Usage:

#include <NsApp/MessageBox.h>

MessageBox::Show("Save changes to the modified file?", "Close", MessageBoxButton::YesNo,

[](MessageBoxResult result)

{

if (result == MessageBoxResult::Yes) { / save file / }

});

using NoesisApp;

MessageBox.Show("Save changes to the modified file?", "Close", MessageBoxButton.YesNo,

(result) =>

{

if (result == MessageBoxResult.Yes) { / save file / }

});