On Nov 21, 2:28 am, 一首诗 <[EMAIL PROTECTED]> wrote:
> Hi all,
>
> Recently I asked a question on this group:
>
> >> What's your choice when handle complicated C structures.
snip
>
> typedef struct _Point
> {
> int x;
> int y;
>
> } Point;
>
> typedef struct _Shape
> {
> int z;
> Point ap[2];
>
> }Shape;
snip
> 2. BigEndianStructure can not be nested. So. If you need bid endian,
> you got bad luck.
A bug is filed about this.
I have this code working:
import ctypes as c
class Point( c.LittleEndianStructure ):
_fields_= [
( 'x', c.c_int ),
( 'y', c.c_int )
]
class Shape( c.LittleEndianStructure ):
_fields_= [
( 'z', c.c_int ),
( 'ap', Point* 2 )
]
lib= c.WinDLL( 'ng36ext.pyd' )
lib.make.argtypes= [ ]
lib.make.restype= Shape
shape= lib.make( )
print shape.z, shape.ap[0].x, shape.ap[0].y, shape.ap[1].x, shape.ap
[1].y
/Output:
10 20 30 40 50
20
10 20 30 40 50
/Definition for 'make':
Shape make( void ) {
Shape shape;
shape.z= 10;
shape.ap[ 0 ].x= 20;
shape.ap[ 0 ].y= 30;
shape.ap[ 1 ].x= 40;
shape.ap[ 1 ].y= 50;
printf( "%i %i %i %i %i\n", shape.z, shape.ap[0].x, shape.ap[0].y,
shape.ap[1].x, shape.ap[1].y );
printf( "%i\n", sizeof( shape ) );
return shape;
}
What is your next step?
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