmap will succeed. Instead,
the exception VolatileContentDestroyed will be thrown then.