Recreating a char array from a pointer

[buffinator]

Oh, nice
Im running 2.4 but im gonna download it and give it a try then

Thanks!

Thomas Heller wrote:
> buffinator schrieb:
>> I have an application that has to send a string as a pointer to memory, 
>> and then another one that has to retriece it and fetch the string. 
>> Converting the string to an array and sending the pointer was easy
>>
>> import array
>> a=array.array("c","mytextgoeshere")
>> my_pointer = a.buffer_info()[0]
>>
>>
>> But then I tried to get the data back... and I just can't find out how. 
>> I ended up writing a C module for this that works fine in linux, but 
>> this application is meant for windows and I just can't get C-modules to 
>> compiler there correctly since I suck at windows.
>>
>> The relevant code from the module is
>>
>> static PyObject *
>> pointrtostr_casttostr(PyObject *self, PyObject *args)
>> {
>>      char *mystr;
>>      long int p;
>>
>>      if (!PyArg_ParseTuple(args, "l", &p))
>>        return NULL;
>>
>>      mystr = (char*)p;
>>      return Py_BuildValue("s", mystr);
>> }
>>
>> My question is... can I do the above code in python without involving C 
>> since it is quite a big hassle to have to go through the module building 
>> in windows? :/
> 
> You can use the ctypes package for this.  It is in the standard library in Python 2.5,
> for older versions it is a separate download.
> 
> Thomas
>