增加一个函数
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Bin/SunnyUI.dll
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Bin/SunnyUI.dll
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Bin/SunnyUI.pdb
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Bin/SunnyUI.pdb
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@ -567,5 +567,48 @@ namespace Sunny.UI
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return rotatedBmp;
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}
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/// <summary>
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/// 转换Image为Icon
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/// https://www.cnblogs.com/ahdung/p/ConvertToIcon.html
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/// </summary>
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/// <param name="image">图片</param>
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/// <returns></returns>
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public static Icon ToIcon(this Image image)
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{
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if (image == null)
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{
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return null;
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}
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using (MemoryStream msImg = new MemoryStream(), msIco = new MemoryStream())
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{
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image.Save(msImg, ImageFormat.Png);
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using (var bin = new BinaryWriter(msIco))
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{
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//写图标头部
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bin.Write((short)0); //0-1保留
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bin.Write((short)1); //2-3文件类型。1=图标, 2=光标
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bin.Write((short)1); //4-5图像数量(图标可以包含多个图像)
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bin.Write((byte)image.Width); //6图标宽度
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bin.Write((byte)image.Height); //7图标高度
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bin.Write((byte)0); //8颜色数(若像素位深>=8,填0。这是显然的,达到8bpp的颜色数最少是256,byte不够表示)
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bin.Write((byte)0); //9保留。必须为0
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bin.Write((short)0); //10-11调色板
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bin.Write((short)32); //12-13位深
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bin.Write((int)msImg.Length); //14-17位图数据大小
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bin.Write(22); //18-21位图数据起始字节
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//写图像数据
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bin.Write(msImg.ToArray());
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bin.Flush();
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bin.Seek(0, SeekOrigin.Begin);
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return new Icon(msIco);
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}
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}
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}
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}
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}
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