C# と VB.NET の質問掲示板

> こういうことですか！？

…やってみました? 

---- PictureBox1 のイメージをひっくり返して PictureBox2 に描く。

        Dim source As Bitmap = PictureBox1.Image
        Dim target As Bitmap = New Bitmap(source.Width, source.Height)
        Dim x As Integer
        Dim y As Integer
        For x = 0 To source.Width - 1
            For y = 0 To source.Height - 1
                target.SetPixel(source.Width - x - 1, source.Height - y - 1, source.GetPixel(x, y))
            Next
        Next
        PictureBox2.Image = target