C#与C++之间类型对应关系

//C++中的DLL函数原型为
//extern "C" __declspec(dllexport) bool 方法名一(const char* 变量名1, unsigned char* 变量名2)
//extern "C" __declspec(dllexport) bool 方法名二(const unsigned char* 变量名1, char* 变量名2)

  //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

//Struct需要在C#里重新定义一个Struct
//CallBack回调函数需要封装在一个委托里，delegate static extern int FunCallBack(string str);

  //unsigned char** ppImage替换成IntPtr ppImage
  //int& nWidth替换成ref int nWidth
  //int*, int&, 则都可用 ref int 对应
  //双针指类型参数，可以用 ref IntPtr
  //函数指针使用c++: typedef double (*fun_type1)(double); 对应 c#:public delegate double fun_type1(double);
  //char* 的操作c++: char*; 对应 c#:StringBuilder;
  //c#中使用指针:在需要使用指针的地方加 unsafe

//unsigned char对应public byte

posted @ 2017-03-13 18:05 Yanina2011 阅读(680) 评论(0) 编辑收藏举报

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C#与C++之间类型对应关系

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