Ok that's 3 times no

You don't have to learn c before learning C++, it's recommended to learn the C subset (C stuff that's C++ is based on) though, learning C can actually slow you down in the learning process since C++ is a different way of writing programs (OOP).

And yes, learning C(++) is going to take a time... actually, the syntax is simple, so that's not going to take you a long time.. but knowing how to exploit every little thing of the language/compiler and the Standard Library is going to take a long time, and especially loads of experience.

By the way, VC++ is not a language, it's a developing enviroment (IDE + Compiler + linker etc.)

And if you need to learn C# is a whole other question... to learn C#, you need to learn the .NET framework...