求将JPG图像顺时针旋转90度并保存覆盖原文件的代码

[tong730]

大家好,100分求将JPG图像顺时针或逆时针旋转90度并保存覆盖原文件的代码

[wzuomin]

‘vs2005

    Private WithEvents TestPic As New PictureBox

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        TestPic.BorderStyle = BorderStyle.FixedSingle
        TestPic.Dock = DockStyle.Fill
        Me.Controls.Add(TestPic)
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim ofd As New OpenFileDialog
        ofd.Filter = "Jpg|*.jpg"
        If ofd.ShowDialog = Windows.Forms.DialogResult.OK Then
            Dim img As Image = Image.FromFile(ofd.FileName)
            img.RotateFlip(RotateFlipType.Rotate90FlipNone)
            TestPic.Image = img
            img.Save(ofd.FileName)
        End If
    End Sub

[oo渣渣oo]

强！帮顶当收藏！！！

[tong730]

厉害呀 逆时针90度 和180度 是如何实现?

[wzuomin]

关键就在这句
img.RotateFlip(RotateFlipType.Rotate90FlipNone)

RotateFlipType参考http://msdn.microsoft.com/zh-cn/library/system.drawing.rotatefliptype.aspx