On Fri, 11 Dec 2009, [email protected] wrote:
Hi,
> ; TOFIX: CreateProcessW() second parameter has to be a read/write
> buffer. Przemek, do you have an idea how to solve that
> the cleanest way?
> (for now I kept a cast, assuming that a buffer is
> created by Harbour conversion API, but that's not
> something it guarantees in the future.)
As general solution I'll add:
HB_WCHAR * hb_wstrdup( const HB_WCHAR * );
and make hb_wstrlen() public.
But for more tuned usage I'll also add:
HB_WCHAR * hb_wstrUnShare( void ** hStr,
const HB_WCHAR * pStr, ULONG ulLen );
and:
char * hb_strUnShare( void ** hStr, const char * pStr, ULONG ulLen );
which can be used to convert (only if necessary) the buffer to writable
state so you can use it in WIN_RUNDETACHED() in this way:
ULONG ulLen;
LPCTSTR lpCommandRO = HB_PARSTR( 2, &hCommandLine, &ulLen );
LPTSTR lpCommand = HB_STRUNSHARE( &hCommandLine, lpCommandRO, ulLen );
It's the cleanest version but if you trust MS that in non unicode version
CreateProcessA() never change the buffer then you can make:
ULONG ulLen;
LPCTSTR lpCommandRO = HB_PARSTR( 2, &hCommandLine, &ulLen );
#if defined( UNICODE )
LPWSTR lpCommand = hb_wstrUnShare( &hCommandLine, lpCommandRO, ulLen );
#else
LPSTR lpCommand = ( LPSTR ) lpCommandRO;
#endif
best regards,
Przemek
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