To flip a image in C# and VB.NET you can use the following snippet.

Sample C#

public enum FlipMode
{
	Horizontal = 0,
	Vertical = 1,
	Both = 2
}

public Image FlipImage(Image myImage, FlipMode myFlipmode)
{
	var ret = myImage;
	switch (myFlipmode)
	{
		case FlipMode.Horizontal:
			ret.RotateFlip(RotateFlipType.RotateNoneFlipX);
			break;
		case FlipMode.Vertical:
			ret.RotateFlip(RotateFlipType.RotateNoneFlipY);
			break;
		case FlipMode.Both:
			ret.RotateFlip(RotateFlipType.RotateNoneFlipXY);
			break;
	}
	return ret;
}

Sample Vb.NET

Public Enum FlipMode
	Horizontal = 0
	Vertical = 1
	Both = 2
End Enum

Public Function FlipImage(myImage As Image, myFlipmode As FlipMode) As Image
	Dim ret = myImage
	Select Case myFlipmode
		Case FlipMode.Horizontal
			ret.RotateFlip(RotateFlipType.RotateNoneFlipX)
			Exit Select
		Case FlipMode.Vertical
			ret.RotateFlip(RotateFlipType.RotateNoneFlipY)
			Exit Select
		Case FlipMode.Both
			ret.RotateFlip(RotateFlipType.RotateNoneFlipXY)
			Exit Select
	End Select
	Return ret
End Function

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