inhahe wrote:
> say i have this definition:
>
> 1 typedef struct SDL_Surface {
> 2 Uint32 flags; /* Read-only */
> 3 SDL_PixelFormat *format; /* Read-only */
> 4 int w, h; /* Read-only */
> 5 Uint16 pitch; /* Read-only */
> 6 void *pixels; /* Read-write */
> 7 SDL_Rect clip_rect; /* Read-only */
> 8 int refcount; /* Read-mostly */
> 9
> 10 /* This structure also contains private fields not shown here
> */
> 11 } SDL_Surface;
>
> notice two pointers, format and pixels.
> say format has this definition.
>
>
> 1 typedef struct {
> 2 SDL_Palette *palette;
> 3 Uint8 BitsPerPixel;
> 4 Uint8 BytesPerPixel;
> 5 Uint8 Rloss, Gloss, Bloss, Aloss;
> 6 Uint8 Rshift, Gshift, Bshift, Ashift;
> 7 Uint32 Rmask, Gmask, Bmask, Amask;
> 8 Uint32 colorkey;
> 9 Uint8 alpha;
> 10 } SDL_PixelFormat;
>
> so say i want to create a mock sdl handle and pass it to some library
> function that requires an sdl handle. (would it even work? would i
> need to use an SDL_SWSURFACE?)
>
> so i make the pixelformat data using struct.pack, and make the surface
> data using struct.pack, but how do i link the surface data to the
> pixelformat data? if i just use id() it'll give me the memory address
> of the "box" for the string and not the string data itself. thanks.
I think you are looking at the wrong module; you need ctypes, not struct.
http://docs.python.org/library/ctypes.html
Peter
--
http://mail.python.org/mailman/listinfo/python-list
