Re: varptr to structs returns bad pointer value

[Brian G <brian@xxxxxxxxxxxxxxxx>]

No this does not pass the correct pointer, I am trying to pass a generic 
structure, I want to use pointers.
I am sorry but varptr(xxx)    should return a pointer to the actual 
memory containing the structure.
I don't want to create 10 or fifteen extern descriptions one for each 
type of structure that can be passed. Trying to create unique names and 
that seems silly.
The structures contains a key in the first field that identifies them to 
the interface.
Why is the varptr not returning the correct pointer?

My work around is to do the alloc and assign for now...... but it does 
not seem right.
On 2/27/25 14:44, Jussi Lahtinen wrote:
> And I think this should be:
> extern myFunction(data as myStruct) use "mylib"
>
>
> Jussi
>
> On Fri, Feb 28, 2025 at 12:27 AM Jussi Lahtinen 
> <jussi.lahtinen@xxxxxxxxx> wrote:
>         public sub doit2()
>            mydata = new myStruct
>            dataSet = varptr(myData)
>            myFunction(dataSet)  ' this fails invalid pointer provided
>         end sub
>
>
>     Try:
>
>         public sub doit2()
>            mydata = new myStruct
>            myFunction(mydata)
>         end sub
>
>
>
>     Jussi
--
~~~~ Brian

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