Blob Screen Saver (266K)
Simple Transparent Sprites Demo (35K)
Transparent Sprite Classes (8K)
24 Jun 1998
First Posted
Subclassing Without The Crashes
vbAccelerator - Contents of code file: fOptions.frm
VERSION 5.00
Begin VB.Form frmOptions
BorderStyle = 3 'Fixed Dialog
Caption = "BlobSaver Options"
ClientHeight = 5685
ClientLeft = 6180
ClientTop = 1980
ClientWidth = 5640
Icon = "fOptions.frx":0000
LinkTopic = "Form1"
MaxButton = 0 'False
MinButton = 0 'False
ScaleHeight = 5685
ScaleWidth = 5640
ShowInTaskbar = 0 'False
Begin VB.CommandButton cmdOK
Caption = "OK"
Default = -1 'True
Height = 375
Left = 3120
TabIndex = 14
Top = 5220
Width = 1215
End
Begin VB.CommandButton cmdCancel
Cancel = -1 'True
Caption = "Cancel"
Height = 375
Left = 4380
TabIndex = 13
Top = 5220
Width = 1215
End
Begin VB.Frame fraSep
Height = 75
Left = -240
TabIndex = 6
Top = 5040
Width = 6675
End
Begin BlobSaver.cSlider sldDistribution
Height = 435
Left = 900
TabIndex = 0
Top = 2940
Width = 3735
_ExtentX = 6800
_ExtentY = 767
Value = 0
End
Begin BlobSaver.cSlider sldIdiocy
Height = 435
Left = 900
TabIndex = 2
Top = 1260
Width = 3735
_ExtentX = 6588
_ExtentY = 767
Value = 0
End
Begin BlobSaver.cSlider sldBlobs
Height = 435
Left = 900
TabIndex = 4
Top = 4260
Width = 3735
_ExtentX = 6588
_ExtentY = 767
Max = 64
End
Begin VB.Image imgVBA
Height = 660
Left = 150
Picture = "fOptions.frx":030A
Top = 90
Width = 2535
End
Begin VB.Label Label2
Alignment = 1 'Right Justify
BackColor = &H000040C0&
Caption = "Resource "
BeginProperty Font
Name = "Arial"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00FFFFFF&
Height = 255
Left = 2880
TabIndex = 17
Top = 435
Width = 2535
End
Begin VB.Label Label1
Alignment = 1 'Right Justify
BackColor = &H000080FF&
Caption = " The VB Programmer's "
BeginProperty Font
Name = "Arial"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00FFFFFF&
Height = 255
Left = 2580
TabIndex = 16
Top = 180
Width = 2835
End
Begin VB.Label lblAccel
BackColor = &H00404080&
BorderStyle = 1 'Fixed Single
Height = 735
Left = 120
TabIndex = 15
Top = 60
Width = 5415
End
Begin VB.Label lblOutOfIt
Alignment = 2 'Center
Caption = "Out of It"
Height = 195
Left = 4140
TabIndex = 12
Top = 1680
Width = 735
End
Begin VB.Label lblSane
Alignment = 2 'Center
Caption = "Sane"
Height = 195
Left = 720
TabIndex = 11
Top = 1680
Width = 735
End
Begin VB.Label lblPurple
Alignment = 2 'Center
Caption = "Purple"
Height = 195
Left = 720
TabIndex = 10
Top = 3360
Width = 735
End
Begin VB.Label lblGold
Alignment = 2 'Center
Caption = "Goldie"
Height = 195
Left = 4140
TabIndex = 9
Top = 3360
Width = 735
End
Begin VB.Label lblTooMany
Alignment = 2 'Center
Caption = "Too Many"
Height = 195
Left = 4140
TabIndex = 8
Top = 4740
Width = 735
End
Begin VB.Label lblTooFew
Alignment = 2 'Center
Caption = "Too Few"
Height = 195
Left = 720
TabIndex = 7
Top = 4740
Width = 735
End
Begin VB.Label lblBlobCount
Caption = "Number of Blobs"
Height = 255
Left = 960
TabIndex = 5
Top = 3960
Width = 3495
End
Begin VB.Label lblSilly
Caption = "Idiocy Frequency"
Height = 255
Left = 960
TabIndex = 3
Top = 960
Width = 3495
End
Begin VB.Label lblDistribution
Caption = "Distribution:"
Height = 255
Left = 960
TabIndex = 1
Top = 2640
Width = 3495
End
End
Attribute VB_Name = "frmOptions"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Private m_cSp(1 To 4) As cSprite
Private m_cStage As cBitmap
Private WithEvents m_tmr As CTimer
Attribute m_tmr.VB_VarHelpID = -1
Private m_bInHere As Boolean
Private Sub cmdCancel_Click()
pUnloadAnimation
Unload Me
End Sub
Private Sub cmdOK_Click()
pUnloadAnimation
pWriteSettings
Unload Me
End Sub
Private Sub pWriteSettings()
Dim cR As New cRegistry
cR.ClassKey = HKEY_CURRENT_USER
cR.SectionKey = "Software\vbaccelerator\Blob Saver"
cR.ValueType = REG_DWORD
cR.ValueKey = "Idiocy"
cR.Value = sldIdiocy.Value
cR.ValueKey = "Proportion"
cR.Value = sldDistribution.Value
cR.ValueKey = "Number"
cR.Value = sldBlobs.Value
End Sub
Private Sub pUnloadAnimation()
Dim iOutLoop As Long
Dim lTIme As Long
Dim i As Long
Dim lHDC As Long
m_bInHere = False
For iOutLoop = 1 To m_cSp(1).Width
lTIme = timeGetTime
' Restore the stage to its original state:
For i = 1 To 4
m_cSp(i).RestoreBackground m_cStage.hDC
Next i
' Move & Store backgrounds:
For i = 1 To 4
With m_cSp(i)
If (i = 1) Or (i = 3) Then
.x = .x - 1
Else
.x = .x + 1
End If
If (i < 3) Then
.y = .y + 1
Else
.y = .y - 1
End If
End With
m_cSp(i).StoreBackground m_cStage.hDC, m_cSp(i).x, m_cSp(i).y
Next i
' draw new sprite cell:
For i = 1 To 4
With m_cSp(i)
.Cell = .Cell + 1
If (.Cell > 35) Then
.Cell = 1
End If
.TransparentDraw m_cStage.hDC, .x, .y, .Cell, False
End With
Next i
' Transfer changes:
lHDC = Me.hDC
For i = 1 To 4
m_cSp(i).StageToScreen lHDC, m_cStage.hDC
Next i
Do
DoEvents
Loop While lTIme + 15 > timeGetTime
Next iOutLoop
End Sub
Private Sub Form_Load()
Dim lW As Long, lH As Long
Dim i As Long
Dim hBr As Long
Dim tR As RECT
sldIdiocy.Value = g_lIdiocy
sldDistribution.Value = g_iProportion
sldBlobs.Value = g_iSpriteNum
For i = 1 To 4
Set m_cSp(i) = New cSprite
With m_cSp(i)
Select Case i
Case 1
.SpriteData = g_cSBs
.x = 0: .y = (lblAccel.Top + lblAccel.Height) \
Screen.TwipsPerPixelY
Case 2
m_cSp(2).SpriteData = g_cSBA
.x = Me.ScaleWidth \ Screen.TwipsPerPixelX - .Width: .y =
m_cSp(1).y
Case 3
m_cSp(3).SpriteData = g_cSBs
.y = m_cSp(1).y + .Height: .x = 0
Case 4
m_cSp(4).SpriteData = g_cSB
.y = m_cSp(3).y: .x = m_cSp(2).x
End Select
.Cell = Rnd * 35
.Create Me.hDC
End With
Next i
Set m_cStage = New cBitmap
lW = Me.Width \ Screen.TwipsPerPixelX
lH = Me.Height \ Screen.TwipsPerPixelY
m_cStage.CreateAtSize lW, lH
hBr = CreateSolidBrush(GetSysColor(COLOR_BTNFACE))
tR.Right = lW: tR.Bottom = lH
FillRect m_cStage.hDC, tR, hBr
DeleteObject hBr
Me.Show
Set m_tmr = New CTimer
m_bInHere = True
m_tmr.Interval = 250
End Sub
Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
m_bInHere = False
End Sub
Private Sub m_tmr_ThatTime()
Dim i As Long
Dim lHDC As Long
Dim lTIme As Long
Dim bFirstTime As Boolean
m_tmr.Interval = 0
Set m_tmr = Nothing
bFirstTime = True
Do
lTIme = timeGetTime
' Restore the stage to its original state:
For i = 1 To 4
m_cSp(i).RestoreBackground m_cStage.hDC
Next i
' Store backgrounds:
For i = 1 To 4
m_cSp(i).StoreBackground m_cStage.hDC, m_cSp(i).x, m_cSp(i).y
Next i
' draw new sprite cell:
For i = 1 To 4
With m_cSp(i)
.Cell = .Cell + 1
If (.Cell > 35) Then
.Cell = 1
End If
.TransparentDraw m_cStage.hDC, .x, .y, .Cell, False
End With
Next i
' Transfer changes:
lHDC = Me.hDC
For i = 1 To 4
m_cSp(i).StageToScreen lHDC, m_cStage.hDC
Next i
Do
DoEvents
Loop While lTIme + 15 > timeGetTime And m_bInHere
Loop While (m_bInHere)
End Sub
Private Sub sldPercent_Scroll(ByVal lPos As Long)
Debug.Print lPos
End Sub
