【转帖】C#与C Windows API数据类型对应关系

转自:http://www.cnblogs.com/bobbychencj/archive/2011/09/21/2184101.html

                                                                API与C#的数据类型对应关系表

API数据类型

类型描述

C#类型

API数据类型

类型描述

C#类型

WORD

16位无符号整数

ushort

CHAR

字符

char

LONG

32位无符号整数

int

DWORDLONG

64位长整数

long

DWORD

32位无符号整数

uint

HDC

设备描述表句柄

int

HANDLE

句柄,32位整数

int

HGDIOBJ

GDI对象句柄

int

UINT

32位无符号整数

uint

HINSTANCE

实例句柄

int

BOOL

32位布尔型整数

bool

HWM

窗口句柄

int

LPSTR

指向字符的32位指针

string

HPARAM

32位消息参数

int

LPCSTR

指向常字符的32位指针

String

LPARAM

32位消息参数

int

BYTE

字节

byte

WPARAM

32位消息参数

int

C# 数据类型

简单类型

描 述

示 例

sbyte

8-bit 有符号整数

sbyte val = 12;

short

16-bit 有符号整数

short val = 12;

int

32-bit有符号整数

int val = 12;

long

64-bit有符号整数

long val1 = 12; long val2 = 34L;

byte

8-bit无符号整数

byte val1 = 12; byte val2 = 34U;

ushort

16-bit 无符号整数

ushort val1 = 12; ushort val2 = 34U;

uint

32-bit 无符号整数

uint val1 = 12; uint val2 = 34U;

ulong

64-bit 无符号整数

ulong val1 = 12; ulong val2 = 34U; ulong val3 = 56L; ulong val4 = 78UL;

float

32-bit单精度浮点数

float val = 1.23F;

double

64-bit双精度浮点数

double val1 = 1.23; double val2 = 4.56D;

booll

布尔类型

bool val1 = true; bool val2 = false;

char

字符类型 ，Unicode编码

char val = 'h';

decimal

28个有效数字的128-bit十进制类型

decimal val = 1.23M;

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[]
PLCID=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

附：举一个声明API的例子

[ DllImport( "Kernel32.dll" )]
public static extern System.UInt32 VirtualAllocEx(
System.IntPtr hProcess,
System.UInt32 lpAddress,
System.UInt32 dwSize,
System.UInt32 flAllocationType,
System.UInt32 flProtect
);