bytearray

问题 Consider following structure where the length of both username and password is 17: struct LoginPacket { public int unk1; public string username; public string password; } Also this byte array 00 00 00 00 6A 6D 32 6D 65 00 72 00 7A 76 72 00 98 FD 18 00 A0 68 65 72 65 49 73 70 61 73 73 00 00 00 00 00 FF FF 31 2E 30 30 2E 30 30 00 00 00 C7 9D 72 00 04 00 00 31 2E 31 30 2E 32 37 00 0C 2C F6 24 16 2C F6 24 16 Is it possible to load this byte array into the above structure? There is something

问题 I am trying to convert an image(png,jpg,tiff,gif) to a File on disk.When I view it after storing it on file, I cannot see the file. Here is some code I have tried based on other forum discussions: byte[] inFileName = org.apache.commons.io.FileUtils.readFileToByteArray(new File("c:/test1.png")); InputStream inputStream = new ByteArrayInputStream(inFilename); ..String fileName="test.png"; Writer writer = new FileWriter(fileName); IOUtils.copy(inputStream, writer,"ISO-8859-1"); This creates a

问题 I have a .dll(not my own) that has a delegate. This delegate Callback function is: "CallBackFN(ushort opCOde, IntPtr payload , uint size, uint localIP)" How can i convert IntPtr to Byte[]? I think that payload is actually Byte[]. If it's not Byte[] and it's something else would i lose some data? 回答1: Have you looked into Marshal.Copy? http://msdn.microsoft.com/en-us/library/system.runtime.interopservices.marshal.copy.aspx 回答2: If it's a byte[] array: byte[] managedArray = new byte[size];

问题 am trying to convert a grayscale image to a byte array. I use the following code. however, the byte array generated is not of the logical size. ImageConverter converter = new ImageConverter(); byte[] test = (byte[])converter.ConvertTo(gpuMatch.Bitmap,typeof(byte[])); the image is a grayscale 792x410 8 bit depth. so should'nt the array size be 324720 bytes? i am getting something close to 140122 elements in the byte array. ImageConverter ic = new ImageConverter(); Image img = (Image)ic

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I am having a hard time converting this ActionScript code to C#. I don't understand how I can mimic what ByteArray() is doing in C#. If anyone could help me recreate this functionality I would really appreciate it. ActionScript ( seed is a uint.): //Start by reversing the byte order of the seed var ba:ByteArray

问题 I'm writing a Dart library in which I'm very regularly dealing with byte arrays or byte strings. Since Dart doesn't have a byte type nor an array type, I'm using List for all byte arrays. Is this a good practice to do? I only recently found out about the existence of Uint8List in the dart:typed_data package. It's clear that this class aims to by the go-to implementation for byte arrays. But does it have any direct advantages? I can imagine that it does always perform checks on new items so

问题 I got byte array from UIImage by next code.. context = CGBitmapContextCreate( (void*) pixelData, inImage.size.width, inImage.size.height, RGBA_8_BIT, bytesPerRow, colorSpace, kCGImageAlphaPremultipliedLast ); // Make sure we have our context if ( ! context ) { free( pixelData ); NSLog( @"Context not created!" ); } // Draw the image to the bitmap context. // The memory allocated for the context for rendering will then contain the raw image pixelData in the specified color space. CGRect rect =

问题 I am init Document object like this: DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder docBuilder = docFactory.newDocumentBuilder(); Document doc = docBuilder.newDocument(); After that I am building an XML file by inserting data to the doc object. Finally I am writing the contents to a file on my computer. My question is how to write the contents of doc in to a byte[] ?* This is how i write the content to the XML file: TransformerFactory

问题 I am init Document object like this: DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder docBuilder = docFactory.newDocumentBuilder(); Document doc = docBuilder.newDocument(); After that I am building an XML file by inserting data to the doc object. Finally I am writing the contents to a file on my computer. My question is how to write the contents of doc in to a byte[] ?* This is how i write the content to the XML file: TransformerFactory

问题 How do I read a raw byte array from any file... Dim bytes() as Byte ..and then write that byte array back into a new file? I need it as a byte array to do some processing in between. I'm currently using: To read Dim fInfo As New FileInfo(dataPath) Dim numBytes As Long = fInfo.Length Dim fsAs New FileStream(dataPath, FileMode.Open, FileAccess.Read) Dim br As New BinaryReader(fs) Dim bytes As Byte() = br.ReadBytes(CInt(numBytes)) br.Close() fs.Close() To write Dim fs As System.IO.FileStream fs