Przemyslaw Czerpak wrote:
I can do it in C, so I've wrote a EMPTYPTR() function with
hb_retptr( NULL );
but I'm asking about compiler based 0p0 (just like 0d0 or 0t0 for empty
date or timestamp) solution. Does such solution exist?
No. We can add literal pointer representation but I'd not li
On Wed, 05 Dec 2007, Mindaugas Kavaliauskas wrote:
> I can do it in C, so I've wrote a EMPTYPTR() function with
>hb_retptr( NULL );
> but I'm asking about compiler based 0p0 (just like 0d0 or 0t0 for empty
> date or timestamp) solution. Does such solution exist?
No. We can add literal pointer
Petr Chornyj wrote:
one more question. I'm changing Win32 API handlers and memory pointers
from numeric to pointer type. How can I assign empty pointer to variable?
HWND hwnd = (HWND) hb_parnl( 1 );
I was using this approach since 1998, and I'm moving to:
HWND hwnd = hb_parptr( 1 );
Chen Kedem wrote:
C level function: hb_retptr( NULL );
Well, this function return pointer to a null item, but it is
probably not empty (a new item is allocated every time).
So I leave it to someone which know something about this, to answer :)
Hi,
this function return "NULL .prg level poin
How can I assign empty pointer to variable?
C level function: hb_retptr( NULL );
Hi,
I can do it in C, so I've wrote a EMPTYPTR() function with
hb_retptr( NULL );
but I'm asking about compiler based 0p0 (just like 0d0 or 0t0 for empty
date or timestamp) solution. Does such solution exist
Mindaugas Kavaliauskas wrote:
>
> Hi,
>
> one more question. I'm changing Win32 API handlers and memory pointers
> from numeric to pointer type. How can I assign empty pointer to variable?
>
F.e. I'm use this code
LOCAL dc := _GetDC( hwnd)
If hb_IsPointer( dc )
..
dc := NIL
endif
I wrote:
> C level function: hb_retptr( NULL );
Well, this function return pointer to a null item, but it is
probably not empty (a new item is allocated every time).
So I leave it to someone which know something about this, to answer :)
Chen.
***
Mindaugas,
> How can I assign empty pointer to variable?
C level function: hb_retptr( NULL );
Don't know about PRG level, but since pointers are usually not created
on the PRG level it is reasonable.
Chen.
***
Hi,
one more question. I'm changing Win32 API handlers and memory pointers
from numeric to pointer type. How can I assign empty pointer to variable?
Best regards,
Mindaugas
___
Harbour mailing list
Harbour@harbour-project.org
http://lists.harbour-p
