Change a value in Debugmode at rintime VS2010

I want to change a Value of an variable in debug mode at runtime. In C# I can change the value of every Int32 value.

Now I want to change a INTEGER*4 value at runtime in debug mode! At a breakepont the variable X has the value 5, now I change the value to 4, but after pressing enter, the value is against 5 but not 4.

Is there a Compiler adjustment to get this feature like in c#?

Greetings from germany