All it'd take is a single drill hole and re-wiring the sensor, but it near the top of the window and no one's even gonna notice it's there. Like mneary said if you have eaves it's even more perfect you can recess it up, completely out of site.
Where C# is just different from C++. value types and reference types exist (struct is value-type, class is reference-type) value types live on the stack, reference types on the heap; references can point to null (must not be valid) code is packaged in assemblies in C#; no automatic conversion from int to bool in C#; main-function is called Main in C#
C++ is an evolution to C. Which was a system programming language. C++ Added many features to the language to make it object oriented. It became the mainstream programming language for that reason. Java is an evolution of C++, with different goals ( cross platform for instance ). It remove some of the features that make C++ so hard to learn. Simplify others and remove others.