Hello everybody,
I want to access some functions from the gdk_pixbuf c-library to serialize and
deserialize a GdkPixdata struct, which
is stored in f-spot's database.
I tried to marshal the c-structs and c-function calls with ctypes, but my
application crashes with a segmentation fault signal
Any clue what's wrong?
from ctypes.util import find_library
from ctypes import *
class GdkPixdata(Structure):
_fields_ = [
("magic",c_uint),
("length",c_int),
("pixdata",c_uint ),
("rowstride", c_uint),
("width", c_uint),
("height", c_uint),
("pixel_data", POINTER(c_ubyte)),
]
class GError(Structure):
_fields_ = [
("domain", c_uint),
("code", c_int),
("message", c_char_p),
]
pixlib = CDLL(find_library('gdk_pixbuf-2.0'))
pixdata = GdkPixdata()
err = GError()
pixbuf
= pixlib.gdk_pixdata_deserialize(byref(pixdata), len(tag.icon),
tag.icon, POINTER(err)) #tag.icon contains the string from f-spot's db
Regards
Babi
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