byte

问题 I have a base64 string which was generated from an image using another application. Now on my application I want to convert the base64 string to byte and display it on a PictureBox. I already found a sample application which takes a byte input and sets a PictureBox image. Unfortunately the sample application gets the byte array from an image and just translates it back. Here's the function it uses. Public Function PictureFromByteStream(b() As Byte) As IPicture Dim LowerBound As Long Dim

问题 I'm writing an app that will store the IP Addresses of where requests are coming from. Those IP Addresses will be stored as a varbinary(16) in my database. Its become apparent that a varbinary(16) is not the proper size. Currently, I'm using the following code to get the IP Address of a request into a byte[]; HttpRequestMessage request = GetRequestMessage(); string ipAddress = string.Empty; if (request.Properties.ContainsKey("MS_HttpContext")) { ipAddress = ((HttpContextWrapper)request

问题 This is what happens when I load my project file into my software. This happens when I convert the 'byte' parameter into image again. Here's my conversion method: public Bitmap ConverToImage(byte[] ImageByteArray) { using (MemoryStream stream = new MemoryStream(ImageByteArray)) { return (Bitmap)Image.FromStream(stream); } } Pushing the byte into an object of the ImageClass var image = new LayerClass { rect = l.rect, image = img.ConverToImage(l.imageByte), type = (LayerClass.Type)System.Enum

问题 I have a .au audio file that I am trying to copy to another audio file, and I want the copied audio file to have half the volume. I have written the following code and it produces the following audio file: for (int i = 24; i < bytes.length; i++) { // bytes is a byte[] array containing every byte in the .au file if (i % 2 == 0) { short byteFrame = (short) (((bytes[i - 0]&0xFF) << 8) | ((bytes[i - 1]&0xFF))); byteFrame >>= 1; bytes[i - 0] = (byte) (byteFrame); bytes[i - 1] = (byte) (byteFrame >

问题 I don't know where is the problem here, i'm trying to output all the character from file to the screen, but somehow it prints only the last one. For example if my test.txt file has a line abc in it, the output shows us only c . How should i use lodsb properly in this situation? Don't mind some unnecessary lines in data section, i just pasted not the all code. Updated code: .model small .stack 100h .data filename db 'test.txt',0 filename1 db 'temp.txt',0 error_open db 'impossible to open this

问题 I'm was trying to convert hexString to Array of Bytes([UInt8]) I searched everywhere but couldn't find a solution. Below is my swift 2 code func stringToBytes(_ string: String) -> [UInt8]? { let chars = Array(string) let length = chars.count if length & 1 != 0 { return nil } var bytes = [UInt8]() bytes.reserveCapacity(length/2) for var i = 0; i < length; i += 2 { if let a = find(hexChars, chars[i]), let b = find(hexChars, chars[i+1]) { bytes.append(UInt8(a << 4) + UInt8(b)) } else { return

问题 I'm working on a project in which we use a radio modem to transmit data (video and telemetry) from an unmanned aerial vehicle to a ground station. What we need to do is display the video in real-time and be able to know which frame corresponds to each chunk of telemetry data in C#. The data is decapsulated to bytes of telemetry and video (mpeg4). As I've got some experience with OpenCV, I'd like to use it to decode, display and grab clicks position from the video. To do so I'm using the

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Size of a byte in memory - Java I read this in an article. I am just pasting as is: The class takes up at least 8 bytes. So, if you say **new Object();** you will allocate 8 bytes on the heap. Each data member takes up 4 bytes, except for long and double which take up 8 bytes. Even if the data member is a byte, it will still take up 4 bytes! In addition, the amount of memory used is increased in 8 byte blocks.

问题 In my application, i need to read the existing pdf and add barcode to the existing PDF and pass it to output stream. here the existing pdf is like template. I am using iText jar for adding barcode. I want to know the possibilities of converting PdfStamper object to byte array or PdfContentByte to byte array. Can anyone help on this? 回答1: Your question is unclear. I assume that you want to write to a ByteArrayOutputStream instead of to a FileOutputStream . There are different examples on how

问题 I have declared an array of bytes: uint8_t memory[123]; which i have filled with: memory[0]=0xFF; memory[1]=0x00; memory[2]=0xFF; memory[3]=0x00; memory[4]=0xFF; And now i get requests from the user for specific bits. For example, i receive a request to send the bits in position 10:35, and i must return those bits combined in bytes. In that case i would need 4 bytes which contain. response[0]=0b11000000; responde[1]=0b00111111; response[2]=0b11000000; response[3]=0b00000011; //padded with