【C#】[C++] C# 与 C++ 之间的类型转换

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//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

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