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[转]C#中调用Windows API时的数据类型对应关系
   
BOOL=System.Int32
BOOLEAN=System.Int32
BYTE=System.UInt16
CHAR=System.Int16
COLORREF=System.UInt32
DWORD=System.UInt32
DWORD32=System.UInt32
DWORD64=System.UInt64
FLOAT=System.Float
HACCEL=System.IntPtr
HANDLE=System.IntPtr
HBITMAP=System.IntPtr
HBRUSH=System.IntPtr
HCONV=System.IntPtr
HCONVLIST=System.IntPtr
HCURSOR=System.IntPtr
HDC=System.IntPtr
HDDEDATA=System.IntPtr
HDESK=System.IntPtr
HDROP=System.IntPtr
HDWP=System.IntPtr
HENHMETAFILE=System.IntPtr
HFILE=System.IntPtr
HFONT=System.IntPtr
HGDIOBJ=System.IntPtr
HGLOBAL=System.IntPtr
HHOOK=System.IntPtr
HICON=System.IntPtr
HIMAGELIST=System.IntPtr
HIMC=System.IntPtr
HINSTANCE=System.IntPtr
HKEY=System.IntPtr
HLOCAL=System.IntPtr
HMENU=System.IntPtr
HMETAFILE=System.IntPtr
HMODULE=System.IntPtr
HMONITOR=System.IntPtr
HPALETTE=System.IntPtr
HPEN=System.IntPtr
HRGN=System.IntPtr
HRSRC=System.IntPtr HSZ=System.IntPtr
HWINSTA=System.IntPtr
HWND=System.IntPtr
INT=System.Int32
INT32=System.Int32
INT64=System.Int64
LONG=System.Int32
LONG32=System.Int32
LONG64=System.Int64
LONGLONG=System.Int64
LPARAM=System.IntPtr
LPBOOL=System.Int16[]
LPBYTE=System.UInt16[]
LPCOLORREF=System.UInt32[]
LPCSTR=System.String
LPCTSTR=System.String
LPCVOID=System.UInt32
LPCWSTR=System.String
LPDWORD=System.UInt32[]
LPHANDLE=System.UInt32
LPINT=System.Int32[]
LPLONG=System.Int32[]
LPSTR=System.String
LPTSTR=System.String
LPVOID=System.UInt32
LPWORD=System.Int32[]
LPWSTR=System.String
LRESULT=System.IntPtr
PBOOL=System.Int16[]
PBOOLEAN=System.Int16[]
PBYTE=System.UInt16[]
PCHAR=System.Char[]
PCSTR=System.String
PCTSTR=System.String
PCWCH=System.UInt32
PCWSTR=System.UInt32
PDWORD=System.Int32[]
PFLOAT=System.Float[]
PHANDLE=System.UInt32
PHKEY=System.UInt32
PINT=System.Int32[] ID=System.UInt32
PLONG=System.Int32[]
PLUID=System.UInt32
PSHORT=System.Int16[]
PSTR=System.String
PTBYTE=System.Char[]
PTCHAR=System.Char[]
PTSTR=System.String
PUCHAR=System.Char[]
PUINT=System.UInt32[]
PULONG=System.UInt32[]
PUSHORT=System.UInt16[]
PVOID=System.UInt32
PWCHAR=System.Char[]
PWORD=System.Int16[]
PWSTR=System.String
REGSAM=System.UInt32
SC_HANDLE=System.IntPtr
SC_LOCK=System.IntPtr
SHORT=System.Int16
SIZE_T=System.UInt32
SSIZE_=System.UInt32
TBYTE=System.Char
TCHAR=System.Char
UCHAR=System.Byte
UINT=System.UInt32
UINT32=System.UInt32
UINT64=System.UInt64
ULONG=System.UInt32
ULONG32=System.UInt32
ULONG64=System.UInt64
ULONGLONG=System.UInt64
USHORT=System.UInt16
WORD=System.UInt16
WPARAM=System.IntPtr

<---------补充----------->

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 修饰。 
LPCWSTR                      Const wchar_t*    System.String 或 System.StringBuilder 用 Unicode 修饰。 
FLOAT                           Float                    System.Single 32 位 
DOUBLE                        Double                 System.Double 64 位