Windows Runtime base data types

This table lists the base data types that are supported by the Windows Runtime, and indicates the corresponding type in C#, Visual Basic, and C++.

Data type	JavaScript	C#	VB	C++
Boolean	Boolean	bool	Boolean	bool
Byte	Number	byte	Byte	unsigned char
Char	String	char	Char	unsigned char
Char16	String	char	Char	wchar_t
DateTime	Date	DateTimeOffset	DateTimeOffset	DateTime
Double	Number	double	Double	double
Guid	String	Guid	Guid	Guid
Int16	Number	short	Short	short
Int32	Number	int	Integer	int
Int64	Number	long	Long	__int64
Object	Object	object	Object	Object^
Point	Point	Point	Point	Point
Rect	Rect	Rect	Rect	Rect
Single	Number	float	Single	float
Size	Size	Size	Size	Size
String	String	string	String	String^
TimeSpan	Number	TimeSpan	TimeSpan	TimeSpan
UInt8	Number	byte	Byte	unsigned char
UInt16	Number	ushort	UShort	unsigned short
UInt32	Number	uint	UInteger	unsigned int
UInt64	Number	ulong	ULong	unsigned __int64
Uri	Uri	Uri	Uri	Uri^
Void	Undefined	void	Void	void

The following table indicates the .NET types that correspond to the Windows Runtime data types.

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