Solved
How to verify unvisible window?
If Not Sys.Process("MTAUEVO").Window("TMessageForm", "Information", 1).VCLObject("Message").Exists Then
Log.Message("Information Message Not Appear")
Else
Log.Error("Information Message Appear")
End If
This Code Worked Fine with TestComplete11 and Windows7 os Now my Operating System Upgrade to Windows10 Pro and Testcomplete11 now got error message.
A closed window is different from "unvisible" (invisible).
Try using the Find method followed by Exists. If the windows can not be found, and empty stub is returned and Exists will be false.
