感谢原作者:
'************************VB版本云效果***********************
'**作者： laviewpbt
'**QQ: 33184777
'**********************************************************
直接先上图:
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
移植难点总结如下:
原代码
'iRet = GetDIBits(hmemDC,xxx,m_Height,pOldPixel,BmpInfo,DIB_RGB_COLORS)
'iRet = GetDIBits(hmemDC,pPixel,DIB_RGB_COLORS)工作不正常. 找不到原因. 用如下代替:
myBitmap = New Bitmap(Me.Image.Image)
...
For i As Integer = 0 To m_Height - 1
For j As Integer = 0 To m_Width - 1
OldPixel(i * m_Width + j) = myBitmap.GetPixel(j,i).ToArgb And &HFFFFFFFF
dispPixel(i * m_Width + j) = myBitmap.GetPixel(j,i).ToArgb And &HFFFFFFFF
Next
Next
2,内存数据复制部分
原代码
CopyMemory(Pixel(0),OldPixel(0),m_Width * m_Height * 4)改为
pPixel = System.Runtime.InteropServices.Marshal.UnsafeAddrOfPinnedArrayElement(dispPixel,0)
...
Dim r As New Rectangle(0,m_Width,m_Height)
Dim bmpData As Drawing.Imaging.BitmapData
bmpData = myBitmap.LockBits(r,Drawing.Imaging.ImageLockMode.ReadOnly,Drawing.Imaging.PixelFormat.Format32bppArgb)
myBitmap.UnlockBits(bmpData)
CopyMemory(pPixel,bmpData.Scan0(),m_Width * m_Height * 4)
3,PictureBox绘图
原代码不工作.
<pre name="code" class="vb"> SetDIBitsToDevice(Me.hdc,DIB_RGB_COLORS)改为单像素填充
<pre name="code" class="vb"> pos = Y * m_Width + X<pre name="code" class="vb"> wR = (dispPixel(pos) And &HFF0000) >> 16wG = (dispPixel(pos) And &HFF00) >> 8
wB = dispPixel(pos) And &HFF
...
<pre name="code" class="vb"> myBitmap.SetPixel(X,Y,pixelColor)Me.Image.Image = myBitmap
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
代码:
'
' Form1.vb
'
' divilis # qq . com
'
Imports System.Math
Public Class Form1
Private hdc As Long
Private myOldBitmap As Bitmap
Private myBitmap As Bitmap
Private Sub Form1_Click(ByVal sender As Object,ByVal e As System.EventArgs) Handles Me.Click
If Timer1.Enabled Or Timer2.Enabled Then
Timer1.Enabled = False
Timer2.Enabled = False
Else
Timer1.Enabled = True
Timer2.Enabled = True
End If
End Sub
Private Sub Form_DblClick() Handles Me.DoubleClick
Me.Close()
End Sub
Private Sub Form_Load() Handles Me.Load
myBitmap = New Bitmap(Me.Image.Image)
m_Width = myBitmap.Width
m_Height = myBitmap.Height
DoubleHeight = m_Height * 2
With BmpInfo.bmiHeader
.biSize = Len(BmpInfo.bmiHeader)
.biWidth = m_Width
.biHeight = m_Height
.biPlanes = 1
.biBitCount = 32
.biCompression = BI_RGB
End With
ReDim OldPixel(3 * m_Width * m_Height - 1)
ReDim dispPixel(3 * m_Width * m_Height - 1)
ReDim WaveHeight(3 * m_Width * m_Height * 2 - 1)
myOldBitmap = myBitmap.Clone()
End Sub
Private Sub DropWater(ByVal X As Long,ByVal Y As Long,ByVal Radius As Long,ByVal Height As Long)
Dim Distance As Long
Dim XX As Long
Dim YY As Long
Dim I As Long
Dim J As Long
Dim Ratio As Double
Ratio = PI / Radius
For I = -Radius To Radius
For J = -Radius To Radius
XX = X + I
YY = Y + J
If XX >= 0 And XX < m_Width And YY >= 0 And YY < m_Height Then
Distance = Sqrt(I * I + J * J)
If Distance <= Radius Then
WaveHeight(XX * m_Height * 2 + YY * 2 + CurrentHeightBuffer) = Height * Cos(Distance * Ratio)
End If
End If
Next
Next
End Sub
Private Sub PaintWater()
Dim TimeUse As Long
Dim OffsetX As Long
Dim OffsetY As Long
Dim X As Long
Dim Y As Long
Dim Speed As Long
Dim Fast As Long
TimeUse = GetTickCount
NewHeightBuffer = (CurrentHeightBuffer + 1) Mod 2
Dim pPixel As System.IntPtr
Dim pOldPixel As System.IntPtr
Dim wB,wR,wG As Short
Dim pixelColor As Color
'Dim pixelColorInteger As Integer
Dim pos As Integer
pPixel = System.Runtime.InteropServices.Marshal.UnsafeAddrOfPinnedArrayElement(dispPixel,0)
pOldPixel = System.Runtime.InteropServices.Marshal.UnsafeAddrOfPinnedArrayElement(OldPixel,0)
myBitmap = myOldBitmap.Clone()
'For i As Integer = 0 To m_Height - 1
' For j As Integer = 0 To m_Width - 1
' OldPixel(i * m_Width + j) = myBitmap.GetPixel(j,i).ToArgb And &HFFFFFFFF
' dispPixel(i * m_Width + j) = myBitmap.GetPixel(j,i).ToArgb And &HFFFFFFFF
' Next
'Next
Dim r As New Rectangle(0,m_Width * m_Height * 4)
For X = 1 To m_Width - 2
For Y = 1 To m_Height - 2
Speed = X * DoubleHeight + Y * 2 + NewHeightBuffer
Fast = X * DoubleHeight + Y * 2 + CurrentHeightBuffer
WaveHeight(Speed) = _
(WaveHeight(Fast - DoubleHeight) + _
WaveHeight(Fast - DoubleHeight - 2) + _
WaveHeight(Fast - 2) + _
WaveHeight(Fast + DoubleHeight - 2) + _
WaveHeight(Fast + DoubleHeight) + _
WaveHeight(Fast + DoubleHeight + 2) + _
WaveHeight(Fast + 2) + _
WaveHeight(Fast - DoubleHeight + 2)) \ 4 - _
WaveHeight(Speed)
WaveHeight(Speed) = WaveHeight(Speed) - WaveHeight(Speed) \ 32
OffsetX = (WaveHeight(Speed - DoubleHeight) - WaveHeight(Speed + DoubleHeight)) \ 16
OffsetY = (WaveHeight(Speed - 2) - WaveHeight(Speed + 2)) \ 16
If OffsetX <> 0 And OffsetY <> 0 Then
If X + OffsetX <= 0 Then
OffsetX = -X
ElseIf X + OffsetX >= m_Width - 1 Then
OffsetX = m_Width - X - 1
End If
If Y + OffsetY <= 0 Then
OffsetY = -Y
ElseIf Y + OffsetY >= m_Height - 1 Then
OffsetY = m_Height - Y - 1
End If
dispPixel(X + Y * m_Width) = OldPixel(X + OffsetX + (Y + OffsetY) * m_Width)
pos = Y * m_Width + X
wR = (dispPixel(pos) And &HFF0000) >> 16
wG = (dispPixel(pos) And &HFF00) >> 8
wB = dispPixel(pos) And &HFF
'pixelColorInteger = dispPixel(Y * m_Width + X)
'pixelColor = Color.FromArgb(pixelColorInteger)
pixelColor = Color.FromArgb(wR,wG,wB)
myBitmap.SetPixel(X,pixelColor)
End If
Next
Next
CurrentHeightBuffer = NewHeightBuffer
'For i As Integer = 0 To m_Height - 1
' For j As Integer = 0 To m_Width - 1
' Next
'Next
'SetDIBitsToDevice(Me.hdc,DIB_RGB_COLORS)
Me.Image.Image = myBitmap
Me.Text = "water drop,frame delay: " + CStr((GetTickCount - TimeUse))
End Sub
Private Sub CreateWaterDrops()
Dim I As Long
Dim DropX As Long
Dim DropY As Long
Dim DropRadius As Long
Dim Height As Long
Dim Percent As Long
Percent = 0.0015 * (m_Width + m_Height)
For I = 0 To 99
DropX = Rnd() * m_Width
DropY = Rnd() * m_Height
Height = Rnd() * 400
DropRadius = Rnd() * 4 * Percent
If DropRadius < 4 Then DropRadius = 4
Drops(I).X = DropX
Drops(I).Y = DropY
Drops(I).Height = Height
Drops(I).Radius = DropRadius
Next
End Sub
Private Sub Timer1_Timer() Handles Timer1.Tick
Dim I As Long
Dim Percent As Long
Dim DropsNumber As Long
Dim Index As Long
Percent = 0.005 * (m_Width + m_Height)
DropsNumber = Rnd() * Percent
For I = 0 To DropsNumber - 1
Index = Rnd() * 99
DropWater(Drops(Index).X,Drops(Index).Y,Drops(Index).Radius,Drops(Index).Height)
Next
End Sub
Private Sub Timer2_Timer() Handles Timer2.Tick
PaintWater()
End Sub
Private Sub Form1_Shown(ByVal sender As Object,ByVal e As System.EventArgs) Handles Me.Shown
'Me.Text = "water drop:"
'hdc = GetDC(FindWindow(Nothing,"water drop"))
hdc = Me.Image.CreateGraphics().GetHdc()
Dim pHbitmap As Long
Dim pOldHbitmap As Long
Dim pOldPixel As Long
Dim pPixel As Long
Dim hmemDC As Long
Dim iRet As Long = -1
pOldPixel = System.Runtime.InteropServices.Marshal.UnsafeAddrOfPinnedArrayElement(OldPixel,0)
pPixel = System.Runtime.InteropServices.Marshal.UnsafeAddrOfPinnedArrayElement(dispPixel,0)
hmemDC = CreateCompatibleDC(hdc)
pHbitmap = CreateCompatibleBitmap(hdc,m_Height)
pOldHbitmap = SelectObject(hmemDC,pHbitmap)
pHbitmap = SelectObject(hdc,pOldHbitmap)
BitBlt(hmemDC,hdc,&HCC0020)
For i As Integer = 0 To m_Height - 1
For j As Integer = 0 To m_Width - 1
OldPixel(i * m_Width + j) = myBitmap.GetPixel(j,i).ToArgb And &HFFFFFFFF
Next
Next
'Dim xxx As Long
'xxx = myBitmap.GetHbitmap
'iRet = GetDIBits(hmemDC,DIB_RGB_COLORS)
Randomize()
CreateWaterDrops()
End Sub
End Class
'
' Module1.vb
'
' divilis # qq . com
'
Module Module1
Structure POINTAPI
Public X As Long
Public Y As Long
End Structure
Public Declare Function GetTickCount Lib "kernel32" () As Long
Structure RGBQUAD '只有bibitcount为1，2，4时才有调色板
Public Blue As Byte '蓝色分量
Public Green As Byte '绿色分量
Public Red As Byte '红色分量
Public Reserved As Byte '保留值
End Structure
Structure BITMAPINFOHEADER '40 bytes
Public biSize As Long 'BITMAPINFOHEADER结构的大小
Public biWidth As Long
Public biHeight As Long
Public biPlanes As Integer '设备的为平面数，现在都是1
Public biBitCount As Integer '图像的颜色位图
Public biCompression As Long '压缩方式
Public biSizeImage As Long '实际的位图数据所占字节
Public biXPelsPerMeter As Long '目标设备的水平分辨率
Public biYPelsPerMeter As Long '目标设备的垂直分辨率
Public biClrUsed As Long '使用的颜色数
Public biClrImportant As Long '重要的颜色数。如果该项为0，表示所有颜色都是重要的
End Structure
Structure BITMAPINFO
Public bmiHeader As BITMAPINFOHEADER
Public bmiColors As RGBQUAD
End Structure
Structure RECT
Public Left As Long
Public Top As Long
Public Right As Long
Public Bottom As Long
End Structure
'
Structure DropData
Public X As Long
Public Y As Long
Public Radius As Long
Public Height As Long
End Structure
Public Declare Function GetDIBits Lib "gdi32" (ByVal aHDC As Long,ByVal hBitmap As Long,ByVal nStartScan As Long,ByVal nNumScans As Long,ByVal lpBits As Long,ByVal lpBI As BITMAPINFO,ByVal wUsage As Long) As Long
Public Declare Function SetDIBitsToDevice Lib "gdi32" (ByVal hdc As Long,ByVal X As Long,ByVal dx As Long,ByVal dy As Long,ByVal SrcX As Long,ByVal SrcY As Long,ByVal Scan As Long,ByVal NumScans As Long,ByVal Bits As Long,ByVal BitsInfo As BITMAPINFO,ByVal wUsage As Long) As Long
Public Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Public Declare Function SetDIBits Lib "gdi32" (ByVal hdc As Long,ByVal wUsage As Long) As Long
Public Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (ByVal Destination As System.IntPtr,ByVal Source As System.IntPtr,ByVal Length As Long)
Declare Function GetLastError Lib "kernel32" Alias "GetLastError" () As Long
Public Const DIB_RGB_COLORS = 0&
Public Const BI_RGB = 0&
Public Const PI As Double = 3.1415926
Public m_Width As Long
Public m_Height As Long
Public OldPixel() As Long
Public dispPixel() As Long
Public WaveHeight() As Long
Public CurrentHeightBuffer As Long
Public NewHeightBuffer As Long
Public Drops(99) As DropData
Public DoubleHeight As Long
Public BmpInfo As BITMAPINFO
Declare Function GetDC Lib "user32" Alias "GetDC" (ByVal hwnd As Long) As Long
Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String,ByVal lpWindowName As String) As Long
Declare Function MoveToEx Lib "gdi32" Alias "MoveToEx" (ByVal hdc As Long,ByVal x As Long,ByVal y As Long,ByVal lpPoint As POINTAPI) As Long
Declare Function LineTo Lib "gdi32" Alias "LineTo" (ByVal hdc As Long,ByVal y As Long) As Long
Declare Function SelectObject Lib "gdi32" Alias "SelectObject" (ByVal hdc As Long,ByVal hObject As Long) As Long
Declare Function CreateCompatibleBitmap Lib "gdi32" Alias "CreateCompatibleBitmap" (ByVal hdc As Long,ByVal nWidth As Long,ByVal nHeight As Long) As Long
Declare Function CreateCompatibleDC Lib "gdi32" Alias "CreateCompatibleDC" (ByVal hdc As Long) As Long
Declare Function BitBlt Lib "gdi32" Alias "BitBlt" (ByVal hDestDC As Long,ByVal nHeight As Long,ByVal hSrcDC As Long,ByVal xSrc As Long,ByVal ySrc As Long,ByVal dwRop As Long) As Long
'Declare Function WNetConnectionDialog Lib "mpr.dll" Alias "WNetConnectionDialog" (ByVal hwnd As Long,ByVal dwType As Long) As Long
End Module
附上原代码:
VERSION 5.00
Begin VB.Form FrmWater
BackColor = &H00C0FFC0&
BorderStyle = 3 'Fixed Dialog
Caption = "水波"
ClientHeight = 6030
ClientLeft = 45
ClientTop = 435
ClientWidth = 8070
FillColor = &H00FFFFFF&
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Icon = "FrmWater.frx":0000
LinkTopic = "Form1"
MaxButton = 0 'False
MinButton = 0 'False
Picture = "FrmWater.frx":08CA
ScaleHeight = 402
ScaleMode = 3 'Pixel
ScaleWidth = 538
ShowInTaskbar = 0 'False
StartUpPosition = 2 '屏幕中心
Begin VB.Timer Timer2
Interval = 50
Left = 2760
Top = 3000
End
Begin VB.Timer Timer1
Interval = 45
Left = 2160
Top = 3000
End
End
Attribute VB_Name = "FrmWater"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Private Type POINTAPI
X As Long
Y As Long
End Type
Private Declare Function GetTickCount Lib "kernel32" () As Long
Private Type RGBQUAD '只有bibitcount为1，2，4时才有调色板
Blue As Byte '蓝色分量
Green As Byte '绿色分量
Red As Byte '红色分量
Reserved As Byte '保留值
End Type
Private Type BITMAPINFOHEADER '40 bytes
biSize As Long 'BITMAPINFOHEADER结构的大小
biWidth As Long
biHeight As Long
biPlanes As Integer '设备的为平面数，现在都是1
biBitCount As Integer '图像的颜色位图
biCompression As Long '压缩方式
biSizeImage As Long '实际的位图数据所占字节
biXPelsPerMeter As Long '目标设备的水平分辨率
biYPelsPerMeter As Long '目标设备的垂直分辨率
biClrUsed As Long '使用的颜色数
biClrImportant As Long '重要的颜色数。如果该项为0，表示所有颜色都是重要的
End Type
Private Type BITMAPINFO
bmiHeader As BITMAPINFOHEADER
bmiColors As RGBQUAD
End Type
Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type
'
Private Type DropData
X As Long
Y As Long
Radius As Long
Height As Long
End Type
Private Declare Function GetDIBits Lib "gdi32" (ByVal aHDC As Long,lpBits As Any,lpBI As BITMAPINFO,ByVal wUsage As Long) As Long
Private Declare Function SetDIBitsToDevice Lib "gdi32" (ByVal hdc As Long,Bits As Any,BitsInfo As BITMAPINFO,ByVal wUsage As Long) As Long
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Private Declare Function SetDIBits Lib "gdi32" (ByVal hdc As Long,ByVal wUsage As Long) As Long
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any,Source As Any,ByVal Length As Long)
Private Const DIB_RGB_COLORS = 0&
Private Const BI_RGB = 0&
Private Const PI As Double = 3.1415926
Private m_Width As Long
Private m_Height As Long
Private OldPixel() As Long
Private Pixel() As Long
Private WaveHeight() As Long
Private CurrentHeightBuffer As Long
Private NewHeightBuffer As Long
Private Drops(99) As DropData
Private DoubleHeight As Long
Private BmpInfo As BITMAPINFO
'************************VB版本云效果***********************
'**作者： laviewpbt
'**QQ: 33184777
'***********************************************************
Private Sub Form_DblClick()
Unload Me
End Sub
Private Sub Form_Load()
m_Width = Me.ScaleWidth
m_Height = Me.ScaleHeight
DoubleHeight = m_Height * 2
With BmpInfo.bmiHeader
.biSize = Len(BmpInfo.bmiHeader)
.biWidth = m_Width
.biHeight = m_Height
.biPlanes = 1
.biBitCount = 32
.biCompression = BI_RGB
End With
ReDim OldPixel(m_Width * m_Height - 1) As Long
ReDim Pixel(m_Width * m_Height - 1) As Long
ReDim WaveHeight(m_Width * m_Height * 2 - 1) As Long
GetDIBits Me.hdc,Me.Image.Handle,DIB_RGB_COLORS
GetDIBits Me.hdc,Pixel(0),DIB_RGB_COLORS
Randomize
CreateWaterDrops
End Sub
Private Sub DropWater(X As Long,Y As Long,Radius As Long,Height As Long)
Dim Distance As Long
Dim XX As Long
Dim YY As Long
Dim I As Long
Dim J As Long
Dim Ratio As Double
Ratio = PI / Radius
For I = -Radius To Radius
For J = -Radius To Radius
XX = X + I
YY = Y + J
If XX >= 0 And XX < m_Width And YY >= 0 And YY < m_Height Then
Distance = Sqr(I * I + J * J)
If Distance <= Radius Then
WaveHeight(XX * m_Height * 2 + YY * 2 + CurrentHeightBuffer) = Height * Cos(Distance * Ratio)
End If
End If
Next
Next
End Sub
'************************VB版本水波效果***********************
'**作者： laviewpbt
'**QQ: 33184777
'***********************************************************
Private Sub PaintWater()
Dim TimeUse As Long
Dim OffsetX As Long
Dim OffsetY As Long
Dim X As Long
Dim Y As Long
Dim Speed As Long
Dim Fast As Long
TimeUse = GetTickCount
NewHeightBuffer = (CurrentHeightBuffer + 1) Mod 2
CopyMemory Pixel(0),m_Width * m_Height * 4
For X = 1 To m_Width - 2
For Y = 1 To m_Height - 2
Speed = X * DoubleHeight + Y * 2 + NewHeightBuffer
Fast = X * DoubleHeight + Y * 2 + CurrentHeightBuffer
WaveHeight(Speed) = _
(WaveHeight(Fast - DoubleHeight) + _
WaveHeight(Fast - DoubleHeight - 2) + _
WaveHeight(Fast - 2) + _
WaveHeight(Fast + DoubleHeight - 2) + _
WaveHeight(Fast + DoubleHeight) + _
WaveHeight(Fast + DoubleHeight + 2) + _
WaveHeight(Fast + 2) + _
WaveHeight(Fast - DoubleHeight + 2)) \ 4 - _
WaveHeight(Speed)
WaveHeight(Speed) = WaveHeight(Speed) - WaveHeight(Speed) \ 32
OffsetX = (WaveHeight(Speed - DoubleHeight) - WaveHeight(Speed + DoubleHeight)) \ 16
OffsetY = (WaveHeight(Speed - 2) - WaveHeight(Speed + 2)) \ 16
If OffsetX <> 0 And OffsetY <> 0 Then
If X + OffsetX <= 0 Then
OffsetX = -X
ElseIf X + OffsetX >= m_Width - 1 Then
OffsetX = m_Width - X - 1
End If
If Y + OffsetY <= 0 Then
OffsetY = -Y
ElseIf Y + OffsetY >= m_Height - 1 Then
OffsetY = m_Height - Y - 1
End If
Pixel(X + Y * m_Width) = OldPixel(X + OffsetX + (Y + OffsetY) * m_Width)
End If
Next
Next
CurrentHeightBuffer = NewHeightBuffer
SetDIBitsToDevice Me.hdc,DIB_RGB_COLORS
Me.Caption = GetTickCount - TimeUse
End Sub
Private Sub CreateWaterDrops()
Dim I As Long
Dim DropX As Long
Dim DropY As Long
Dim DropRadius As Long
Dim Height As Long
Dim Percent As Long
Percent = 0.0015 * (m_Width + m_Height)
For I = 0 To 99
DropX = Rnd * m_Width
DropY = Rnd * m_Height
Height = Rnd * 400
DropRadius = Rnd * 4 * Percent
If DropRadius < 4 Then DropRadius = 4
Drops(I).X = DropX
Drops(I).Y = DropY
Drops(I).Height = Height
Drops(I).Radius = DropRadius
Next
End Sub
Private Sub Timer1_Timer()
Dim I As Long
Dim Percent As Long
Dim DropsNumber As Long
Dim Index As Long
Percent = 0.005 * (m_Width + m_Height)
DropsNumber = Rnd * Percent
For I = 0 To DropsNumber - 1
Index = Rnd * 99
DropWater Drops(Index).X,Drops(Index).Height
Next
End Sub
Private Sub Timer2_Timer()
PaintWater
End Sub