C#中调用C/C++运行库

调用举例

C++函数原型举例：

//结构体
typedef struct tagCallRecord
{
    int type;
    int index;
    char number[20];
    char time[20];
    char callId[100];
} CALLRECORD;

//回调函数
typedef int (__stdcall *Pkaer_Box_CallBack)(int type, const char*lpMultiByteStr, const char *a4, int a5, int a6);
typedef int(__stdcall *Pkaer_EncryptMsg_CallBack)(/*[IN]*/const char* pszSrcMsg, /*[IN]*/const unsigned int uSrcLen, /*[IN-OUT]*/char* pszDstMsg, /*[IN-OUT]*/unsigned int* puDstLen);
typedef int(__stdcall *Pkaer_DecryptMsg_CallBack)(/*[IN]*/const char* pszSrcMsg, /*[IN]*/const unsigned int uSrcLen, /*[INT-OUT]*/char* pszDstMsg, /*[INT-OUT]*/unsigned int* puDstLen, /*[OUT]*/ unsigned int* puValidLen);

//函数
extern "C" __declspec(dllimport) int __stdcall kaer_Dial_Number(const char* number);
extern "C" __declspec(dllimport) int __stdcall kaer_Dial_callId(const char* number, int hidden, char * callId);
extern "C" __declspec(dllimport) int __stdcall kaer_Box_Open(Pkaer_Box_CallBack callBack);
extern "C" __declspec(dllimport) int __stdcall kaer_setEncryptCallback(Pkaer_EncryptMsg_CallBack pEncryptCallBack, Pkaer_DecryptMsg_CallBack pDecryptCallBack);
extern "C" __declspec(dllimport) int __stdcall kaer_readCallRecords(int type, int begIndex, int endIndex, CALLRECORD*pCallRecords, int *count);
extern "C" __declspec(dllimport) int __stdcall kaer_getIccid(char *iccid, char *localNumber, char *sim);

C#中对应导入函数

//结构体
[StructLayout(LayoutKind.Sequential)]
public struct CallRecord
{
    RecordType type;
    int index;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 20)]
    string number;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 20)]
    string time;
    [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 100)]
    string callId;
};

//回调函数使用委托
public delegate void Pkaer_Box_CallBack(ResultType type, string lpMultiByteStr, string a4, int a5, int a6);
        public delegate void Pkaer_EncryptMsg_CallBack(/*[IN]*/string pszSrcMsg, /*[IN]*/uint uSrcLen, /*[IN-OUT]*/string pszDstMsg, /*[IN-OUT]*/ref uint puDstLen);
        public delegate void Pkaer_DecryptMsg_CallBack(/*[IN]*/string pszSrcMsg, /*[IN]*/uint uSrcLen, /*[INT-OUT]*/string pszDstMsg, /*[INT-OUT]*/ref uint puDstLen, /*[OUT]*/out uint puValidLen);

//函数
[DllImport(LIBNAME, CallingConvention = CallingConvention.StdCall)]
public static extern RetCode kaer_Dial_Number(string number);

[DllImport(LIBNAME, CallingConvention = CallingConvention.StdCall)]
public static extern RetCode kaer_Dial_callId(string number, int hidden, StringBuilder callId);

[DllImport(LIBNAME, CallingConvention = CallingConvention.StdCall)]
public static extern RetCode kaer_Box_Open(Pkaer_Box_CallBack callBack);

[DllImport(LIBNAME, CallingConvention = CallingConvention.StdCall)]
public static extern RetCode kaer_setEncryptCallback(Pkaer_EncryptMsg_CallBack pEncryptCallBack, Pkaer_DecryptMsg_CallBack pDecryptCallBack);

[DllImport(LIBNAME, CallingConvention = CallingConvention.StdCall)]
public static extern RetCode kaer_readCallRecords(RecordType type, int begIndex, int endIndex, ref CallRecord pCallRecords, ref int count);

[DllImport(LIBNAME, CallingConvention = CallingConvention.StdCall)]
public static extern RetCode kaer_getIccid(StringBuilder iccid, StringBuilder localNumber, StringBuilder sim);

C# 调用 C++ dll库文件，函数参数类型对应表：

C#调用C++的DLL搜集整理的所有数据类型转换方式,可能会有重复或者多种方案,自己多测试
c++:HANDLE(void   *)          ----    c#:System.IntPtr 
c++:Byte(unsigned   char)     ----    c#:System.Byte 
c++:SHORT(short)              ----    c#:System.Int16 
c++:WORD(unsigned   short)    ----    c#:System.UInt16 
c++:INT(int)                  ----    c#:System.Int16
c++:INT(int)                  ----    c#:System.Int32 
c++:UINT(unsigned   int)      ----    c#:System.UInt16
c++:UINT(unsigned   int)      ----    c#:System.UInt32
c++:LONG(long)                ----    c#:System.Int32 
c++:ULONG(unsigned   long)    ----    c#:System.UInt32 
c++:DWORD(unsigned   long)    ----    c#:System.UInt32 
c++:DECIMAL                   ----    c#:System.Decimal 
c++:BOOL(long)                ----    c#:System.Boolean 
c++:CHAR(char)                ----    c#:System.Char 
c++:LPSTR(char   *)           ----    c#:System.String 
c++:LPWSTR(wchar_t   *)       ----    c#:System.String 
c++:LPCSTR(const   char   *)  ----    c#:System.String 
c++:LPCWSTR(const   wchar_t   *)      ----    c#:System.String 
c++:PCAHR(char   *)   ----    c#:System.String 
c++:BSTR              ----    c#:System.String 
c++:FLOAT(float)      ----    c#:System.Single 
c++:DOUBLE(double)    ----    c#:System.Double 
c++:VARIANT           ----    c#:System.Object 
c++:PBYTE(byte   *)   ----    c#:System.Byte[]

c++:BSTR      ----    c#:StringBuilder
c++:LPCTSTR   ----    c#:StringBuilder
c++:LPCTSTR   ----    c#:string
c++:LPTSTR    ----    c#:[MarshalAs(UnmanagedType.LPTStr)] string 
c++:LPTSTR 输出变量名    ----    c#:StringBuilder 输出变量名
c++:LPCWSTR   ----    c#:IntPtr
c++:BOOL      ----    c#:bool   
c++:HMODULE   ----    c#:IntPtr    
c++:HINSTANCE ----    c#:IntPtr 
c++:结构体    ----    c#:public struct 结构体{}; 
c++:结构体 **变量名   ----    c#:out 变量名   C#中提前申明一个结构体实例化后的变量名
c++:结构体 &变量名    ----    c#:ref 结构体 变量名


c++:WORD      ----    c#:ushort
c++:DWORD     ----    c#:uint
c++:DWORD     ----    c#:int

c++:UCHAR     ----    c#:int
c++:UCHAR     ----    c#:byte
c++:UCHAR*    ----    c#:string
c++:UCHAR*    ----    c#:IntPtr

c++:GUID      ----    c#:Guid
c++:Handle    ----    c#:IntPtr
c++:HWND      ----    c#:IntPtr
c++:DWORD     ----    c#:int
c++:COLORREF  ----    c#:uint


c++:unsigned char     ----    c#:byte
c++:unsigned char *   ----    c#:ref byte
c++:unsigned char *   ----    c#:[MarshalAs(UnmanagedType.LPArray)] byte[]
c++:unsigned char *   ----    c#:[MarshalAs(UnmanagedType.LPArray)] Intptr

c++:unsigned char &   ----    c#:ref byte
c++:unsigned char 变量名      ----    c#:byte 变量名
c++:unsigned short 变量名     ----    c#:ushort 变量名
c++:unsigned int 变量名       ----    c#:uint 变量名
c++:unsigned long 变量名      ----    c#:ulong 变量名

c++:char 变量名       ----    c#:byte 变量名   C++中一个字符用一个字节表示,C#中一个字符用两个字节表示
c++:char 数组名[数组大小]     ----    c#:MarshalAs(UnmanagedType.ByValTStr, SizeConst = 数组大小)]        public string 数组名; ushort

c++:char *            ----    c#:string       传入参数
c++:char *            ----    c#:StringBuilder传出参数
c++:char *变量名      ----    c#:ref string 变量名
c++:char *输入变量名  ----    c#:string 输入变量名
c++:char *输出变量名  ----    c#:[MarshalAs(UnmanagedType.LPStr)] StringBuilder 输出变量名

c++:char **           ----    c#:string
c++:char **变量名     ----    c#:ref string 变量名
c++:const char *      ----    c#:string
c++:char[]            ----    c#:string
c++:char 变量名[数组大小]     ----    c#:[MarshalAs(UnmanagedType.ByValTStr,SizeConst=数组大小)] public string 变量名;

c++:struct 结构体名 *变量名   ----    c#:ref 结构体名 变量名
c++:委托 变量名   ----    c#:委托 变量名

c++:int       ----    c#:int
c++:int       ----    c#:ref int
c++:int &     ----    c#:ref int
c++:int *     ----    c#:ref int      C#中调用前需定义int 变量名 = 0;

c++:*int      ----    c#:IntPtr
c++:int32 PIPTR *     ----    c#:int32[]
c++:float PIPTR *     ----    c#:float[]


c++:double** 数组名          ----    c#:ref double 数组名
c++:double*[] 数组名          ----    c#:ref double 数组名
c++:long          ----    c#:int
c++:ulong         ----    c#:int

c++:UINT8 *       ----    c#:ref byte       C#中调用前需定义byte 变量名 = new byte();       


c++:handle    ----    c#:IntPtr
c++:hwnd      ----    c#:IntPtr

c++:void *    ----    c#:IntPtr        
c++:void * user_obj_param    ----    c#:IntPtr user_obj_param
c++:void * 对象名称    ----    c#:([MarshalAs(UnmanagedType.AsAny)]Object 对象名称

c++:char, INT8, SBYTE, CHAR                               ----    c#:System.SByte  
c++:short, short int, INT16, SHORT                        ----    c#:System.Int16  
c++:int, long, long int, INT32, LONG32, BOOL , INT        ----    c#:System.Int32  
c++:__int64, INT64, LONGLONG                              ----    c#:System.Int64  
c++:unsigned char, UINT8, UCHAR , BYTE                    ----    c#:System.Byte  
c++:unsigned short, UINT16, USHORT, WORD, ATOM, WCHAR , __wchar_t             ----    c#:System.UInt16  
c++:unsigned, unsigned int, UINT32, ULONG32, DWORD32, ULONG, DWORD, UINT      ----    c#:System.UInt32  
c++:unsigned __int64, UINT64, DWORDLONG, ULONGLONG                            ----    c#:System.UInt64  
c++:float, FLOAT                                                              ----    c#:System.Single  
c++:double, long double, DOUBLE                                               ----    c#:System.Double 

Win32 Types        ----  CLR Type  

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• 分类： dotnet
• 标签： C# C++