[ Version ( since = "3.0" ) ]
public void get_allocation (out int width, out int height)
Fetches the current allocation size for this.
If the context was not allocated in width or height, or if the context was recently reset with reset, the returned value will be -1.
| this | |
| width |
location to store the allocated width, or null |
| height |
location to store the allocated height, or null |