FFI Win32 api calls with LPTSTR args?
Bert Freudenberg
bert at impara.de
Wed Jan 26 23:35:27 UTC 2005
Am 26.01.2005 um 22:29 schrieb Cees de Groot:
> On Tue, 25 Jan 2005 18:39:08 -0800, Ned Konz <ned at squeakland.org>
> wrote:
>
>> GetTempPathA(DWORD nBufferLength, LPCTSTR lpBuffer );
>>
> Which would mean
>
> apiGetTempPathBufferSize: aNumber inTo: aString
> <apicall: long 'GetTempPathA' (long char *) module: 'kernel32.dll'>
> ^self externalCallFailed
>
> Should be sort of ok, not?
Hmm, I'm not sure if you can use a String as buffer here - if I am not
mistaken you can only pass in ByteArrays and ExternalAddresses where a
pointer is required.
> I get the error message 'Only ExternalFunctions can be called' when I
> try this - does this means that my arguments are messed up or that
> this <apicall: > thingie is not correct?
Not sure about that ...
- Bert -
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