Visual Basic Source Code/Visual Basic Source Code.iso/vbsource/effect1a/frminfin.frm

Text File | 1999-09-04 | 6KB | 168 lines

VERSION 5.00
Begin VB.Form Form1
   BorderStyle     =   1  'Fixed Single
   Caption         =   "Effects using the line property of the picture box control"
   ClientHeight    =   3180
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   5940
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   3180
   ScaleWidth      =   5940
   StartUpPosition =   3  'Windows Default
   Begin VB.CommandButton Command3
      Caption         =   "Stop Timer"
      Height          =   495
      Left            =   4920
      TabIndex        =   7
      Top             =   1920
      Width           =   735
   End
   Begin VB.CommandButton Command2
      Caption         =   "Move lines"
      Height          =   495
      Left            =   3840
      TabIndex        =   6
      Top             =   1920
      Width           =   735
   End
   Begin VB.Timer Timer1
      Left            =   0
      Top             =   2760
   End
   Begin VB.CommandButton Command1
      Caption         =   "Clear"
      Height          =   375
      Left            =   4080
      TabIndex        =   5
      Top             =   2640
      Width           =   1215
   End
   Begin VB.CommandButton cmdrgradient
      Caption         =   "radial gradient "
      Height          =   735
      Left            =   4920
      TabIndex        =   4
      Top             =   960
      Width           =   735
   End
   Begin VB.CommandButton cmdgradient
      Caption         =   "black to blue gradient"
      Height          =   735
      Left            =   4920
      TabIndex        =   3
      Top             =   120
      Width           =   735
   End
   Begin VB.CommandButton cmdcurve
      Caption         =   "draw a curve"
      Height          =   735
      Left            =   3840
      TabIndex        =   2
      Top             =   960
      Width           =   735
   End
   Begin VB.CommandButton cmd
      Caption         =   "draw infinity"
      Height          =   735
      Left            =   3840
      TabIndex        =   1
      Top             =   120
      Width           =   735
   End
   Begin VB.PictureBox Picture1
      AutoRedraw      =   -1  'True
      BackColor       =   &H80000009&
      DrawWidth       =   3
      Height          =   2895
      Left            =   240
      ScaleHeight     =   400
      ScaleMode       =   0  'User
      ScaleWidth      =   386.026
      TabIndex        =   0
      Top             =   120
      Width           =   3375
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub cmd_click()
Picture1.DrawWidth = 1                           'algorithms draw a line from the boder to the center of the picture box
                                                 'going all the way around the border to create an infinity effect
For c = 1 To Picture1.ScaleHeight Step 15
 Picture1.Line (0, a)-(Picture1.ScaleHeight / 2, Picture1.ScaleWidth / 2)
Next c

For c = 1 To Picture1.ScaleHeight Step 15
 Picture1.Line (a, 0)-(Picture1.ScaleHeight / 2, Picture1.ScaleWidth / 2)
Next c

For c = 1 To Picture1.ScaleHeight Step 15
 Picture1.Line (Picture1.ScaleWidth, Picture1.ScaleHeight - c)-(0, c)

Next c

For c = 1 To Picture1.ScaleHeight Step 15
 Picture1.Line (Picture1.ScaleWidth - c, Picture1.ScaleHeight)-(c, 0)
Next c

End Sub


Private Sub Cmdcurve_Click()
Picture1.DrawWidth = 1
For i = 1 To 400 Step 10
Picture1.Line (i, 0)-(Picture1.ScaleWidth, i)
Next i

Picture1.DrawWidth = 1
For i = 1 To 400 Step 10
Picture1.Line (i, Picture1.ScaleHeight)-(0, i)
Next i
End Sub

Private Sub cmdgradient_Click()
For i = 1 To 400
Picture1.Line (i, Picture1.ScaleHeight)-(i, 0), RGB(0, 0, i)         'this makes a wash from black to blue
Next i
End Sub                                                              'it draws a line and every line it draws the value of the rgb gets +1
                                                                     'creating a gradient effect
                                                                     'same for the radial gradient, just drawing circles

Private Sub Cmdrgradient_Click()
Picture1.DrawWidth = 3
For i = 1 To 400
Picture1.Circle (200, 200), i, RGB(0, 0, i)
Next i

End Sub


Private Sub Command1_Click()
Picture1.BackColor = &H80000009          'this button clears the image and sets the scale width and scale height
Picture1.ScaleHeight = 400               'of the picturebox back to 400
Picture1.ScaleWidth = 400
End Sub

Private Sub Command2_Click()
Timer1.Interval = 200                    'starts the timer

End Sub

Private Sub Command3_Click()
Timer1.Interval = 0                      'stops the timer
End Sub

Private Sub Timer1_Timer()
Picture1.BackColor = &H80000009                         'this functions clears then subtracts 10 from the scale height and scale width of the picture box
Picture1.ScaleWidth = Picture1.ScaleWidth - 10          'then redraws the curved lines to make it look like your getting closer to the lines
Picture1.ScaleHeight = Picture1.ScaleHeight - 10
Call Cmdcurve_Click
If Picture1.ScaleHeight < 40 Then Timer1.Interval = 0   'stops the timer when picture1.scaleheight < 40 because if it didn't there would be an overflow error
End Sub