[gdal-dev] GDAL/OGR C API, how should I be dealing with 'handles'

[jramm]

Many C API functions return a typedef which is referred to as a handle. E.g.

OGRFeatureHOGRLayerHOGRGeometryH
These seem to occur when the C++ api returns a pointer.I have 3 questions:
Why doesnt the C API return pointers? 
How should I pass these 'handles' around. Should I create pointers to them?
Do I need to free them?




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