[Python-Dev] Handling support for newer OS features at run time
shibturn at gmail.com
Wed Nov 28 00:14:00 CET 2012
On 27/11/2012 10:49pm, Trent Nelson wrote:
> Ideally, a Windows binary should make WSAPoll/select.poll()
> available if running on Vista or above, without impacting
> the ability to run on XP.
I assume you can do something like
int WSAAPI (*pWSAPoll)(WSAPOLLFD *, ULONG, INT);
HINSTANCE hWinsock2 = GetModuleHandle("WS2_32");
*(FARPROC *)&pWSAPoll = GetProcAddress(hWinsock2, "WSAPoll");
if (pWSAPoll == NULL)
to get a function pointer for WSAPoll on versions which support it.
Modules/_winapi.c does something similar to get CancelIoEx.
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