Marshall Cird in C＃

Question

私はこの構造体をC＃でマーシャリングしようとしていましたが、最後の2行に問題があります。

typedef struct _modenv_ 
{ 
    long lMajor;   /* major version of kernel */ 
    long lMinor;   /* minor version of kernel */ 
    long lRelease;  /* release version of kernel */ 

    long lResultSize; /* sResult buffer size */ 

    long (__stdcall *lPGSM_ExecuteKernel) (struct _modenv_ *PGEnv, char *sCommand, char *sResult, long lLength); 
    long (__stdcall *lPGSM_ExecuteCommand)(struct _modenv_ *PGEnv, char *sCommand, char *sResult, long lLength); 

} PGMODENV; 

そして、私が行っているすべてのはこれです：

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)] 
public struct PGMODENV 
{ 
    /* input data */ 
    public long lMajor;   /* major version of kernel */ 
    public long lMinor;   /* minor version of kernel */ 
    public long lRelease;  /* release version of kernel */ 

    /* updated data */ 
    public long lResultSize; /* sResult buffer size */ 

} 

どのように私はC＃でそれらを実装することができますか？

Answer 1

機能へのポインタなので、IntPtrを試してみてください。それは次のようになりますように：

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)] 
public struct PGMODENV 
{ 
    /* input data */ 
    public long lMajor;   /* major version of kernel */ 
    public long lMinor;   /* minor version of kernel */ 
    public long lRelease;  /* release version of kernel */ 

    /* updated data */ 
    public long lResultSize; /* sResult buffer size */ 

    public IntPtr lPGSM_ExecuteKernel; 
    public IntPtr lPGSM_ExecuteCommand; 
} 

Answer 2

public struct PGMODENV 
{ 
    public int lMajor; // major version of kernel 
    public int lMinor; // minor version of kernel 
    public int lRelease; // release version of kernel 

    public int lResultSize; // sResult buffer size 

    //The original C++ function pointer contained an unconverted modifier: 
    //ORIGINAL LINE: int(__stdcall *lPGSM_ExecuteKernel)(struct _modenv_ *PGEnv, sbyte *sCommand, sbyte *sResult, int lLength); 
    public delegate int lPGSM_ExecuteKernelDelegate(PGMODENV PGEnv, ref string sCommand, ref string sResult, int lLength); 
    public lPGSM_ExecuteKernelDelegate lPGSM_ExecuteKernel; 
    //The original C++ function pointer contained an unconverted modifier: 
    //ORIGINAL LINE: int(__stdcall *lPGSM_ExecuteCommand)(struct _modenv_ *PGEnv, sbyte *sCommand, sbyte *sResult, int lLength); 
    public delegate int lPGSM_ExecuteCommandDelegate(PGMODENV PGEnv, ref string sCommand, ref string sResult, int lLength); 
    public lPGSM_ExecuteCommandDelegate lPGSM_ExecuteCommand; 

}