ctypes error on exit of win32 application

[Gabriel Genellina]

En Wed, 31 Jan 2007 19:04:13 -0300, Rubic <rubic88 at gmail.com> escribió:

> I'm attempting to use ctypes on a DLL with the following
> signature:
>
> __declspec(dllimport) void process_record(char *, char *);
>
> An example .cpp file has code like this:
>
>    int main(int argc, char **argv)
>    {
>       char record[100];
>       char code[6];
>         ...
>       process_record(code, record);
>
> When I invoke it under Python everything fine
> while the interpreter is running:
>
>    >>> from ctypes import *
>    >>> record = create_string_buffer("My Record")
>    >>> code = create_string_buffer('\000' * 6)
>    >>> cdll.grouper.process_recode(code, record)
>    >>> print code.value
>    '9999'
>
> But when the interpreter exits, either interactively
> or from a script, the following Program Error popup
> gets displayed:
>
>   "python.exe has generated errors and will be closed
>    by Windows.  You will need to restart the program."

Maybe process_record expects some minimum buffer size? The cpp example  
uses char record[100], but you are allocating only a few bytes with the  
string "My Record"

-- 
Gabriel Genellina