Create a random number

See Random class:
http://msdn2.microsoft.com/en-US/library/system.random.aspx

what do you have to include to use the random class, because I cant use?

Random class belongs to System namespace, it can be used in any C++/CLI application without additional references.

using namespace System;
...

Random^ r = gcnew Random( 10);
...

This is how my code looks and it doesnt work. Any ideas?

#include <windows.h>
#include <cassert>
#include <cstdio>

int APIENTRY WinMain(
      HINSTANCE instance,
      HINSTANCE previousInstance,
      LPSTR commandLine,
      int commandShow)
{
      Random^ r = gcnew Random( 10);
}

Sorry, thought it was managed, well well.

Thank you!

VC++ 8.0 allows to create both managed and unmanaged applications. In Application Wizard, Project Type step, CLI item contains managed applications, all other items (MFC, Win32 ...) are unmanaged applications, like in old VC++ 6.0.