Visual C++ :: Grab Special Lines From A File

Nov 28, 2012

I have a file that contain different content, some lines inside that file looks like that :

Time : xx:xx:xx
Time : xx:xx:xx

So, I want to grab lines that start with "Time : " and put them inside a list<string> for later use. I am using windows so I don't know if the newline character is '
' or '
' also I don't want my grabed line contain any special character.

I have this code, but didn't work well because some special characters remain inside the string.

Code:

string buf;
list<string> ls;
ifstream read("test.txt", ios_base::binary);
while(!read.eof())
{
getline(read,buf,'

[Code]...

View 1 Replies


ADVERTISEMENT

Visual C++ :: Grab Screen(s) And Invert Their Brightness

Jan 15, 2014

I have a visual impairment that makes it very hard for me to use the standard dark text on white background themes. I use High Contrast but many apps don't query the system for colors (I.E. aren't theme-aware) and consequently display pale or dark text on a white background regarding of the theme selected.

There is a product called ZoomText that allows for inverting the brightness of everything being displayed. I just use a normal theme, let all apps display naturally, and then invert the entire screens brightness.

But ZoomText doesn't support multiple monitors. And it does a lot more than I need. And it hogs the CPU. And it costs a lot.

Looking for some of the APIs that I need to capture the bitmaps for all monitors, invert the brightness of all pixels, and refresh the display contexts. And make that happen so smoothly that it appears like there is nothing going on behind the scenes. (DirectX, OpenGL, ???)

View 4 Replies View Related

C# :: Detecting CD-ROM Drive And Grab Filepath Of Only CSV File

Jul 8, 2014

I 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.

View 14 Replies View Related

C++ :: Getting A File From Designated Location / Grab Value And Make Calculations

Oct 30, 2013

My project is to get a file from a designated location in my computer and not just read, but grab the values from the user and make a count, sum, and average calculation of the numbers in my code. I am using the fstream library and I am trying I did do it, I got the values and calcualated them, however I want the values to be accessed from maybe my desktop or my drive, I want to know how to manipulate my code to get a path like C:UserDesktop and maybe executed from the path input or given. I dont know if this is possible, or easy to do. ALso I did copy some of this code from my teachers examples and I dont know exatly why the variables have to be initilized at zero, and I would like to know a little more on the Bitwise right shift breaker used in line 20 something.

Here is my code below.

#include <iostream>//For avergae functionality
#include <fstream>//For the file commands, such as ifstream and the Bitwise right breakers(<< and >>).
#include <iomanip> // To control the amount of decimals in my results desired.
using namespace std;
int main () {
int aNumber=0; //Initilized at zero because of Stack Overflow:

[Code] .....

View 2 Replies View Related

Visual C++ :: Find Specific String Of Lines In A Text File

Oct 15, 2013

I am trying to print a specific line from a textfile

e.g
I have a text file called info.txt and inside it contains the id,item name, price, quantity

Code:
1,shirt,100,10
2,pants,50,9
3,pen,20,8

I know how to find a specific word at the line in the file but how do I find and print out the specific line e.g(print out just the entire contents of line 2)?

Code:
string temDescription;
ofstream fout;
int curLine = 0;

[Code].....

View 1 Replies View Related

Visual C++ :: PrintDlg With Special Page Range

Mar 24, 2014

In my app the user can select the pages to print by typing in a start and an end page. I think this is the standard dialog.

How can I give the user the possibility to select e.g. page "1,2,6-9" like in Word?

View 4 Replies View Related

Visual C++ :: Looping Lines And Blocks Of Characters

Mar 17, 2013

I have a file that is like the following, with patterns of pipes in it:

Code:
||| || | |
| ||| | | |
|| || ||

I have to consider each row of pipe characters to be in blocks of 3 characters each (e.g. - positions 1-3, then 4-6, etc, etc...) but I have to capture all of the pipes, in sequence, like so:

positions 1-3 for lines 1-3, then positions 4-6 for lines 1-3, etc, etc...

How to get this done besides writing severely redundant control structures like loops, one after the other?

View 5 Replies View Related

Visual C++ :: CArchive Load Gives Null Lines

Aug 1, 2013

I am trying to reuse some code from my Visual C++ 2005. I am using CArchive to ReadString the first line of a file into another string. However, I am seeing squares where there should be spaces when I view it in the debugger.

Here's the code:

if( cfSAP.GetStatus(csRegExtractFileRemote, cfsStatus)) {
if( !cfSAP.Open( csRegExtractFileRemote, CFile::modeRead, &ef ) ) {
cout<<"FAILED
"<<endl;
ef.ReportError();

[Code] ....

I am not able to read the lines due to this bug ,

This is normal text file contains two lines of information like this

0234568374C186-M-233545 SHAFT MATNUMBER1
0234564565C153-C-349578 BRACKET MATNUMBER2

View 4 Replies View Related

C :: Reading From A File And Skipping Lines To Find String In File

Nov 26, 2013

Program background: Ticket Sales Details You will sell tickets in advance and at the door. Prices for buying in advance and at the door will be given. Also, the total number of tickets sold in advance will be given. Each guest will have a unique number. If there are n tickets sold in advance, then these guests will be numbered 0 through n-1. As the event starts, requests to buy tickets at the door may be made and these guests will be numbered sequentially, starting at the lowest unassigned number. The maximum number of guests will be 1000. The first line of the file contains the following three values, separated by spaces: Cost of the presales tickets (in dollars), Cost of the tickets at the door (in dollars), and the number of presale tickets. The first two values will be positive real numbers to two decimal places and the last will be a positive integer.

The second line of the file will contain one positive integer representing the number of auction items followed by a positive real value to two decimal places (at most) representing the minimum bid increment, in dollars. The first value is guaranteed to be 1000 or less and the second will be in between 1 and 50, inclusive.

The third line of the file will contain all the prices of the auction items, in dollars, separated by spaces, in order. Thus, the first price is the price of item 0, the next price is the price of item 1, and so on. These values will be real numbers represented to up to 2 decimal places.

The fourth line of the file will contain the three following positive integers pertaining to the raffle: the number of raffle tickets available, the cost of a raffle ticket in dollars, and the number of raffle prizes. (It's strange to have raffle tickets that don't cost a whole number of dollars.)

The fifth line of the file will contain each of the values of the raffle items, in dollars, separated by spaces, in order. Thus, the first price is the price if item 0, the next price is the price of item 1, and so on. These values will be real numbers with upto 2 decimal places.

The sixth line of the file will contain ten positive integers representing the number of each of the drinks 0 through 9, in order, that are in stock.

The seventh line of the file will contain ten positive real numbers with upto 2 decimal places representing the price of each of the drinks 0 through 9, in order.

The eighth line of the file will contain a single positive integer, numEvents, representing the number of events that occur at the charity ball. These events are split into two groups: actions by guests at the ball and awards given (raffle, auction, person, totalrevenue). All of the actions precede all of the awards. You will produce exactly one line of output for each event described. Here are the formats of each event that could occur:

If a patron buys a ticket at the door, a command will be on a line by itself:

BUY TICKET k

where k is a positive integer indicating the number of tickets bought at the door. These guests will be numbered as previously mentioned. You are guaranteed that the total number of tickets bought, including presales, will not exceed 1000. This is what I have so far and I cannot figure out why it wont calculate the total revenue. I am not completely sure if it is even accessing the if statement in main.

Code:

#include <stdio.h> #include <stdlib.h>
#include <string.h>
#define N 1000

[Code].....

View 4 Replies View Related

Visual C++ :: Draw Multiple Lines And Move Them On Screen

Jul 28, 2013

I am writing a pure C based win32 applications. I have drawn line. Now i want to translate that line, move the line whereved user wants to move on screen. Then again I drawn another line, I am drawing multiple lines.

I have created rectangle region for each line and trying to move the line.

When I move the 2nd line over the 1st line on screen the 1st line is getting wiped out. Because I am InvalidateRect() of the rect for the line being moved, so when that rectangle is crossing the other line then the other line is getting removed from the screen.

How can I rectify it. How can I have all the lined being on the screen and moved according to the user's wish. The code should be pure C and win32 no MFC.

View 4 Replies View Related

Visual C++ :: Program Shouldn't Count Comments And Blank Lines

Feb 7, 2015

I'm making some progress. My program does compile and output the number of line per code, but it shouldn't count comments and blank lines. I tried using (s.substr(0,2) == "//") as suggested but it didn't work.

This is my improved code:

Code:
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
const int A = 3;
int main() {
string s;

[code].....

View 1 Replies View Related

Visual C++ :: Drawing (radius Sized) Lines From Center To Boundary Of Circle

Feb 3, 2014

I am facing a programming logic problem. I want to draw radius sized lines from centre of circle to the circle boundary.

My code is:

int x1, y1, x2, y2, i, r, old_xc,old_yc, x,y;
int xc, yc;
x1=170;
y1=300;
x2=70;
y2=400;
pDC->Ellipse(x1,y1,x2,y2);

[Code] .....

The lines are touching the circle boudary at only start while the rest of lines are smaller and the shape is a triangle instead of a pie slice.

View 8 Replies View Related

C :: Erase From TXT File Lines That Contain One Name?

Feb 4, 2013

Well, I have a .txt file that contains, together with a few characters, columns of values that I want to save in different files like is written in the program (file 1, file2, file3 - a with x, b with y, c with z). BUT, I don't want the values from the lines with the saying "interpolated_vector" to be printed in any of the three files.

What I have is the code below, that has the code that creates the three new files with the columns of values that I want. It is working fine!

Code:

#include <malloc.h>
#include <stdio.h>
#include <stdlib.h>
int i, count;
double *a, *b, *c;
double *x, *y, *z;
char tag[5][255];

[Code]...

I've tried and tried, but couldn't make it work properly. I could only erase one line with "interpolated_vector" using fgets, but all the other lines below this were printed into the three new files (file1, file2, file3).

View 5 Replies View Related

C++ :: Counting Lines From A File

Apr 23, 2013

How I would go about counting lines from a file at the same time as extracting words? I need to know the line number to output what line the word is misspelled on. I tried getline and using sstreams but I could not get it to work.

void SpellCheck::checkValidWords(const string& inFileName) {
string eachword;
ifstream istream;
istream.open( inFileName.c_str() );
if ( !istream.is_open() ) {

[Code] .....

View 3 Replies View Related

C++ :: Reading From Specified Lines In File?

Jul 13, 2013

i want to read text between two indices in the file using file i/o operations in c++. HOw can i do it? for example, here is the text file:

1:
..
..
2:
..
..
3:
..
..
4:

in this text file i need to print only the lines between 2: and 3:. How could this be done?

View 1 Replies View Related

C++ :: Read Only Certain Lines From CSV File

Oct 21, 2014

I am trying to read lines from a CSV file and put the values into vectors. The CSV contains a large amount of data and I would like the program to only read certain lines from the CSV into the vectors. An example of the data is below. In my code the user inputs a secid. I would then like the code to only read lines from the csv where the secid matches what the user inputs. The secid's are also not in order so I can't just use a while loop.

My current code is below the data.

secideffect_datecusip ticker
10131014MAY19972313510 AMZN
10131008MAY19982313510 AMZN
10131028NOV20002313510 AMZN
10131023JUL20012313510 AMZN
10196601JAN199663858510 NB
10196601OCT199806605F10 BAC

ifstream infile3("filepath.csv");
if (!infile3) {
cerr << "Couldn't open file!"<<endl;
return 1;

[Code] .....

View 1 Replies View Related

C++ :: Read Certain Lines From A File?

Aug 22, 2014

I want to read certain lines from a file. Let say if the line contains word "makes", the line will be loaded on the screen.how to modify this code.

// reading a text file
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main () {
string line;

[Code] ....

View 1 Replies View Related

C/C++ :: Deleting Certain Lines In Txt File?

Dec 27, 2013

I was assigned to modify Game Lobby code. All the data can be saved in txt file and can be displayed when running the code..How can i remove or delete the certain lines of a txt file when running the cmd?.. I cant program it to be able to delete certain lines but i manage to program to delete the entire data, which is not what i want..

Here's the code so far...

#include <iostream>
#include <fstream>
#include<vector>
#include<cstdio>
#include<iomanip>
#include <string>
using namespace std;
class Player {
public:
Player(const string& name = ""): m_Name(name), m_pNext(0) {}

[Code] ....

View 3 Replies View Related

C :: How To Count Lines In Dat File Using Fscanf

Sep 15, 2013

I need a way to count lines in a .dat file using fscanf. I must use a regex to check that the characters in the file are alphanumeric. In essence I need to count the ' ' character. I know fscanf ignores this character. I need to exit if it detects anything other than alphanumeric with the digit that is "problem" along with the line number. My .dat file is:

Code:
howard jim dave
joe
(
Maggie My fileCheck.c is: Code: #include "main.h"
int fileCheck(FILE *fp)
{
int ret_val;
int line_count = 0;
char file[BUFF];

[Code]...

The output I am getting is:

Code:
file opened Digit: ( is not an alphanumeric character on line: 5 Program will exit! File closed As you can see, the character "(" is not on the 5th line but the 3rd. It is the 5th "string."

I also wanted to show the regex I am using.

Code:
#define to_find "^[a-zA-Z0-9]+$"

How this can be accomplished?

View 5 Replies View Related

C :: Counting Number Of Lines In A File

Feb 2, 2015

it looks like a popular method for determining the total lines in a file is to read the entire file character by character in search of ' '. I have a file with 5 lines, but for some reason this code isn't finding any instances of ' '. Is this possible? Is there a better way to get the number of lines in a file?

The file looks like this:

Code:
NAME: John
FRIEND 1: Steve
FRIEND 2: Andrea
FRIEND 3: Ken
OCCUPATION: Programmer

Code:
FILE *f = fopen(currentFile, "r");
if (f == NULL) perror ("Error opening file.
");
int ch, lines = 0;
while(!feof(f)){

[Code] .....

View 2 Replies View Related

C++ :: Reading Lines From Text File

Jun 3, 2014

I am trying to read lines from a .txt file like this:

// "file.txt"
This is the first line.
This is the second line.

To do this, I tried using the following code:

int main() {
std::ifstream data;
data.open("file.txt");

[Code] ....

The output I want is:

This is the first line.
This is the second line.

However, all I am getting is:

This is the first line.

I can't quite see why this isn't working. I am decently familiar with file streams in C++, so I thought I would know what I was doing, but apparently not.

View 1 Replies View Related

C++ ::  Loading File With Multiple Lines

May 17, 2014

I'm trying to load a file that look like this:

IP:123.123.123.123
Port:12345

I can't figure out how to load multiple lines. I tried using , but I can't get it to work. Is there a better way of doing it than I am right now? This is my code.

char message[100];
int messageCount = 0;
for(unsigned int i = 0; i < file.size(); ++i) {
message[i] = file[i];

[Code] ....

View 1 Replies View Related

C++ :: Attempting To Get Data From Lines In A File?

Mar 30, 2014

For a project we are given a file with a couple of thousand lines of values, each line having 9 different numbers.

I want to create a for/while loop that, for each loop, stores the 8th and 9th integer of a line as a variable so that I can do some calculations with them. The loop would then move onto the next line, store the 8th and 9th numbers of that line as the same variable, so that I can do the same calculation to it, ending when I've run out of lines.

My problem is less to do with reading the file, I'm just confused how I'd tell it to take only the 8th and 9th value from each line.

View 5 Replies View Related

C++ :: Read And Rewrite Lines In File

Jan 2, 2015

My task is to write a function for borrowing books form library called borrow(name,surname, student_id, book_id), which will connect information of borrowed book's ID and student's information in the file.

File looks like this:

John Jackson 45 0
Michael Gregory 34 56
Ann Cawitch 23 0
Chris Lamb 34 50
...

First two words are name and surname of students. First number represents student's ID and second one represents ID of book. If ID of book is 0, it means that student hasn't borrowed book yet, so he can borrow some book. If ID of book is not 0, it means that student can't borrow a book until he returns the old one. So, when student borrows book, ID of book in file should change from zero to some number

This is my code:

void borrow(string name, string surname, int student_id,int book_id ) {
string a;
string b;
int c=0;
int d;
fstream f2;
f2.open("students.txt", ios::out |ios::in);

[Code] ....

Whenever I call function (for example borrow(John, Jackson,45,15)), I get answer "Student isn't sign up library."

Am I on a right path? How to make this code to work?

View 4 Replies View Related

C++ :: Reading Lines From A File Into Array?

Sep 1, 2014

The first part of the exercise is to read the lines from a file placing each line into an array. I thought my code looked correct however nothing but garbage prints out. Here's my code.

#include <iostream>
#include <fstream>
#include <string>

[Code]...

View 2 Replies View Related

C/C++ :: Writing Repeated Lines To A File?

Aug 26, 2014

I am working on a problem for the CS50 online course through the Harvard web site. I am trying to re-size a bmp image. They gave us a small program that copies a bmp image and we are to modify it to re-size the image. Here is the page [URL]..... Any way I am trying to move the file position indicator backwards so I can read the same line from the input file. So I can resize the file vertically I have the image resized horizontally but it keeps over writing the same lines vertically.

/**
* bmp.h
*
* Computer Science 50
* Problem Set 5

[Code]...

View 4 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved