Hi Sean,
"swzoh" <[EMAIL PROTECTED]> wrote:
>> Are you passing POINTs in, or getting them out?
>
>I need to pass them in.
Okay, that's not handled yet.
>This is what actually confused me even if I was aware that there was
>no dll.set_array_element yet.
> What's not clear to me: the number and
> the role of the handle, aPoint here. Just single one is enough?
Yes, the service uses the struct handle to get the struct, works out
how much memory each requires, and reserves (and zeros) memory.
When I get back I'll work on dll.set_array_element. Seems that must
be the way to go. This OTOH:
aVertices = dll.create_array(5,"struct*",aPoint1, aPoint2, aPoint3,
aPoint4...)
is inherently limited cause sooner lor later someone's gonna want an
array with more than 22 elements.
Though I suppose I could make that an option.
Maybe need (or be useful to have) dll.set_struct_element too.
dll.set_array_element has somehow gota deal with pointers too. Hmm.
aPoint = dll.create_struct(.....)
; allocates memory for pointers, not the pointed-to-structs
aVertices = dll.create_array(5,"struct*",aPoint)
; service will have to be smart enough to notice that array is of
type struct*, and therefore
; just update pointer in array
dll.set_array_element(aVertices, 1, aPoint)
this will be tricky:
dwpArray = dll.create_array(5,"dword*")
dll.set_array_element(dwpArray, 1, 23)
Where does the pointed-to DWORD live? Now I gotta allocate memory for
that. OTOH does as array of pointers to scalars ever happen in any
api? I bet not, no advantage over simply passing a pointer to an
array of scalars.
Another possiblity:
aVec = vec.create(5)
aVec[0] = dll.create_struct(.....)
aVec[1] = dll.create_struct(.....)
aVec[2] = dll.create_struct(.....)
......
aVertices = dll.create_array(aVec,"struct*",aPoint)
Then array would be set from vector. I can figure out how big to make
the array from vec.length
You would then do
dll.refresh_array(aVertices)
after you called dll. I might be able to refresh vector automatically
the moment after a dll.call was made using the array, have to check
into that.
That interesting?
Offline from now for a week or so. Skiing. Yippee!
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