c++到c#数据类型的转换
c++与c#的类型转换
2012-02-29 19:54 阅读(513)评论(0)
//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 ---- c#:StringBuilder
//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)]
//c++:char * ---- c#:string
//c++:char * ---- c#:StringBuilder
//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
