Hello,

While creating a programmatic language binding for IUP using the
Internal SDK, I ran into a case where some containers include a canvas
as part of the Iclass childcount. I was hoping to use childtype as a
way to determine whether the language binding should accept a single
child, list of children or some fixed number of children as argument
lists, but I'll be off-by-one in some cases where IUP provides a
canvas.

e.g. in C:

Ihandle* IupSbox(Ihandle* child);

i.e. 1 child

But childtype =  IUP_CHILDMANY+2; /* canvas+child */

i.e. 2 children

I can special-case these, but I was looking for a more robust way for
the programmatic language binding. Is there some other way to deduce
the maximum number of "user-provided" children? I had started looking
into Iclass's format field (used by LED, it seems)... Is that my best
bet?

Thanks,

Matt


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