Never noticed such a behaviour, but I have no KVM ! What you tell make me thinking that the issue could arise from calling the message pump from your event handler. Don't do that.
-- [EMAIL PROTECTED] The author of the freeware multi-tier middleware MidWare The author of the freeware Internet Component Suite (ICS) http://www.overbyte.be ----- Original Message ----- From: "Markus Humm" <[EMAIL PROTECTED]> To: <twsocket@elists.org> Sent: Sunday, June 22, 2008 5:14 PM Subject: [twsocket] Windows and events > Hello, > > this one is slightly off topic but I like to know if ICS could be > affected by this phenomen as well (didn't yet find the time to test is): > > I'm doing serial communications and have a timeout mechanism via timer. > If the other device doesn't answer within the timer interval I send out > the same command again. This is also fully event driven (like ICS). > > Now I found out that sometimes I get two answers even if the device only > sends one. Further research showed me that there exist situations where > windows doesn't raise the data received event but the timeout timer > happens. Then I sent the same command again because I think (have to > think) that a real timeout occured and get shortly after when windows > does handle these data received events again two answers in the same > event: the original answer and the one to my timeout retry. > > One thing to force it happen is to switch betweeen 2 pcs via KVM switch > where a USB keyboard is plugged in. The USB enumeration of the keyboard > seems to disrupt/interrupt windows so it's not telling me that my > expected answer has arrived. > > Anyone noticed similar things yet? > > Greetings > > Markus > > -- > To unsubscribe or change your settings for TWSocket mailing list > please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket > Visit our website at http://www.overbyte.be -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
