Calling a C# Library from Native C Using C /CLI and IJW
In mixed-language environments, developers often encounter the need to bridge the gap between managed C# and unmanaged C code. While PInvoke and COM objects offer solutions, C /CLI with IJW provides a cleaner and more seamless approach.
Advantages of Using C /CLI and IJW
-
Simpler Interfaces: C /CLR and IJW provide interfaces that are easier to understand and use compared to other methods.
-
Type Safety: C /CLR ensures type safety, preventing errors that can occur when crossing language boundaries.
-
Native Code Compilation: Unmanaged C code can interact with managed C# libraries through compiled wrappers, improving performance and code maintainability.
Creating a Wrapper Library with IJW
-
Create a C /CLR Library: Create a new library project targeting the .NET Framework. Set the language option to C /CLI.
-
Add IJW references: Add references to the Microsoft.VisualC.ManagedCrt.dll and System.ValueTuple.dll assemblies.
-
Define Native Interfaces: Create a header file (.h) that defines the native interfaces for interacting with the C# library.
-
Implement Wrappers: Write the code in the .cpp file, using IJW to call the C# functions from native C .
Sample Wrapper Code
// Native.h
void NativeWrapMethod();
// Native.cpp
#using <mscorlib.dll>
#using <MyNet.dll>
using namespace MyNetNameSpace;
void NativeWrapMethod()
{
MyNetNameSpace::MyManagedClass::Method(); // static method
}
Copy after login
Integrating Native Code
-
Include Header File: Include the Native.h file in the unmanaged C code where needed.
-
Call Native Function: Call the NativeWrapMethod() function from the unmanaged C code.
Conclusion
Using C /CLI with IJW provides a robust and efficient way to bridge the gap between unmanaged C and managed C# code. By creating a wrapper library, you can expose the C# library to unmanaged code with ease, simplifying interoperability and ensuring code safety.
The above is the detailed content of How Can C /CLI & IJW Seamlessly Connect Native C and Managed C# Libraries?. For more information, please follow other related articles on the PHP Chinese website!