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/C++中的DLL函數(shù)原型為 //extern "C" __declspec(dllexport) bool 方法名一(const char* 變量名1, unsigned char* 變量名2) //extern "C" __declspec(dllexport) bool 方法名二(const unsigned char* 變量名1, char* 變量名2) //C#調(diào)用C++的DLL搜集整理的所有數(shù)據(jù)類型轉(zhuǎn)換方式,可能會有重復或者多種方案,自己多測試 //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 輸出變量名 ---- c#:StringBuilder 輸出變量名 //c++:LPCWSTR ---- c#:IntPtr //c++:BOOL ---- c#:bool //c++:HMODULE ---- c#:IntPtr //c++:HINSTANCE ---- c#:IntPtr //c++:結(jié)構(gòu)體 ---- c#:public struct 結(jié)構(gòu)體{}; //c++:結(jié)構(gòu)體 **變量名 ---- c#:out 變量名 //C#中提前申明一個結(jié)構(gòu)體實例化后的變量名 //c++:結(jié)構(gòu)體 &變量名 ---- c#:ref 結(jié)構(gòu)體 變量名 //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 變量名 ---- c#:byte 變量名 //c++:unsigned short 變量名 ---- c#:ushort 變量名 //c++:unsigned int 變量名 ---- c#:uint 變量名 //c++:unsigned long 變量名 ---- c#:ulong 變量名 //c++:char 變量名 ---- c#:byte 變量名 //C++中一個字符用一個字節(jié)表示,C#中一個字符用兩個字節(jié)表示 //c++:char 數(shù)組名[數(shù)組大小] ---- c#:MarshalAs(UnmanagedType.ByValTStr, SizeConst = 數(shù)組大小)] public string 數(shù)組名; ushort //c++:char * ---- c#:string //傳入?yún)?shù) //c++:char * ---- c#:StringBuilder//傳出參數(shù) //c++:char *變量名 ---- c#:ref string 變量名 //c++:char *輸入變量名 ---- c#:string 輸入變量名 //c++:char *輸出變量名 ---- c#:[MarshalAs(UnmanagedType.LPStr)] StringBuilder 輸出變量名 //c++:char ** ---- c#:string //c++:char **變量名 ---- c#:ref string 變量名 //c++:const char * ---- c#:string //c++:char[] ---- c#:string //c++:char 變量名[數(shù)組大小] ---- c#:[MarshalAs(UnmanagedType.ByValTStr,SizeConst=數(shù)組大小)] public string 變量名; //c++:struct 結(jié)構(gòu)體名 *變量名 ---- c#:ref 結(jié)構(gòu)體名 變量名 //c++:委托 變量名 ---- c#:委托 變量名 //c++:int ---- c#:int //c++:int ---- c#:ref int //c++:int & ---- c#:ref int //c++:int * ---- c#:ref int //C#中調(diào)用前需定義int 變量名 = 0; //c++:*int ---- c#:IntPtr //c++:int32 PIPTR * ---- c#:int32[] //c++:float PIPTR * ---- c#:float[] //c++:double** 數(shù)組名 ---- c#:ref double 數(shù)組名 //c++:double*[] 數(shù)組名 ---- c#:ref double 數(shù)組名 //c++:long ---- c#:int //c++:ulong ---- c#:int //c++:UINT8 * ---- c#:ref byte //C#中調(diào)用前需定義byte 變量名 = 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 * 對象名稱 ---- c#:([MarshalAs(UnmanagedType.AsAny)]Object 對象名稱 //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#里重新定義一個Struct //CallBack回調(diào)函數(shù)需要封裝在一個委托里，delegate static extern int FunCallBack(string str); //unsigned char** ppImage替換成IntPtr ppImage //int& nWidth替換成ref int nWidth //int*, int&, 則都可用 ref int 對應 //雙針指類型參數(shù)，可以用 ref IntPtr //函數(shù)指針使用c++: typedef double (*fun_type1)(double); 對應 c#:public delegate double fun_type1(double); //char* 的操作c++: char*; 對應 c#:StringBuilder; //c#中使用指針:在需要使用指針的地方 加 unsafe //unsigned char對應public byte /* * typedef void (*CALLBACKFUN1W)(wchar_t*, void* pArg); * typedef void (*CALLBACKFUN1A)(char*, void* pArg); * bool BIOPRINT_SENSOR_API dllFun1(CALLBACKFUN1 pCallbackFun1, void* pArg); * 調(diào)用方式為 * [UnmanagedFunctionPointer(CallingConvention.Cdecl)] * public delegate void CallbackFunc1([MarshalAs(UnmanagedType.LPWStr)] StringBuilder strName, IntPtr pArg); * * */ |
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