flip.frm

图形处理实现翻转的代码

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   4365
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   5640
   LinkTopic       =   "Form1"
   ScaleHeight     =   4365
   ScaleWidth      =   5640
   StartUpPosition =   3  'Windows Default
   Begin VB.CommandButton Command1 
      Caption         =   "垂直翻转"
      Height          =   495
      Index           =   1
      Left            =   960
      TabIndex        =   2
      Top             =   3720
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "水平翻转"
      Height          =   495
      Index           =   0
      Left            =   3240
      TabIndex        =   1
      Top             =   3720
      Width           =   1215
   End
   Begin VB.PictureBox Picture1 
      AutoSize        =   -1  'True
      Height          =   3180
      Left            =   240
      Picture         =   "Flip.frx":0000
      ScaleHeight     =   3120
      ScaleWidth      =   5100
      TabIndex        =   0
      Top             =   240
      Width           =   5160
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'这个程序演示如何翻转图片
'
'作者      陈锐
'
'E-Mail     [e-mail]
'           [e-mail]
'
'WebSite    http://vbtips.yeah.net

Option Explicit
   
Dim bHort As Boolean
Dim bVert As Boolean
Private Sub Command1_Click(Index As Integer)
    Dim pic As StdPicture
    
    Set pic = Picture1.Picture
   
    Picture1.Cls
    Select Case Index
        Case 0
            bHort = Not bHort
        Case 1
            bVert = Not bVert
    End Select
    
    If bHort And bVert Then
        Picture1.PaintPicture pic, Picture1.Width, Picture1.Height, _
            Picture1.Width * -1, Picture1.Height * -1
    ElseIf bHort And Not bVert Then
        Picture1.PaintPicture pic, Picture1.Width, 0, _
            Picture1.Width * -1, Picture1.Height
    ElseIf Not bHort And bVert Then
        Picture1.PaintPicture pic, 0, Picture1.Height, _
            Picture1.Width, Picture1.Height * -1
    Else
        Picture1.PaintPicture pic, 0, 0
    End If
End Sub