memorystream

It came to me to rework old code which signs PDF files into new one, which signs MemoryStreams (byte arrays) that come and are sent by web services. Simple, right? Well, that was yesterday. Today I just can't get it to work. This is the old code, which uses FileStreams and it works: public static string OldPdfSigner(PdfReader pdfReader, string destination, string password, string reason, string location, string pathToPfx) { using (FileStream pfxFile = new FileStream(pathToPfx, FileMode.Open, FileAccess.Read)) { ... using (PdfStamper st = PdfStamper.CreateSignature(pdfReader, new FileStream

I am converting bytes into an image but I get an error Parameter is not valid I am pasting my code. Kindly check the code and suggested that was I am doing right or wrong. Image arr1 = byteArrayToImage(Bytess); This is the function. public static Image byteArrayToImage(byte[] byteArrayIn) { if (null == byteArrayIn || byteArrayIn.Length == 0) return null; MemoryStream ms = new MemoryStream(byteArrayIn); try { Process currentProcess1 = Process.GetCurrentProcess(); Image returnImage = Image.FromStream(ms); return returnImage; } catch (Exception ex) { MessageBox.Show(ex.Message); } } I applied

I don't understand what I'm doing wrong here. I generate couple of memory streams and in debug-mode I see that they are populated. But when I try to copy MemoryStream to FileStream in order to save the file fileStream is not populated and file is 0bytes long (empty). Here is my code if (file.ContentLength > 0) { var bytes = ImageUploader.FilestreamToBytes(file); // bytes is populated using (var inStream = new MemoryStream(bytes)) // inStream is populated { using (var outStream = new MemoryStream()) { using (var imageFactory = new ImageFactory()) { imageFactory.Load(inStream) .Resize(new Size

I couldn't find anything ready-made, so I came up with: class membuf : public basic_streambuf<char> { public: membuf(char* p, size_t n) { setg(p, p, p + n); setp(p, p + n); } } Usage: char *mybuffer; size_t length; // ... allocate "mybuffer", put data into it, set "length" membuf mb(mybuffer, length); istream reader(&mb); // use "reader" I know of stringstream , but it doesn't seem to be able to work with binary data of given length. Am I inventing my own wheel here? EDIT It must not copy the input data, just create something that will iterate over the data. It must be portable - at least it

I'm having an issue with serializing using memory stream. Here is my code: /// <summary> /// serializes the given object into memory stream /// </summary> /// <param name="objectType">the object to be serialized</param> /// <returns>The serialized object as memory stream</returns> public static MemoryStream SerializeToStream(object objectType) { MemoryStream stream = new MemoryStream(); IFormatter formatter = new BinaryFormatter(); formatter.Serialize(stream, objectType); return stream; } /// <summary> /// deserializes as an object /// </summary> /// <param name="stream">the stream to

I am capturing images from a smart camera imager and receiving the byte array from the camera through socket programming (.NET application is the client, camera is the server). The problem is that i get System.InvalidArgument exception at runtime. private Image byteArrayToImage(byte[] byteArray) { if(byteArray != null) { MemoryStream ms = new MemoryStream(byteArray); return Image.FromStream(ms, false, false); /*last argument is supposed to turn Image data validation off*/ } return null; } I have searched this problem in many forums and tried the suggestions given by many experts but nothing