Determine how the application closes

Question

I am trying to determine if my application is closed by clicking the “X” in the Windows form or by clicking on the “Exit” button that I have. Right now I am using StackTrace.GetFrame (someIndex) to determine how, but I am looking for a more definitive way, since it looks like these HR orders arent guaranteed. Is there a better way to make a difference? These are .NET 3.5 WinForm and Im written in C #.

Answer 1

Use another event to access your own Exit button. In your own Exit event handler, execute additional logic or set some state variable and then call the method of closing a regular application.

Send some examples of how your events are connected, and I will give a more specific example. In general, it would look something like this:

private void btnMyExit_Click(object sender, EventArgs e)
{
    // TODO: add any special logic you want to execute when they click your own "Exit" button
    doCustomExitWork();
}

public static void OnAppExit(object sender, EventArgs e)
{
    doCustomExitWork();
}

private void doCustomExitWork()
{
    // TODO: add any logic you want to always do when exiting the app, omit this whole method if you don't need it
}

Answer 2

Use the FormClosing event and query FormClosingEventArgs for the CloseReason value to enumerate.