c#中的数据类型如何与API中的类型定义对应

Wtypes.h 中的非托管类型         非托管C 语言类型             托管类名                                                   说明
HANDLE                                    void*                    System.IntPtr                                             32 位
BYTE                                        unsigned char        System.Byte                                               8 位
SHORT                                      short                    System.Int16                                             16 位
WORD                                      unsigned short       System.UInt16                                          16 位
INT                                           int                        System.Int32                                             32 位
UINT                                         unsigned int          System.UInt32                                           32 位
LONG                                        long                     System.Int32                                             32 位
BOOL                                        long                     System.Int32                                             32 位
DWORD                                    unsigned long       System.UInt32                                           32 位
ULONG                                      unsigned long       System.UInt32                                           32 位
CHAR                                        char                     System.Char                                          用ANSI 修饰
LPSTR                                       char*                   System.String 或 System.StringBuilder     用ANSI 修饰
LPCSTR                                     Const char*          System.String 或 System.StringBuilder    用ANSI 修饰
LPWSTR                                    wchar_t*              System.String 或 System.StringBuilder    用Unicode 修
LPCWSTR                                  Const wchar_t*     System.String 或 System.StringBuilder    用Unicode 修
FLOAT                                       Float                    System.Single                                           32 位
DOUBLE                                    Double                 System.Double                                          64 位

 

 

 

C++                  输入输出               C#
==================================
char chr[255]       O             StringBuilder
KCA_DIR             I              int
LPCSTR               I              string
int                      I              int
LPSTR                 O             StringBuilder
int*                    O             out int
DWORD              I               int
DWORD*            O              out int
BOOL                 I               bool
Rc_DBMgr           I               IntPtr
long*                 O              out long

 

 

API与C#的数据类型对应关系表
API数据类型	类型描述	C#类型	API数据类型	类型描述	C#类型
WORD	16位无符号整数	ushort	CHAR	字符	char
LONG	32位无符号整数	int	DWORDLONG	64位长整数	long
DWORD	32位无符号整数	uint	HDC	设备描述表句柄	int
HANDLE	句柄,32位整数	int	HGDIOBJ	GDI对象句柄	int
UINT	32位无符号整数	uint	HINSTANCE	实例句柄	int
BOOL	32位布尔型整数	bool	HWM	窗口句柄	int
LPSTR	指向字符的32位指针	string	HPARAM	32位消息参数	int
LPCSTR	指向常字符的32位指针	String	LPARAM	32位消息参数	int
BYTE	字节	byte	WPARAM	32位消息参数	int