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.
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.
