如何从png图像中获取图标？ [英] How do I get an Icon from a png image?

问题描述

我正在创建一个WPF应用程序，因此我主要使用ImageSource类来处理图标。但是，系统托盘图标必须是 System.Drawing.Icon 类型。是否可以从png图像创建这样的对象？

I'm creating an WPF app, so I'm mostly working with the ImageSource class for icons. However, the system tray icon has to be of type System.Drawing.Icon. Is it possible to create such an object from a png image?

我尝试过以下内容：

private static System.Drawing.Icon _pngIcon;
public static System.Drawing.Icon PngIcon
{
    get
    {
        if (_pngIcon == null)
        {  
            //16x16 png image (24 bit or 32bit color)
            System.Drawing.Bitmap icon = global::BookyPresentation.Properties.Resources.star16;
            MemoryStream iconStream = new MemoryStream();
            icon.Save(iconStream, System.Drawing.Imaging.ImageFormat.Png);
            iconStream.Seek(0, SeekOrigin.Begin);
            _pngIcon = new System.Drawing.Icon(iconStream); //Throws exception
        }
        return _pngIcon;
    }
}

Icon构造函数抛出异常，并显示以下消息： 参数'图片'必须是可以用作图标的图片。

The Icon constructor throws an exception with the following message: "Argument 'picture' must be a picture that can be used as a Icon."

我认为它可能是像我一样的图像颜色的位深度之前的一些问题，但32位和24位图像都不起作用。有可能我正在尝试做什么吗？

I figured it might be something with the bit depth of the image color as I had some issues with this earlier, but both 32bit and 24bit images didn't work. Is it possible what I'm trying to do?

推荐答案

我认为你可以在转换图像之前尝试这样的事情。 ico：

I think you can try something like this before convert your image to .ico:

    var bitmap = new Bitmap("Untitled.png"); // or get it from resource
    var iconHandle = bitmap.GetHicon();
    var icon = System.Drawing.Icon.FromHandle(iconHandle);

其中图标将包含你的图标需要。

Where icon will contain the icon which you need.

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