[Gambas-user] Memory Stream Help

[Jussi Lahtinen]

I don't have any simple runnable example right now, so I hope this helps:

Dim pPointer As Pointer
Dim hStream As Stream
Dim iYourData As Integer
Dim ii As Integer
Dim iNumberOfDataPoints As Integer = x
Dim itmp As Integer

pPointer = Alloc(SizeOf(gb.Integer), iNumberOfDataPoints)

ExternalFunction(pPointer) ''Function takes pointer for output as parameter.

hStream = Memory pPolku For Read

For ii = 1 To iNumberOfDataPoints
itmp = Read #hStream As Integer
iYourData.Add(itmp)
Next

Close #hStream


Jussi



On Sun, Nov 20, 2011 at 06:42, Randall Morgan <rmorgan62 at ...626...> wrote:

> Hi All,
>
> Can someone give me a sample of using memory streams to read and write data
> to/from memory.
>
> I am needing to read data from a C structure allocated by the external
> library (tidy) with the pointer returned to Gambas.
>
> I read the page on external libraries many times before learning the Gambas
> 3 does not allow the use of READ on pointers any longer.
> This should be updated on the how to use external libraries page in the
> section "More on Pointers"
>
> Still, with the given documentation for Gambas3 I am unable to get my
> program to compile. So a sample of reading from memory using a pointer
> would be very helpful.
>
> Thanks!
>
> --
> If you ask me if it can be done. The answer is YES, it can always be done.
> The correct questions however are... What will it cost, and how long will
> it take?
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