MartyConnelly
martyconnelly at shaw.ca
Fri Jun 20 14:11:56 CDT 2003
On WinXP Laptop connected via cable modem. I get true then if I unplug cable. I get false. Hope that helps. Jim DeMarco wrote: >Good points. > >Thanks, > >Jim DeMarco > > >-----Original Message----- >From: Jim Dettman [mailto:jimdettman at earthlink.net] >Sent: Friday, June 20, 2003 8:54 AM >To: accessd at databaseadvisors.com >Subject: RE: [AccessD] detect network > > >Jim, > > <<Thanks. The app is being distributed to a number of companies so I've >been looking for something generic that won't need any direction as to where >to look. I found a simple API this AM that I think does the trick:>> > > That being the case, then I'd go for something as simple as possible, like >trying the operation and trapping the error. When you start talking API, >then you need to worry about the OS, what is or is not installed, etc. Just >look at the comments on what you posted. Will it work with XP? > >Jim Dettman >President, >Online Computer Services of WNY, Inc. >(315) 699-3443 >jimdettman at earthlink.net > >-----Original Message----- >From: accessd-bounces at databaseadvisors.com >[mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Jim DeMarco >Sent: Friday, June 20, 2003 8:42 AM >To: accessd at databaseadvisors.com >Subject: RE: [AccessD] detect network > > >Thanks. The app is being distributed to a number of companies so I've been >looking for something generic that won't need any direction as to where to >look. I found a simple API this AM that I think does the trick: > >'Requires Windows 2000 >'(or Windows NT 4.0 with Internet Explorer 5 or later); >'Requires Windows 95 or later (with Internet Explorer 5 or later) > >'Parameter info >'· lpdwFlags >'Provides information on the type of network connection available when the >return value is TRUE. The flags can be: >'NETWORK_ALIVE_LAN >'The computer has one or more LAN cards that are active. >'NETWORK_ALIVE_WAN >'The computer has one or more active RAS connections. >'NETWORK_ALIVE_AOL >'This flag is only valid in Windows 95 and Windows 98. Indicates the >computer is connected to the America Online network. > >'Return Values >' >'TRUE >'The local system is connected to a network. >'FALSE >'Call GetLastError to determine the reason for no connectivity. > >Const NETWORK_ALIVE_AOL = &H4 >Const NETWORK_ALIVE_LAN = &H1 >Const NETWORK_ALIVE_WAN = &H2 > >Declare Function IsNetworkAlive Lib "SENSAPI.DLL" (ByRef lpdwFlags As Long) >As Long > >Public Function AmIConnected() As Boolean > 'KPD-Team 2001 > 'URL: http://www.allapi.net/ > 'E-Mail: KPDTeam at Allapi.net > Dim Ret As Long > Dim blnReturn As Boolean > blnReturn = IsNetworkAlive(Ret) <> 0 And Ret <> NETWORK_ALIVE_AOL 'we're >just interested in lan/wan > AmIConnected = blnReturn >End Function > >Thanks, > >Jim DeMarco >Director of Product Development >HealthSource/Hudson Health Plan > > >-----Original Message----- >From: Jim Dettman [mailto:jimdettman at earthlink.net] >Sent: Friday, June 20, 2003 8:13 AM >To: accessd at databaseadvisors.com >Subject: RE: [AccessD] detect network > > >Jim, > > Not sure if this will fit your needs or not, but how about issuing a shell >command with: > > Ping <address of server> >netchk.txt > > Then open and parse netchk.txt. You just need to look for the word >"reply". If found, you have a physical connection at least to the server. > ><<Or should we just try to hit the central DB at app start and trap the >error? I don't want to generate an error if I don't have to.>> > > That's what I would do. To many things can foul things up (ie. security) >beyond simply checking for a connection. Of course, I suppose it depends on >what you meant by "a connection". > > But in the end result, it's your app that needs to carry out whatever >operation. By the time you've done enough checking to verify that the app >will be able to perform whatever, you might as well have just tried it. > >Jim Dettman >President, >Online Computer Services of WNY, Inc. >(315) 699-3443 >jimdettman at earthlink.net > >-----Original Message----- >From: accessd-bounces at databaseadvisors.com >[mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Jim DeMarco >Sent: Thursday, June 19, 2003 8:33 AM >To: AccessD (E-mail) >Subject: [AccessD] detect network > > >We've got a data collection application that will be run on disconnected >laptops. At least once a week the laptop users will come in to the home >office to dump the data they've collected into our central SQL database. >Does anyone have any code that will detect that the laptop is connected to >our network so we can point their connection to the central DB (as opposed >to their local DB)? Or should we just try to hit the central DB at app >start and trap the error? I don't want to generate an error if I don't have >to. > >Thanks, > >Jim DeMarco >Director of Product Development >HealthSource/Hudson Health Plan > > >**************************************************************************** >******* >"This electronic message is intended to be for the use only of the named >recipient, and may contain information from Hudson Health Plan (HHP) that is >confidential or privileged. If you are not the intended recipient, you are >hereby notified that any disclosure, copying, distribution or use of the >contents of this message is strictly prohibited. If you have received this >message in error or are not the named recipient, please notify us >immediately, either by contacting the sender at the electronic mail address >noted above or calling HHP at (914) 631-1611. If you are not the intended >recipient, please do not forward this email to anyone, and delete and >destroy all copies of this message. Thank You". >**************************************************************************** >******* > >_______________________________________________ >AccessD mailing list >AccessD at databaseadvisors.com >http://databaseadvisors.com/mailman/listinfo/accessd >Website: http://www.databaseadvisors.com > > >_______________________________________________ >AccessD mailing list >AccessD at databaseadvisors.com >http://databaseadvisors.com/mailman/listinfo/accessd >Website: http://www.databaseadvisors.com > > >**************************************************************************** >******* >"This electronic message is intended to be for the use only of the named >recipient, and may contain information from Hudson Health Plan (HHP) that is >confidential or privileged. If you are not the intended recipient, you are >hereby notified that any disclosure, copying, distribution or use of the >contents of this message is strictly prohibited. If you have received this >message in error or are not the named recipient, please notify us >immediately, either by contacting the sender at the electronic mail address >noted above or calling HHP at (914) 631-1611. If you are not the intended >recipient, please do not forward this email to anyone, and delete and >destroy all copies of this message. Thank You". >**************************************************************************** >******* > >_______________________________________________ >AccessD mailing list >AccessD at databaseadvisors.com >http://databaseadvisors.com/mailman/listinfo/accessd >Website: http://www.databaseadvisors.com > > >_______________________________________________ >AccessD mailing list >AccessD at databaseadvisors.com >http://databaseadvisors.com/mailman/listinfo/accessd >Website: http://www.databaseadvisors.com > > >*********************************************************************************** >"This electronic message is intended to be for the use only of the named recipient, and may contain information from Hudson Health Plan (HHP) that is confidential or privileged. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or use of the contents of this message is strictly prohibited. If you have received this message in error or are not the named recipient, please notify us immediately, either by contacting the sender at the electronic mail address noted above or calling HHP at (914) 631-1611. If you are not the intended recipient, please do not forward this email to anyone, and delete and destroy all copies of this message. Thank You". >*********************************************************************************** > >_______________________________________________ >AccessD mailing list >AccessD at databaseadvisors.com >http://databaseadvisors.com/mailman/listinfo/accessd >Website: http://www.databaseadvisors.com > > >