If you ever need to show an alert message to your user (the translucent dialog box that has a message and an OK button) you can add the following code to your App.cpp file and add this functionality yourself.
#ifdef __APPLE__
int AlertShow(char *title, char *message);
#else
#include "Windows.h"
int AlertShow(char *title, char *message)
{
MessageBox(NULL,message,title,MB_OK);
return(1);
}
#endif