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Visual Basic Source Code
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redtop
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saver.frm
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1994-11-27
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7KB
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239 lines
VERSION 2.00
Begin Form frmSaver
BackColor = &H00000000&
BorderStyle = 0 'None
ClientHeight = 2940
ClientLeft = 285
ClientTop = 3150
ClientWidth = 6990
ControlBox = 0 'False
Height = 3345
Icon = SAVER.FRX:0000
KeyPreview = -1 'True
Left = 225
LinkMode = 1 'Source
LinkTopic = "Form1"
MaxButton = 0 'False
MinButton = 0 'False
ScaleHeight = 2940
ScaleWidth = 6990
Top = 2805
Width = 7110
Begin PictureClip pclRedTop
Cols = 6
Location = "5940,2745,60,960"
Picture = SAVER.FRX:0302
Rows = 3
End
Begin Image imgRedTop
Height = 855
Left = 0
Top = 0
Visible = 0 'False
Width = 915
End
End
Option Explicit
Dim FirstTime As Integer
Dim PicIndex As Integer
Dim y1 As Integer
Dim x1 As Integer
Dim incY1 As Integer
Dim incX1 As Integer
Dim picWidth As Integer
Dim picHeight As Integer
Dim LastX As Integer
Dim LastY As Integer
'
' Invoked upon an event that could end the screen saver
' ie. KeyDown, MouseDown, MouseMove
'
Sub EndScreenSaver ()
Dim i As Integer
On Error GoTo Fred
frmSaver.Enabled = False
Call ShowMouse
If PWprotected Then
' Load up the password form
ValidPassword = False
frmEnterPass.Show 1
' Decide what to do
Select Case ValidPassword
Case 1 ' Valid
End
Case 2 ' Canceled
' Reset this form to be TopMost
SetWindowPos Me.hWnd, -1, 0, 0, 0, 0, 3
' Set the Form to be System Modal (Ouch!)
i = SetSysModalWindow(hWnd)
Call HideMouse
frmSaver.Enabled = True
Exit Sub
Case 3 ' Invalid
frmError.Show 1
' Reset this form to be TopMost
SetWindowPos Me.hWnd, -1, 0, 0, 0, 0, 3
' Set the Form to be System Modal (Ouch!)
i = SetSysModalWindow(hWnd)
Call HideMouse
frmSaver.Enabled = True
Exit Sub
End Select
End If
' if not password protected then stop the Screen Saver
End
Fred:
frmSaver.Enabled = True
' Reset this form to be TopMost
SetWindowPos Me.hWnd, -1, 0, 0, 0, 0, 3
' Set the Form to be System Modal (Ouch!)
i = SetSysModalWindow(hWnd)
Call HideMouse
Exit Sub
End Sub
Sub Form_Activate ()
' The first time the form is activated after it has loaded
If FirstTime Then
FirstTime = False
' Call the Screen Saver Initialization routine
Call InitRedTop
' Call the Main Screen Saver Loop
Call RedTop
End If
End Sub
Sub Form_KeyDown (KeyCode As Integer, Shift As Integer)
' If any key is pressed then
' Set coords to 0 so as not to catch a
' mouse move over the password form
LastX = 0
LastY = 0
EndScreenSaver
End Sub
Sub Form_Load ()
Dim i As Integer
FirstTime = True
'Maximize the Window (Which is all black) - It is a screen saver after all!
WindowState = 2
' Set the form to be TopMost
SetWindowPos Me.hWnd, -1, 0, 0, 0, 0, 3
' Set the Form to be System Modal (Ouch!)
i = SetSysModalWindow(hWnd)
End Sub
Sub Form_MouseDown (Button As Integer, Shift As Integer, X As Single, Y As Single)
' If either mouse Button is pressed then
' Set coords to 0 so as not to catch a
' mouse move over the password form
LastX = 0
LastY = 0
EndScreenSaver
End Sub
Sub Form_MouseMove (Button As Integer, Shift As Integer, X As Single, Y As Single)
' Only Check for mouse move is the user has
' asked for this check in the Setup form.
If MouseMove = 0 Then
If LastX = 0 Or LastY = 0 Then
' first time round or return from EndScreenSaver
LastX = X
LastY = Y
End If
' If This position is not near the last position recorded
If Abs(LastX - X) > 2 * Screen.TwipsPerPixelX Or Abs(LastY - Y) > 2 * Screen.TwipsPerPixelY Then
' Set coords to 0 so as not to catch a
' mouse move over the password form
LastX = 0
LastY = 0
EndScreenSaver
Else
' Remember the position for the next MouseMove event
LastX = X
LastY = Y
End If
End If
End Sub
'
' Initialize the Screen Saver
'
Sub InitRedTop ()
' Set the First Graphic from the PicClip
PicIndex = 0
imgRedTop.Picture = pclRedTop.GraphicCell(PicIndex)
' Set the width & height of the picture box
picWidth = 66 * Screen.TwipsPerPixelX
picHeight = 61 * Screen.TwipsPerPixelY
' Set the Start coordinates
x1 = 0
y1 = 0
' Set the increments in both x and y directions
incX1 = 25
incY1 = 20
' Make the image visible
imgRedTop.Visible = True
End Sub
'
' The Screen Saver Main Loop
'
' This loop only ends on the termination of the Screen Saver
'
Sub RedTop ()
Dim i As Integer
While True ' forever!
' Get next image from PicClip
PicIndex = PicIndex + 1
If PicIndex = 18 Then PicIndex = 0
imgRedTop.Picture = pclRedTop.GraphicCell(PicIndex)
' Get next position
y1 = y1 + incY1
x1 = x1 + incX1
' Check for edges of screen and if necessary change direction
If y1 >= Screen.Height - picHeight Or y1 <= 0 Then
incY1 = -1 * incY1
End If
If x1 >= Screen.Width - picWidth Or x1 <= 0 Then
incX1 = -1 * incX1
End If
' move the image
imgRedTop.Move x1, y1
' Make sure everything is painted properly
DoEvents
' a rather crude way of slowing the display down
' without impacting on the system as a whole
For i = 0 To (500 - SpinSpeed)
DoEvents
Next i
Wend
End Sub