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I have been running an application developed under Windows 7 in Delphi XE on Windows 7 machine for about 3 weeks non-stop, but it stopped working after that and popped up a message box with “Control doesn’t have parent window.” After that nothing seem to work right in the software, unless it is shutdown and restarted.
I have an idea of what that error means, but I am trying to figure out. Why?
Any hints or suggestions will be greatly appreciated. Thank you.
You should install a copy of MadExcept, JclExcept, or other exception handling library that supports displaying/logging the call stack when an uncaught exception is raised (if you cannt reproduce the exception while running inside the IDE debugger, that is). Then you can figure out what your app was trying to do at the time of the exception, and hopefully narrow it down to the spot in your code that is accessing the specific UI control that is missing its Parent window.