Hi!

Does anybody know any way to display a messagebox showing a standard message with a "Don't show again this message" check box?

I know that standard MessageBox does not provide this feature and wouldn't like to create a standard form for that because I will have to reimplement many other features like icons, localized buttons etc.

Any ideas? I remember that such things could be done using win32 API back in vb6.

Usually people just create a new Form, that looks like a message box, with a check box control on it and use that instead of MessageBox.Show.

I'm not aware of a way to this even with win32 api. Theoretically you can add any control to any form but in this case the problem is that MessageBox are modal so the Show method won't return until a button is pressed. If a message box would be displayed using something like CreateMessageBox and thenShowMessageBox you could modify the form between those two calls but there's nothing like this in .NET or Win32.

Personally I did my own message boxes because it's not a big deal and I have more flexibility. Not to mention that the MessageBox.Show method has way too many parameters ... .

Usually people just create a new Form, that looks like a message box, with a check box control on it and use that instead of MessageBox.Show.

If we create a custom dialog, we won't have easy access to the system icons for error, exclamation, question, etc. How can I access those icons from a custom dialog?

Use the SystemIcons class, it has static fields for Error, Exclamation, Question, etc.

Just noticed this goodie: SHMessageBoxCheck functionthat you can Platform Invoke. From MSDN:

The DllImport declaration from PInvoke.net: