Hello!
I am using ctypes on Windows to interface with a dll and it works fine
on Linux and windows 32-bit python. But, when using 64-bit python, we got
error "exception: access violation writing 0xFFFFFFFF99222A60".
Checking our server, it seems work without any problem. but the python
gives an error and stop the application.
-- c --
class myPythonAPI
{
public:
myPythonAPI();
int createService(const char* serviceName){ /* run our application*/};
}
extern "C" {
__declspec(dllexport) myPythonAPI* loadInstance(){ return new
myPythonAPI(); }
__declspec(dllexport) int createService(myPythonAPI* obj, const char*
serviceName) { eturn obj->createService(serviceName);
};
-- python --
from ctypes import *
lib = cdll.LoadLibrary('xxxxxxx.dll')
lib.createService.argtypes=[c_int,ctypes.c_char_p]
lib.createService.restype=ctypes.c_int
class myDriver(object):
def init(self):
self.obj = lib.loadInstance()
def create_services(self,servicename):
result=lib.createService(self.obj,servicename)
return result
driver=myDriver()
driver.create_services(b"myExample")
Thanks for the help
Jason
--
https://mail.python.org/mailman/listinfo/python-list
