小编l0r*_*3nu的帖子

为了获得一些学习经验,我试图在Cython中包含SDL(1.2.14)的一些部分,用于Python 3.2的扩展.

我有一个问题,弄清楚如何将C结构直接包装到Python中,能够直接访问其属性,如:

struct_name.attribute

例如,我想采用struct SDL_Surface:

typedef struct SDL_Rect {
    Uint32 flags
    SDL_PixelFormat * format
    int w, h
    Uint16 pitch
    void * pixels
    SDL_Rect clip_rect
    int refcount
} SDL_Rect;

并且能够在python中使用它:

import SDL
# initializing stuff

Screen = SDL.SetVideoMode( 320, 480, 32, SDL.DOUBLEBUF )

# accessing SDL_Surface.w and SDL_Surface.h
print( Screen.w, ' ', Screen.h )

目前,我已将SDL_SetVideoMode和SDL_Surface包装在一个名为SDL.pyx的文件中

cdef extern from 'SDL.h':
    # Other stuff

    struct SDL_Surface:
        unsigned long flags
        SDL_PixelFormat * format
        int w, h
        # like past declaration...

    SDL_Surface * SDL_SetVideoMode(int, …