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I would like to update my executable. To do this, I am first closing the executable's process (if open). Looking at my options, it looks like Process.CloseMainWindow is the recommended method.

How does the process decide what the main window is? I know how to set the application's main window, but I do not see an option to set the process' main window. The window I want to close is not the window opened on startup. It is also possible that the application will have multiple windows open. I haven't been able to find this information online.

I am using wpf if it is relevant.

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  • Have you seen this related post? Commented Apr 1, 2024 at 19:28
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    Every window has a handle number. The handle number are assigned numerically. So the Main Window is the child window of the process with the lowest handle number. Commented Apr 1, 2024 at 19:31
  • Thanks. I was concerned that it had something to do with Focus. I wanted to make sure that the window does not change based on what my users click on. Commented Apr 1, 2024 at 19:39
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