By Nishant Sivakumar
C++ is the language of selection for hundreds of thousands of functions and hundreds of thousands of traces of code. With C++/CLI, builders can combine latest C++ code into the .NET platform with no rewriting their functions. This booklet explores the C++/CLI syntax, teaches how one can combine local C++ and controlled .NET code, and exhibits the way to combine C++ with home windows types, WPF (Avalon), and WCF (Indigo).
think taking a C++-based software you have been utilizing for a decade and giving it a snazzy new interface utilizing home windows Presentation beginning. How approximately making your previous company functions seek advice from your new ones utilizing home windows conversation beginning. C++/CLI makes this--and more--possible. C++/CLI in Action exhibits you the way to bridge the space among your latest C++ code and the .NET platform. C++/CLI in Action can help you if:
- You're hesitant emigrate to .NET since it capacity rewriting code in C# or VB.
- You have major C++ services that you really want to leverage within the .NET.
- You simply have to use items of the .NET framework, reminiscent of home windows types or internet services.
there isn't any fluff right here. Designed for readers who already be aware of C++, this ebook begins by way of educating the original points of the C++/CLI language. After a short journey in the course of the fundamentals, readers paintings via examples of integrating regular C++ into the .NET-based purposes and development courses that blend C++ and .NET code for optimum functionality and efficiency.
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Additional info for C++ CLI in Action (Manning)
3 Declaring CLR types In this section, we’ll look at the syntax for declaring CLI (or CLR) types, modifiers that can be applied to CLI types, and how CLI types implement inheritance. C++/CLI supports both native (unmanaged) and managed types and uses a consistent syntax for declaring various types. Native types are declared and used just as they are in standard C++. Declaring a CLI type is similar to declaring a native type, except that an adjective is prefixed to the class declaration that indicates the type being declared.
It lets you enable CLR support to native C++ projects including, but not limited to, projects that use MFC, ATL, WTL, STL, and Win32 API. This will be the most commonly-used compilation mode throughout this book. /clr:pure Creates an MSIL-only assembly with no native code (hence pure). You can have native (unmanaged) types in your code as long as they can be compiled into pure MSIL. C# developers can think of this as being equivalent to using the C# compiler in unsafe mode—the output is pure MSIL but not necessarily verifiable.
NET Framework libraries. NET libraries always expect a handle to an object (because C++ is the only language that supports a nonhandle reference type); so, if you have an object declared using stack semantics, you can apply the unary % operator on it to get a handle type that you can pass to the library function. Here’s some code showing how to use the unary % operator: Student^ s1 = gcnew Student(); Student% s2 = *s1; // Dereference s1 and assign // to the tracking reference s2 Student^ s3 = %s2; // Apply unary % on s2 to return a Student^ Be aware that the * punctuator is used to dereference both pointers and handles, although symmetrically thinking, a ^ punctuator should been used to dereference 28 CHAPTER 1 Introduction to C++/CLI a handle.
C++ CLI in Action (Manning) by Nishant Sivakumar