See this article on possibly handling these exceptions.ĭoes the sample code here work? You need to make sure the unmanaged code doesn't write past the end of the StringBuilder's buffer. An ultra fast cross-platform multiple screenshots module in pure python using ctypes.Python 3.5+ and PEP8 compliant, no dependency, thread-safe very basic, it will grab one screen shot by monitor or a screen shot of all monitors and save it to a PNG file. This is happening because you are calling an unmanaged method which is writing past the end of a buffer. from mss import mss The simplest use, save a screen shot of the 1st monitor with mss as sct: sct. The above message is from an AccessViolationException, which is a kind of corrupted state exception. Net 4, managed code does not handle these exceptions by default. These kinds of exceptions can be very bad because the CLR cannot be sure that its own internal state is consistent and are sometimes called corrupted state exceptions. CString str ::GetWindowText(mhWnd,(LPTSTR) (LPCTSTR)str,100) std::wstring wstr str is not going to work, because the CString is empty and in any case you should not cast the internal buffer to a LPTSTR, because using it will corrupt the CString. This mechanism is called structured exception handling. Another type is one delivered to the CLR via the windows OS. This window is part of the exe 'SearchUI.exe', the process is suspended and can't process messages. GetWindowText is trying to send a message, my guess is WMGETTEXT. GetWindowText is an extremely small and portable utility that allows you to read almost all the window text, from Edit, Static, Groupbox - Controls. One type is StackOverflow or OutOfMemory because there is literally no memory to allocate for the handler to run. When this code hits a window named '' with class 'URL Moniker Notification Window' it hangs on GetWindowText. There are some exceptions that cannot be caught.
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