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把图象文件转换成XML格式文件
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来源：不详 作者：未知 点击数： |
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Me.Label1.TabIndex = 4
'
'Label2
'
Me.Label2.Location = New System.Drawing.Point(367, 437)
Me.Label2.Name = "Label2"
Me.Label2.Size = New System.Drawing.Size(130, 16)
Me.Label2.TabIndex = 5
Me.Label2.Text = "【孟宪会之精彩世界】"
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(500, 480)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label2, Me.Label1, _
Me.Button3, Me.PictureBox1, Me.Button2, Me.Button1})
Me.Name = "Form1"
Me.Text = "图象文件和XML格式文件互换例子"
Me.ResumeLayout(False)
End Sub
#End Region
Private MyFile As String = ""
Private MyFileExt As String = ""
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles Button2.Click
Dim pic As String
Dim MyXml As System.Xml.XmlDocument = New System.Xml.XmlDocument()
MyXml.Load("c:\MyPhoto.xml")
Dim picNode As System.Xml.XmlNode
picNode = MyXml.SelectSingleNode("/pic/photo")
pic = picNode.InnerText
Dim memoryStream As System.IO.MemoryStream
memoryStream = New System.IO.MemoryStream(Convert.FromBase64String(pic))
Me.PictureBox1.Image = New System.Drawing.Bitmap(memoryStream)
memoryStream.Close()
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles Button1.Click
If MyFile = "" Then
MessageBox.Show("请选择一个图片！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Warning)
Exit Sub
End If
Dim MyImg As System.Drawing.Image = MyImg.FromFile(MyFile)
Dim memoryStream As System.IO.MemoryStream = New System.IO.MemoryStream()
MyImg.Save(memoryStream, GetImageType(MyFileExt))
Dim b() As Byte
b = memoryStream.GetBuffer()
Dim pic As String = Convert.ToBase64String(b)
memoryStream.Close()
Dim MyXml As System.Xml.XmlDocument = New System.Xml.XmlDocument()
MyXml.LoadXml("<pic><name>孟宪会</name><photo>" + pic + "</photo></pic>")
MyXml.Save("c:\MyPhoto.xml")
Label1.Text = "文件被保存到了：" + Microsoft.VisualBasic.ChrW(13) + "c:\MyPhoto.xml"
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles Button3.Click
Dim openFileDialog1 As New OpenFileDialog()
openFileDialog1.InitialDirectory = "c:\"
openFileDialog1.Filter = "PNG(*.png)|*.png|Gif(*.gif)|*.gif|Jpg(*.jpg)|*.jpg|所有图象文件(*.*)|*.*" |
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