Use managed C ++ to bond C # And C ++ code (2)

In the previous articleC #Pure calls in the codeC ++The basic process of the module. In this article, we will introduce how C ++ code calls C # code. I construct a simple and intuitive example: trigger the C # UI through the C ++ UI.

First, create a C # project Class Library project -- CSharpUI

Add a Form interface for the project and add a C # function -- InvokeUi) to construct and display the interface.

 
 

  
  
namespace CSharpUI  
  
  
{  
  
  
public class Program  
  
  
{  
  
  
public static void InvokeUi()  
  
  
{  
  
  
//class Form1-----C# UI  
  
  
Form1 fm = new Form1();  
  
  
fm.ShowDialog();  
  
  
}  
  
  
}  
  
  
}  
 
 

Create a managed dynamic link library Project-for detailed steps of MgdPro, refer to the previous article ).

In the MgdPro project, code is used to encapsulate the call to the above C # function, and the packaged class is exported from the DLL. The prerequisite is reference CSharpUI. dll.

 
 

  
  
//.h file  
  
  
#define DLLIMPEXP __declspec(dllexport)  
  
  
class DLLIMPEXP MgdClass  
  
  
{  
  
  
public:  
  
  
static void InvokeCsharpDlg();  
  
  
};  
  
  
 
  
  
//.cpp file  
  
  
using namespace CSharpUI;  
  
  
void MgdClass::InvokeCsharpDlg()  
  
  
{  
  
  
Program::InvokeUi();  
  
  
} 
 
 
 

Finally, create a Dialog Based C ++ project-PureC ++ Proexe project), and statically link MgdPro to the project. dll. call the code to trigger the C # interface in the trigger function of the Invoke button.

 
 

  
  
void CPureCProDlg::OnBnClickedButton1()  
  
  
{  
  
  
// TODO: Add your control notification handler code here  
  
  
//call managed c++ to invoke c# UI  
  
  
MgdClass::InvokeCsharpDlg();  
  
  
}  
 
 

The running interface is as follows:

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