[EMAIL PROTECTED] schrieb: > (Is this the right place to ask ctypes questions? There's a mailing list > but the last post to it seems to have been in November 2006.)
You could use the ctypes-users mailing list: https://lists.sourceforge.net/lists/listinfo/ctypes-users It is also available via gmane. > Using ctypes I reference a structure which contains a pointer to an array of > another structure: > > class SYMBOL(Structure): > _fields_ = [("symbol", c_char_p), > ("num", c_int), > ("units", c_int), > ("baseprice", c_int), > ("active", c_int)] > SYMBOL_PTR = POINTER(SYMBOL) > > class TABLE(Structure): > _fields_ = [("map", SYMBOL_PTR), > ("nsymbols", c_uint), > ...] > > Effectively, TABLE.map is an array of TABLE.nsymbols SYMBOLS. How to I > reference elements in that array? In C I would just treat TABLE.map like an > array and index into it (for i=0; i< TABLE.nsymbols; i++) ...). This is > data returned from a C library, not something I'm building in Python to pass > into C. Assuming you got a pointer to TABLE from a function call like this: somefunction.restype = POINTER(TABLE) ptab = somefunction(...) then you should be able to use this code (C has the '*' operator to derefence pointers, Python does not so you have to use p[0] instead of *p): table = ptab[0] symp = table.map for i in range(table.nsymbols): sym = symp[0] print sym.symbol, sym.num, sym.units, sym.baseprice Thomas -- http://mail.python.org/mailman/listinfo/python-list
