c# 將圖片轉為二進位

 
using System.IO;
using System.Drawing;

/// <summary>

/// 將 Image 轉換為 Byte 陣列。
/// </summary>

/// <param name="ImgPath">圖片路徑 。</param>           
public byte[] ImageToBuffer(string ImgPath)
{
byte[] _ImageBytes;


if (File.Exists(ImgPath))
{

Image _Image = Image.FromFile(ImgPath);
MemoryStream ms = new MemoryStream();
_Image.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
_ImageBytes = ms.GetBuffer();
ms.Dispose();
_Image.Dispose();
}
else
{
_ImageBytes = null;
}
return _ImageBytes;
}