C#与C++之间类型的对应

最近在对接简单的硬件操作，通过C#调用的第三方封装的C++库，读取身份证，社保卡，特地查看了C#与C++之间类型的对应，查找了多篇文章，特意推荐如下文章

Windows Data Type	.NET Data Type
BOOL, BOOLEAN	Boolean or Int32
BSTR	String
BYTE	Byte
CHAR	Char
DOUBLE	Double
DWORD	Int32 or UInt32
FLOAT	Single
HANDLE (and all other handle types, such as HFONT and HMENU)	IntPtr, UintPtr or HandleRef
HRESULT	Int32 or UInt32
INT	Int32
LANGID	Int16 or UInt16
LCID	Int32 or UInt32
LONG	Int32
LPARAM	IntPtr, UintPtr or Object
LPCSTR	String
LPCTSTR	String
LPCWSTR	String
LPSTR	String or StringBuilder*
LPTSTR	String or StringBuilder
LPWSTR	String or StringBuilder
LPVOID	IntPtr, UintPtr or Object
LRESULT	IntPtr
SAFEARRAY	.NET array type
SHORT	Int16
TCHAR	Char
UCHAR	SByte
UINT	Int32 or UInt32
ULONG	Int32 or UInt32
VARIANT	Object
VARIANT_BOOL	Boolean
WCHAR	Char
WORD	Int16 or UInt16
WPARAM	IntPtr, UintPtr or Object

另： 在进行string转换时，需要加入前缀[MarshalAs(UnmanagedType.LPStr)]lpdword 对应于 ref int

C/C++	C#
HANDLE, LPDWORD, LPVOID, void*	IntPtr
LPCTSTR, LPCTSTR, LPSTR, char*, const char*, Wchar_t*, LPWSTR	String [in], StringBuilder [in, out]
DWORD, unsigned long, Ulong	UInt32, [MarshalAs(UnmanagedType.U4)]
bool	bool
LP<struct>	[In] ref <struct>
SIZE_T	uint
LPDWORD	out uint
LPTSTR	[Out] StringBuilder
PULARGE_INTEGER	out ulong
WORD	uInt16
Byte, unsigned char	byte
Short	Int16
Long, int	Int32
float	single
double	double
NULL pointer	IntPtr.Zero
Uint	Uint32

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