Trying to go from parent form to a child form...

Question

I have a quick question that I was wondering if someone can help with.

I am trying to write an application in Visual C++, I have some experience with C# in creating child forms, but I can't figure out to set it up in C++. 

I was wondering if anyone has any idea what I need to C# under lying program that would allow to click a button in which it would transfer control over to 2nd a Windows Forms.

Thank you in advance.

Abbott