I am trying to write a to a specific sector in a flash drive. The problem is that it will only allow me to write to sectors 0 to 15. When I try sector 16 or higher nothing happens, but in sector 0 to 15 is is working fine.
#define BUFFER_SIZE 512
int main(void) {
FILE *volume;
int k = 0;
long long sector = 0;
char buf[BUFFER_SIZE] = {0};
[Code] .....
I want to access sata hard drive(eg. D drive) at sector level using C programming.I want to read the values stored in the memory locations.
View 3 Replies View RelatedI have written some code to make two partitions in USB flash drive. When I ran it I am not able to make partitions on usb. What'll be the problem in this code.
Code:
/-------------------INITIALIZE AND PARTITION-------------------------------//
#include "stdafx.h"
#include <Windows.h>
#include <stdio.h>
[Code].....
I want to read a file from my flash drive called text.csv. However, I cannot even open the port where my flash drive is connected. This is the code that I am using, but I get error since the first part. When I run the program it says "fopen Error". I am using Ubuntu 12.04.
#include<stdio.h>
#include<string.h>
#define SIZE 1
#define NUMELEM 5
int main(void) {
FILE* fd = NULL;
[Code] ....
I want to replace what is in a specific sector with value inside a buffer(dummy value). This code will read what is inside a specific sector. To make sure it works it display what is inside the sector and it displays the chosen dummy value. (the two cout's in main)
What I want to do is to replace the dummy value with what is inside the specific sector. So if the dummy value is '0', I want to replace what is in sector 285 with '0'.
#include <windows.h>
#include <stdio.h>
#include <iostream>
#include <iomanip>
using namespace std;
#define FILE_SHARE_VALID_FLAGS 0x00000007
#define BUFFER_SIZE 512
[Code] ....
I can access a physical device to read a specific sector in a USB hard drive. But my question is how can I Write to a specific sector? Lets say I want to replace what is in a specific sector of a hard drive with a new data.
View 6 Replies View Relatedthere's a way to get a path to the recycle bin folder for a specific drive for the current user?
Say, on the input one provides "C:" and on the output you get "C:$Recycle.BinS-1-5-18"
How do I make a specific character show up a specific amount of times?
Like I am generating a random number then I need to make "|" show up that many times on the screen.
I'm currently involved in an embedded (cortex M3) C++ project where we're about to run out of flash.
A quick check of the map file give that, in our case, the destructors consume about 10-15% of the available space. Since we're allocating all things that are needed at startup but never delete anything (both a requirement & also impossible due to the lack of a proper memory manager) the thought of getting rid of all destructors in the target build is appealing.
I know that this question is somewhat crazy/desperate but is there a safe way of telling gcc not to emit any code for destructors? If so, can that be made in such a way that a linker error catch for instance mistakes such as creating an object on stack?
I have to simulate flash memory using C++ for a project.
View 2 Replies View RelatedI have a flash movie that is bigger than the axShockwaveFlash placeholder that plays it. The axShockwaveFlash placeholder expands to the size of the movie.
I have found a website at [URL] but asp is totaly different from c#.
How can I make the movie shrink to fit in the axShockwaveFlash placeholder?
My specific request is for retrieving values that are stored to a CompactFlash card. I am able to store values (we call them recipes) to the CompactFlash card as .csv file. I just haven't been able to figure out the code to retrieve this information back to the touchscreen.
Code:
// Create a new folder if it doesn't exist
CreateDirectory("/recipes");
//Create the file if it doesn't exist
CreateFile("/recipes/recipe.csv");
//open the file
hfile = OpenFile("/recipes/recipe.csv", 2);
[Code]....
Now with that said, I would like to retrieve these values from the .csv file.
I'm making a flash card type console application using visual studios 2013. The flash cards contain character that I can display using unicode. So far I am looking at about 200 characters across 2 unicode blocks which I don't want to hard code into my arrays. I thought of initializing my arrays using a loop. The only problem is I don't know how to add in hexadecimal. So is there a way to initialize my array without having to input 200 values my self? Also is hexadecimal addition possible without me having to write a function for it?
View 3 Replies View RelatedI want some simple code which will return only the DriveInfo from one drive. I have the below code but it isn't displaying what I expect it to display, I have a feeling i'm using Linq wrong!
var dname = from n in System.IO.DriveInfo.GetDrives() where n.Name == "F" select n.VolumeLabel;
richTextBox2.AppendText(dname.ToString() + "
");
The above should return the devices VolumeLabel which is in port F.
Instead I get the following:
System.Linq.Enumerable+WhereSelectArrayIterator`2[System.IO.DriveInfo,System.String]
using C++ how can i check the presence of a folder in a drive.
The path of the folder is available in a std::string like std::string path = "C:TestFolder";
I would like to be able to safely eject a USB drive (in Windows) when user selects that drive in a listbox and clicks the Eject button in an MFC dialog app. Any functions or (link) that would be up to date (i.e. compatible with Windows 8)?
View 1 Replies View RelatedI would like the user to insert a CD into their computer and click on an button on my application that allows them to read the CD-ROM and find a specific file type, e.g. csv, and then grab the info in the csv file.
I already have my StreamReader setup grabbing a filepath.
Now I am just wondering...how do I detect the CD-ROM and how do I grab the filepath of the only CSV file on the CD-ROM?
What's behind detecting a CD-ROM and grabbing a specific file type from a CD-ROM?
I heard about DriveInfo
However, that only allows me to detect a drive but not look at it's contents.
I am trying to save the excel file in D:/newfolder. but the file saving as newfolderFilename. The newfolder is already created in D drive. File save path i am getting from textbox ....
View 14 Replies View RelatedCurrently I'm trying to do something extremely basic: delete or move a file
I have a mapped network drive (Y) where I have a file I need to move from one folder to another
First was doing the obvious:
System.IO.File.Move("Y:TempFile.txt", "Y:Temp2File.txt");
Not much to go wrong here, right? As long as I have the correct permission to write in the folders and the folders exists, this would normally go smooth. But for some reason it only copies the file. The source file still exists, but it has successfully copied the file to the destination folder. No exceptions has been thrown or anything... but the file still exists in the source directory
I then changed the code to the following:
System.IO.File.Copy("Y:TempFile.txt", "Y:Temp2File.txt");
System.IO.File.Delete("Y:TempFile.txt");
Console.WriteLine("See mommy, no Exceptions");
As expected the file copies correctly, but the delete command is completely ignored. The file is not deleted, but the Console.WriteLine command is called
I'm running the application as the logged in user. The user has permission to delete the file. If I try from Windows Explorer, the file is correctly deleted. Unfortunately my application refuses to delete the file and even worse, it will not even throw an Exception.
For my purpose all I need to know is drive's BitLocker encryption status by its DOS path. Something like this:
Code:
enum DriveEncryptionStatus{
Unprotected,
Protected,
Unknown
};
DriveEncryptionStatus = GetDriveBitlockerEncryptionStatus(L"C:");
I was able to find the Win32_EncryptableVolume class that unfortunately comes with this caveat:
To use the Win32_EncryptableVolume methods, the following conditions must be met:
You must have administrator privileges.
How to do this without running as an administrator?
I have tried to use File.Copy and File.Move but non of them would work as I expected .....
View 1 Replies View RelatedWrite a program that is able to save a list of items such as books, CDs, or DVDs and the items that are saved must have attributes associated with them. For example a book has a title, author, publisher, and ISBN.I would like to create a program that is able to save the database of items to a file on the hard drive and also retrieve it from the hard drive.I have this for a start of how to set up a storing program.
#include <iostream>
#include <iomanip>
using namespace std;
int main () {
const int arraySize = 10;
int a[arraySize] = { 2, 6, 4, 10, 12, 89, 68, 45, 37 };
int i, hold;
[code]....
I am creating small application using c#.net.I removed all image tag using regular expression no I want to remove all video file and flash file also in source code of webpage.
so far I have tried this ...
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
[Code] .....
so I wrote this code in class today and I'm almost done but I need to come up with some sort of equation to add up all the total values. The problem is I am reading data off a txt file so it's all being read as one thing. I don't know how to get each specific value and add them all together. This is my code so far.
#include <iostream>
#include <iomanip>
#include <string>
#include <fstream>
using namespace std;
[Code] .....
here's what's inside the input file
Chisel 50 9.99
Hammer 30 15.99
Nails 2000 0.99
Bolts 200 2.99
Nuts 300 1.99
Soap 55 1.89
I end up multiplying the amount by the price to get the total value as shown in the code above. Now I just don't know how to add the total value of each item to get the total overall value. Also I haven't used invTotal because I want that to be the overall total.
How do I return a specific value from a function in order for me to cout it in my int main?
In this case i have solved for a value sigma1 in my function but i want to use the value of sigma1 in my int main also and in other places so how would i do that?
#include <iostream>
#include <cmath>
#include <iomanip>
#include <cstdlib>
[Code].....
Basically I am creating a game and I need the ai to look for specific buttons. At the moment this is the code I have, and what it does is it makes the ai look for any random button that has't already been clicked.
Code:
private Button look_for_spaces() {
Console.WriteLine("Looking for spaces");
Button b = null;
foreach (Control c in Controls) {
b = c as Button; // performs a cast
[Code] .....
Now what I'm trying to do is make the ai go through 4 searches in steps instead of looking for any button. I want it first to look for buttons 1, 2 and 3, if there's a space in any then it will be clicked but if all of them are already clicked it will look for spaces in buttons 4, 5 and 6 and so on if that makes sense. But i'm not too sure how I would do it.