Fetches the current allocation size for context.
If the context was not allocated in width or height, or if the context was recently reset with CellArea.contextReset, the returned value will be -1.
location to store the allocated width, or NULL
location to store the allocated height, or NULL
3.0
Fetches the current allocation size for context.
If the context was not allocated in width or height, or if the context was recently reset with CellArea.contextReset, the returned value will be -1.