C# 如何在WinForms中绘制图像反射？

我想用C#（WinForms）绘制图像的反射，所以我需要能够水平翻转图像。我知道我可以用image.RotateFlip来实现这一点，但这种方法的问题是，我必须翻转图像两次，这样我才能在下一次绘制时再次将其右侧向上绘制。每幅图像每画两次这样做似乎很慢

我想做翻转时，我画的形象，所以我只需要翻转一次，但我找不到任何方法来做这件事。这可能吗

我考虑过的另一种方法是以某种方式翻转图形对象，正常绘制图像，然后翻转图形对象，以便下一次绘制正确。如果这比翻转图像两次要快，可以这样做吗

另外，我不想在内存中保留2个图像，因此无法复制图像并翻转克隆。

编辑

像这样的吗

     draw(new Bitmap (img).rotateflip(param))

好的，rotateflip不会返回图像

，仅从旋转唇翻转一次就足够了。没有

RotateNoneFlipNone  Specifies no rotation and no flipping.
Rotate90FlipNone    Specifies a 90-degree rotation without flipping.
Rotate180FlipNone   Specifies a 180-degree rotation without flipping.
Rotate270FlipNone   Specifies a 270-degree rotation without flipping.
RotateNoneFlipX Specifies no rotation followed by a horizontal flip.
Rotate90FlipX   Specifies a 90-degree rotation followed by a horizontal flip.
Rotate180FlipX  Specifies a 180-degree rotation followed by a horizontal flip.
Rotate270FlipX  Specifies a 270-degree rotation followed by a horizontal flip.
RotateNoneFlipY Specifies no rotation followed by a vertical flip.
Rotate90FlipY   Specifies a 90-degree rotation followed by a vertical flip.
Rotate180FlipY  Specifies a 180-degree rotation followed by a vertical flip.
Rotate270FlipY  Specifies a 270-degree rotation followed by a vertical flip.
RotateNoneFlipXY    Specifies no rotation followed by a horizontal and vertical flip.
Rotate90FlipXY  Specifies a 90-degree rotation followed by a horizontal and vertical flip.
Rotate180FlipXY Specifies a 180-degree rotation followed by a horizontal and vertical flip.
Rotate270FlipXY Specifies a 270-degree rotation followed by a horizontal and vertical flip.

从中获取此代码，并检查是否有帮助

using System;
using System.Drawing;
using System.Windows.Forms;

class ImageReflection: Form
{
     Image image = Image.FromFile("Color.jpg");

     public static void Main()
     {
          Application.Run(new ImageReflection());
     }
     public ImageReflection()
     {
          ResizeRedraw = true;

     }
     protected override void OnPaint(PaintEventArgs pea)
     {
          DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height);
     }     
     protected void DoPage(Graphics grfx, Color clr, int cx, int cy)
     {
          int cxImage = image.Width;
          int cyImage = image.Height;

          grfx.DrawImage(image, cx / 2, cy / 2,  cxImage,  cyImage);
          grfx.DrawImage(image, cx / 2, cy / 2, -cxImage,  cyImage);
          grfx.DrawImage(image, cx / 2, cy / 2,  cxImage, -cyImage);
          grfx.DrawImage(image, cx / 2, cy / 2, -cxImage, -cyImage);
     }
}

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要使用反射绘制图像，我必须（1）将图像向右上绘制，然后（2）翻转图像以绘制反射，然后将其向后翻转，以便下一个绘制步骤（1）将图像向右上绘制。这是因为实际图像实例现在已翻转。这有意义吗？是图像还是位图？对象？它是System.Drawing.Bitmap对象。为什么不在内存中保留两个图像？这似乎是最简单的方法。