Win32 Data Type Conversion Table

 

Windows Data Type	.NET Data Type
BOOL, BOOLEAN	Boolean or Int32
BSTR	String
BYTE	Byte
CHAR	Char
DOUBLE	Double
DWORD/LPDWORD	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

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