private static Image GetDIBImage(MemoryStream ms)
{
byte[] dib = ms.ToArray();
BITMAPINFOHEADER infoHeader = Helpers.ByteArrayToStructure <BITMAPINFOHEADER>(dib);
IntPtr gcHandle = IntPtr.Zero;
try
{
GCHandle handle = GCHandle.Alloc(dib, GCHandleType.Pinned);
gcHandle = GCHandle.ToIntPtr(handle);
if (infoHeader.biSizeImage == 0)
{
infoHeader.biSizeImage = (uint)(infoHeader.biWidth * infoHeader.biHeight * (infoHeader.biBitCount >> 3));
}
using (Bitmap bmp = new Bitmap(infoHeader.biWidth, infoHeader.biHeight, -(int)(infoHeader.biSizeImage / infoHeader.biHeight),
infoHeader.biBitCount == 32 ? PixelFormat.Format32bppArgb : PixelFormat.Format24bppRgb,
new IntPtr((long)handle.AddrOfPinnedObject() + infoHeader.OffsetToPixels + ((infoHeader.biHeight - 1) * (int)(infoHeader.biSizeImage / infoHeader.biHeight)))))
{
return(new Bitmap(bmp));
}
}
finally
{
if (gcHandle != IntPtr.Zero)
{
GCHandle.FromIntPtr(gcHandle).Free();
}
}
}