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Test Internet connection
Message
From
25/01/2011 08:07:05
 
 
General information
Forum:
Visual FoxPro
Category:
Windows API functions
Environment versions
Visual FoxPro:
VFP 8 SP1
Miscellaneous
Thread ID:
01497336
Message ID:
01497340
Views:
84
>Hi,
>
>Anyone know a *quick* way of checking for an Internet connection within a VFP app?
>
>I've been using the API InternetOpen() followed by InternetOpenUrl()
>If there is no problem then this is very fast.
>If a connection is disabled then InternetOpen() fails instantaneously (well almost)
>
>But if there are other problems (eg invalid gateway or router info) then InternetOpenUrl() can take a minute ot so to fail.
>For my purposes I'd be quite happy to give up if a valid connection wasn't obtained in, say, 5 seconds.
>
>I've tried InternetGetConnectedState() and InternetCheckConnection() but they may both result in a 'false positive'
>Any other suggestions (has to work for all OSs post Win95....)

Viv,

I haven't had any problems with this - so far
	local Flags
	store 0 to Flags
	
	return !empty(InternetGetConnectedState(@m.flags, 0)) ;
		and empty(bitand(m.Flags, INTERNET_CONNECTION_OFFLINE))
As to the time it takes - didn't you like slow (and erratic) ?
Gregory
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