in a 16 bit int and not in a 8 bit int as previously supposed, using a 0x1ff
mask. Upper 16 bits contains the ordinal number of the function. 
Allocation of the "recbuf" must be modified, to support larger data
(based on a patch by White Snake <whitesnake78@mail.com>).

Use them to remove the need for loading arrays in two different places.

Make them operate on a type, as opposed to a semantic name.

Assign fixed indices to declaration inputs.
Then use a common path to load the strided data.

This gives confirmation dialogs, recursive directory removal etc.

supplied data format.