将位图图像转换为SourceImage [复制]

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这个问题在这里已有答案：

• How to convert icon (Bitmap) to ImageSource? 2 answers
• 如何将图标（Bitmap）转换为ImageSource？ 2个答案

I'm using some code to show live video from a camera.

我正在使用一些代码来显示来自相机的实时视频。

In Windows Form (C#) the code worked fine, but in WPF application i getting an error in :

在Windows窗体（C＃）中，代码工作正常，但在WPF应用程序中我收到错误：

Bitmap img = (Bitmap)eventArgs.Frame.Clone();
Image.Source = img;

the error was : connot convert System.Drawing.Bitmap to System.Wondows.Media.ImageSource. So i converted the Bitmap image using this code:

错误是：connot将System.Drawing.Bitmap转换为System.Wondows.Media.ImageSource。所以我使用以下代码转换了Bitmap图像：

public ImageSource imageSourceForImageControl(Bitmap BitmapImage)
{
ImageSourceConverter SourceImage = new ImageSourceConverter();
return (ImageSource)SourceImage.ConvertFrom(BitmapImage);
}

Then i got a System.NullReferenceException

然后我得到了一个System.NullReferenceException

Any idea what should i do??

知道我该怎么办？

PS : Im a Newbie with C# applications

PS：我是C＃应用程序的新手

1 个解决方案

#1

I was using this for quite some time, try this.

我用了很长时间，试试这个。

public ImageSource imageSourceForImageControl(Bitmap bitmap)
{
    using(MemoryStream memory = new MemoryStream())
    {
        bitmap.Save(memory, ImageFormat.Png);
        memory.Position = 0;
        BitmapImage bitmapImage = new BitmapImage();
        bitmapImage.BeginInit();
        bitmapImage.StreamSource = memory;
        bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
        bitmapImage.EndInit();
        return (ImageSource)bitmapImage;
    }
}