c# - 使用 SizeMode ZOOM 从 Picturebox 中选取颜色

Question

如何从 ZOOMed Picture 框中获取点(鼠标光标的位置)的颜色？

我当前的代码不起作用

Private Sub pickColor(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles picBox.MouseClick
    Dim TempBitmap As New Bitmap(picBox.Image)
    Dim MyColor As Color
    MyColor = TempBitmap.GetPixel(e.X, e.Y)
End Sub

Answer 1

你可以尝试这样的事情:

Private Sub pickColor(ByVal sender As Object, ByVal e As MouseEventArgs) _
                      Handles picBox.MouseClick
  Using bmp As New Bitmap(picBox.ClientSize.Width, _
                          picBox.ClientSize.Height)
    picBox.DrawToBitmap(bmp, picBox.ClientRectangle)
    MessageBox.Show(bmp.GetPixel(e.X, e.Y).ToString())
  End Using
End Sub