Contenu du snippet
Plusieurs programmeurs sur visual basic cherche a crée des effets graphique. Mes le problème et le temps de la réalisation.
Jai retrouve la solution pour faire des effets plus vite..
Exemple :
CreateEff "Inverse",Picture1.hdc, Picture1.ScaleWidth, Picture1.ScaleHeight, Picture2.hdc
CreateEff "Clear",Picture1.hdc, Picture1.ScaleWidth, Picture1.ScaleHeight, Picture2.hdc
Jai retrouve la solution pour faire des effets plus vite..
Source / Exemple :
Private Const BI_RGB = 0&
Private Const DIB_RGB_COLORS = 0 ' color table in RGBs
Private Type BITMAPINFOHEADER '40 bytes
biSize As Long
biWidth As Long
biHeight As Long
biPlanes As Integer
biBitCount As Integer
biCompression As Long
biSizeImage As Long
biXPelsPerMeter As Long
biYPelsPerMeter As Long
biClrUsed As Long
biClrImportant As Long
End Type
Private Type RGBQUAD
rgbBlue As Byte
rgbGreen As Byte
rgbRed As Byte
rgbReserved As Byte
End Type
Private Type BITMAPINFO
bmiHeader As BITMAPINFOHEADER
bmiColors As RGBQUAD
End Type
Private Declare Function CreateCompatibleDC Lib "gdi32" (ByVal hdc As Long) As Long
Private Declare Function CreateDIBSection Lib "gdi32" (ByVal hdc As Long, pBitmapInfo As BITMAPINFO, ByVal un As Long, ByVal lplpVoid As Long, ByVal handle As Long, ByVal dw As Long) As Long
Private Declare Function GetDIBits Lib "gdi32" (ByVal aHDC As Long, ByVal hBitmap As Long, ByVal nStartScan As Long, ByVal nNumScans As Long, lpBits As Any, lpBI As BITMAPINFO, ByVal wUsage As Long) As Long
Private Declare Function SetDIBitsToDevice Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, ByVal y 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, Bits As Any, BitsInfo As BITMAPINFO, ByVal wUsage As Long) As Long
Private Declare Function SelectObject Lib "gdi32" (ByVal hdc As Long, ByVal hObject As Long) As Long
Private Declare Function DeleteDC Lib "gdi32" (ByVal hdc As Long) As Long
Private Declare Function DeleteObject Lib "gdi32" (ByVal hObject As Long) As Long
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
Dim iBitmap As Long, iDC As Long
Public Sub CreateEff(Eff As String, OrgHdc As Long, vW As Single, vH As Single, Newhdc As Long)
On Error Resume Next
Dim bi24BitInfo As BITMAPINFO, bBytes() As Byte, Cnt As Long
With bi24BitInfo.bmiHeader
.biBitCount = 24
.biCompression = BI_RGB
.biPlanes = 1
.biSize = Len(bi24BitInfo.bmiHeader)
.biWidth = vW
.biHeight = vH
End With
ReDim bBytes(1 To bi24BitInfo.bmiHeader.biWidth * bi24BitInfo.bmiHeader.biHeight * 4) As Byte
iDC = CreateCompatibleDC(OrgHdc)
iBitmap = CreateDIBSection(iDC, bi24BitInfo, DIB_RGB_COLORS, ByVal 0&, ByVal 0&, ByVal 0&)
SelectObject iDC, iBitmap
BitBlt iDC, 0, 0, bi24BitInfo.bmiHeader.biWidth, bi24BitInfo.bmiHeader.biHeight, OrgHdc, 0, 0, vbSrcCopy
GetDIBits iDC, iBitmap, 0, bi24BitInfo.bmiHeader.biHeight, bBytes(1), bi24BitInfo, DIB_RGB_COLORS
Select Case Eff
Case "Inverse"
For Cnt = LBound(bBytes) To UBound(bBytes)
bBytes(Cnt) = 255 - bBytes(Cnt)
Next Cnt
Case "Ombre"
For Cnt = LBound(bBytes) To UBound(bBytes)
bBytes(Cnt) = bBytes(Cnt) * 0.5
Next Cnt
Case "Cellule"
For Cnt = LBound(bBytes) To UBound(bBytes)
mutip = Tan(Abs(Cos(Abs(((Cnt * 50) / (15)))))) / 1.5
If Int(bBytes(Cnt) * mutip) > 255 Then
bBytes(Cnt) = (bBytes(Cnt))
Else
bBytes(Cnt) = Int(bBytes(Cnt) * mutip)
End If
Next Cnt
Case "Confus"
For Cnt = LBound(bBytes) To UBound(bBytes)
mutip = (bBytes(Cnt)) Xor 25
bBytes(Cnt) = mutip
Next Cnt
Case "Clear"
For Cnt = LBound(bBytes) To UBound(bBytes) Step 3
mutip = bBytes(Cnt) * 0.9
bBytes(Cnt) = (mutip)
Next Cnt
Case "Blue"
For Cnt = LBound(bBytes) To UBound(bBytes) Step 3
bBytes(Cnt + 1) = 0
bBytes(Cnt + 2) = 0
Next Cnt
Case "Green"
For Cnt = LBound(bBytes) To UBound(bBytes) Step 3
bBytes(Cnt) = 0
bBytes(Cnt + 2) = 0
Next Cnt
Case "Red"
For Cnt = LBound(bBytes) To UBound(bBytes) Step 3
bBytes(Cnt) = 0
bBytes(Cnt + 1) = 0
Next Cnt
Case "Soft"
For Cnt = LBound(bBytes) To UBound(bBytes) Step 3
bBytes(Cnt) = GetMin(bBytes(Cnt) * Tan(Abs(Cos(Cnt * 2))))
bBytes(Cnt + 1) = GetMin(bBytes(Cnt + 1) * Tan(Abs(Cos(Cnt * 2))))
bBytes(Cnt + 2) = GetMin(bBytes(Cnt + 2) * Tan(Abs(Cos(Cnt * 2))))
Next Cnt
Case "Change"
For Cnt = LBound(bBytes) To UBound(bBytes) Step 3
mbd = bBytes(Cnt)
mvd = bBytes(Cnt + 1)
mrd = bBytes(Cnt + 2)
bBytes(Cnt) = mvd
bBytes(Cnt + 1) = mrd
bBytes(Cnt + 2) = mbd
Next Cnt
Case "Noir et Blanc"
For Cnt = LBound(bBytes) To UBound(bBytes) Step 3
mbd = bBytes(Cnt)
mvd = bBytes(Cnt + 1)
mrd = bBytes(Cnt + 2)
bBytes(Cnt) = mvd
bBytes(Cnt + 1) = mvd
bBytes(Cnt + 2) = mvd
Next Cnt
Case "Dark"
For Cnt = LBound(bBytes) To UBound(bBytes) - 3 Step 3
bBytes(Cnt) = bBytes(Cnt) * Cnt / UBound(bBytes)
bBytes(Cnt + 1) = bBytes(Cnt + 1) * Cnt / UBound(bBytes)
bBytes(Cnt + 2) = bBytes(Cnt + 2) * Cnt / UBound(bBytes)
Next Cnt
End Select
SetDIBitsToDevice Newhdc, 0, 0, bi24BitInfo.bmiHeader.biWidth, bi24BitInfo.bmiHeader.biHeight, 0, 0, 0, bi24BitInfo.bmiHeader.biHeight, bBytes(1), bi24BitInfo, DIB_RGB_COLORS
DeleteDC iDC
DeleteObject iBitmap
End Sub
Public Function GetMin(v1)
GetMin = v1
If v1 > 255 Then
GetMin = 255
End If
If v1 < 0 Then
GetMin = 0
End If
End Function
Conclusion :
Exemple :
CreateEff "Inverse",Picture1.hdc, Picture1.ScaleWidth, Picture1.ScaleHeight, Picture2.hdc
CreateEff "Clear",Picture1.hdc, Picture1.ScaleWidth, Picture1.ScaleHeight, Picture2.hdc
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24 oct. 2005 à 17:48
- Messages postés
-
15814
- Date d'inscription
- jeudi 8 août 2002
- Statut
- Modérateur
- Dernière intervention
- 4 mars 2013
13119 mars 2004 à 13:30
Donc je mets 10 pour remonter cette note ridicule !
DarK Sidious
1 mars 2002 à 17:44
g po dit qu'c'était une prouesse Mémère, je disais ça pour moi, pour m'excuser et montrer ma sincérité...
t po un peu râleur toi aussi ? :)
28 févr. 2002 à 15:00
28 févr. 2002 à 01:10
tchao à tous VBistes, @+
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