Data Types of. NET and Win32 in InterOP

Win32 types	Specification	CLR type
Char, int8, sbyte, char (^)	8-bit signed integer	System. sbyte
Short, short int, int16, short	16-bit signed integer	System. int16
Int, long, long int, int32, long32, bool (^), int	32-bit signed integer	System. int32
_ Int64, int64, Longlong	64-bit signed integer	System. int64
Unsigned char, uint8, uchar (^), byte	8-bit unsigned integer	System. byte
Unsigned short, uint16, ushort, word, Atom, wchar (^), _ wchar_t	16-bit unsigned integer	System. uint16
Unsigned, unsigned int, uint32, ulong32, dword32, ulong, DWORD, uint	32-bit unsigned integer	System. uint32
Unsigned _ int64, uint64, dwordlong, ulonglong	64-bit unsigned integer	System. uint64
Float, float	Single-precision floating point	System. Single
Double, Long Double, double	Double-precision floating point	System. Double
(^) In Win32 this type is an integer with a specially assigned meaning; in contrast, the CLR provides a specific type specified to this meaning.

For handle, pvoid, or lpvoid types, use system. intptr. Compare null values. int32.zero is used.