form1.vb

Visual.Basic.NET实用编程百例-47.6M.zip

Imports System
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Imaging

Public Class Form1
    Inherits System.Windows.Forms.Form
    Private sample1 As System.Drawing.Image
    Private FileName As String
    Private g As Graphics


#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化
        g = Me.CreateGraphics()
        FileName = "实例61.bmp"
        'sample1 = New Bitmap(FileName)
    End Sub

    '窗体重写处置以清理组件列表。
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Windows 窗体设计器所必需的
    Private components As System.ComponentModel.IContainer

    '注意：以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Name = "Form1"
        Me.Text = "窗体背景图"

    End Sub

#End Region

    Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
        Dim i As Integer, j As Integer
        Dim x As Integer
        sample1 = New Bitmap("PURCUBE.gif")
        '利用循环，平铺图形
        For j = 0 To Me.Height Step sample1.Height
            For i = 0 To Me.Width Step sample1.Width
                g.DrawImage(sample1, i, j)
            Next i
        Next j
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub
End Class