应用RotateFlip时，System.Drawing.Imaging.Metafile始终抛出System.NotImplementedException [英] System.Drawing.Imaging.Metafile always throws System.NotImplementedException on applying RotateFlip

问题描述

你好团队，

我在我的项目中使用System.Drawing.Imaging.Metafile。我尝试使用与下面的代码片段相同的RotateFlip选项旋转相同的内容。

 Metafile.RotateFlip（RotateFlipType.Rotate90FlipNone）; 

但它总是抛出System.NotImplementedException，但使用Bitmap时工作正常。这是一个已知问题吗？

请在下面找到堆栈跟踪详细信息。

System.NotImplementedException未处理
>
   HResult = -2147467263

  消息=未实现。
>
  来源= System.Drawing

   StackTrace：

         at System.Drawing.Image.RotateFlip（RotateFlipType rotateFlipType）

         at   ................................. .........................

任何帮助都将受到高度赞赏。

谢谢，

解决方案

Deepak，

对不起我迟到的回复。

>>但它总是抛出System.NotImplementedException

图元文件是一个绘图命令列表，而不是光栅表示，因此旋转翻转不起作用。

所以请将元文件绘制到位图然后旋转：

位图位图; 
 private void Form2_Load（object sender，EventArgs e）
 {
 bitmap =（Bitmap）Bitmap.FromFile（@" C：\ Users \v-baf \ OneDrive \ MyPicture\Sight.jpg"）; 
 pictureBox1.SizeMode = PictureBoxSizeMode.AutoSize; 
 pictureBox1.Image = bitmap; 
} 
 
 private void button1_Click（object sender，EventArgs e）
 {
 bitmap.RotateFlip（RotateFlipType.Rotate90FlipNone）; 
 pictureBox1.Image = bitmap; 
} 

希望有所帮助！

最好的问候，

Stanly

Hi team,

I am using System.Drawing.Imaging.Metafile in my project. i tried to rotate the same using RotateFlip option of the same as in the below code snippet.

Metafile.RotateFlip(RotateFlipType.Rotate90FlipNone);

But it always throw System.NotImplementedException, but the same is working fine while using Bitmap. Is this a known issue?

Please find the stack trace details below.

System.NotImplementedException was unhandled
  HResult=-2147467263
  Message=Not implemented.
  Source=System.Drawing
  StackTrace:
       at System.Drawing.Image.RotateFlip(RotateFlipType rotateFlipType)
       at ..........................................................

Any help would be highly appreciated.

Thanks,

解决方案

Hi Deepak,

Sorry for my late reply.

>>But it always throw System.NotImplementedException

Metafiles are a list of drawing commands, not a raster representation so the rotate flip doesn't work.

So please draw the metafile to a bitmap and then rotate that:

        Bitmap bitmap;
        private void Form2_Load(object sender, EventArgs e)
        {
            bitmap = (Bitmap)Bitmap.FromFile(@"C:\Users\v-baf\OneDrive\MyPicture\Sight.jpg");
            pictureBox1.SizeMode = PictureBoxSizeMode.AutoSize;
            pictureBox1.Image = bitmap;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            bitmap.RotateFlip(RotateFlipType.Rotate90FlipNone);
            pictureBox1.Image = bitmap;
        }

Hope it helps!

Best Regards,

Stanly

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