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M3setH3dCB
Attributes to '_object_' a callback having '_id_' as identifier.

I M3setH3dCB (
S3d _session_
H3d _object_
I _id_
fun [S3d H3d Arg3D] Arg3D _callback_
)
Parameters

_session_
3D Session
_object_
3D object to which a callback is to be attributed
_id_
Callback identifier
_callback_
Callback
Return value

0 if successful, otherwise nil
Remark

If a callback having this identifier already exists, it is replaced by the new one.
If a nil value is given as a parameter for the callback, then the latter is deleted.
See Also

M3getH3dCB and M3execH3dCB