Image im = byteArrayToImage(imgbyte);
Bitmap bitmap = new Bitmap(width, height);
//创建作图区域
Graphics graphic = Graphics.FromImage(bitmap);
graphic.DrawImage(im, 0, 0, new Rectangle(x, y, width, height), GraphicsUnit.Pixel);
//从作图区生成新图
IntPtr pr = bitmap.GetHbitmap();
Image MyImage = Image.FromHbitmap(pr);
DeleteObject(pr);
byte[] tmpbyte = imageToByteArray(MyImage);
Image newimage = byteArrayToImage(tmpbyte);
byteslen += tmpbyte.Length;
x = x + width;
newimage .Save("C:\\newfilepath\\im.jpg", ImageFormat.Jpeg); //GDI一般性错误
MyImage.Dispose();
如果是： MyImage.Save("C:\\newfilepath\\im.jpg", ImageFormat.Jpeg);//这个没有问题。
/// <summary>
/// byte[]数组转换为 Image
/// </summary>
/// <param name="byteArrayIn"></param>
/// <returns></returns>
public static System.Drawing.Image byteArrayToImage(byte[] byteArrayIn)
{
using (System.IO.MemoryStream ms = new System.IO.MemoryStream(byteArrayIn))
{
System.Drawing.Image im= System.Drawing.Image.FromStream(ms);
return im;
}
}
/// <summary>
/// Image 转换为 byte[]数组
/// </summary>
/// <param name="imageIn"></param>
/// <returns></returns>
public static byte[] imageToByteArray(System.Drawing.Image imageIn)
{
using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
{
imageIn.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
return ms.ToArray();
}
}
