How to simulate Windows shutdown for debugging?

Question

I have an issue with my application when Windows shuts down - my app isn\'t exiting nicely, resulting in the End Task window being displayed. How can I use the debugger to s

Answer 1

SendMessage can be used to send window messages with any parameters to a window.

Very useful for debugging and testing.

1. Send the message WM_QUERYENDSESSION with LPARAM = ENDSESSION_CLOSEAPP. The application must return 1 (TRUE) to indicate it's prepared to shut down and restart.

2. Send the message WM_ENDSESSION with LPARAM = ENDSESSION_CLOSEAPP The application must shut down within the specified timeout period.