C/C++ :: How To Open TXT File From Program
Jan 7, 2015
I am fairly new to programming and I am writing a small POS system which in the background creates a receipt. I guess the relevant code would be this:
#include <stdio.h>
int main() {
FILE *receipt;
receipt = fopen("receipt.txt", "w");
fprintf(receipt, "Coffee Bar
[Code] ....
Of course the last bit wont be running for you, since the variables are missing. My question now is, that I like to open this file in a text editor. The file should be opened with a command withing the code. Is that possible at all? As you might can tell the receipt should pop up after the program ran and the user should be able to print it afterwards.
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Apr 15, 2013
I am wondering how can i open a .exe file with my c++ program. What is the source code?
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Feb 14, 2015
I am trying to make a program that asks for password when you try to open a file.
I tried with that, obviously without success...
#include <iostream>
#include <fstream>
#include <string>
#include <windows.h>
using namespace std;
int main () {
ifstream file("test.txt");
string password;
[Code] .....
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Jul 13, 2014
I'm using Visual Studio Express 2013 to create a Windows program that will upgrade my micro-controller firmware. I have a .exe program to upgrade it. What I normally do is I drag and drop a .txt file on the .exe program and it will be done. I want to write a program that will do the exact same thing. Where when I click on a button, it will run the .exe program with the .txt file.
What I got so far is just run the .exe program when i press the button. I do not know how to write a code to let the .exe start with the .txt file. Here's what I got so far.
Process.Start(@"C:UsersJayDocumentsVisual Studio 2013ProjectsWindowsFormsApplication1BSL_FilesBSL ScripterBSL_Scripter.exe");
That line only manage to open up my .exe file. How do I make it run with the .txt at this location?
C:UsersJayDesktopBSL_FilesBSLSCRIPT.txt
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May 10, 2013
I have a batch of .pdf files (~1000) with names 001.pdf 002.pdf ...etc. Still pretty new to C, but would it be possible to write a program that would open a PDF, prompt a new name from user, and when entered, close the .pdf and open the next one in the list?
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Oct 22, 2014
I am creating a console based application which needs to be dual tasking, which prompts me to share a single console for the GUI console based and inputs from the user.
I want to know if there is a mechanism through I can open more than one command prompt so that I would use efficiently both of them.
Furthermore, I would need also to know how to control on which to print and on which not to be printed.
Is there such a thing?
I am using Visual Studio 2012 Ultimate on a Windows 8.1 Professional PC.
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Jul 14, 2012
I have a folder "pics" in g: drive. There I want to create some text.txt file. Thus, the final path is "g:pics ext.txt".
How can I do that?
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Mar 23, 2013
I've almost finished a Terminal/Command Prompt Program that can do most of the things a Microsoft or Linux Terminal can do - but I have a problem. I've got it to open programs fine, and I can also open their browser to the download page if they don't have it, but I need my program to know if there isn't the software so a bit like command prompt where it says 'The system cannot find the file test.txt.' and then it'll take them to the website if they like.
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Mar 5, 2014
I don't know how to put this really, but I finished a program in Qt, and i want to know how to make a .exe file for it, so i dont have to open Qt and build the program every time i use it.
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Oct 10, 2013
My program closes after the out even though i've used cin.get():
I want the program to stay open at least until you press enter, even after the whole output.
Code:
#include <iostream>#include <string>
int main()
{
std::cout << "Please enter your name";
std::string name;
std::cin>> name;
// build the message that we intend to write
[Code] .....
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Apr 21, 2013
I'm trying to type out whatever is in the .txt document, but I cannot open it for some reason. My code is
Code:
int main(int argc, char *argv[]) {
char ch=0;FILE *fp;
fp=fopen("C:UsersPCDesktopNew folderQuestion 5one.txt",'r');
while(ch!=EOF){
printf ("%c", ch);
ch=getc(fp);
Sleep (200);}fclose(fp);
return 0;
}
I keep getting an error with my fp=fopen so how do you open the text? Do i have anything else wrong with my code.
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Jan 24, 2013
I'm trying to write a program for a pong game using a tutorial online. Every time i try to run my program its telling me "Cannot find or open pdb file" I have tried running Microsoft visual c++ as administrator and checking the box next to the Microsoft symbol server. I only get a black console screen with a blinking cursor.
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Dec 2, 2013
For homework I need to take a file of numbers (double) and fine their average. But, I seem to be having an issue just opening the file.
#include <iostream>
#include <fstream>
#include <cstdlib>
using namespace std;
void get_average(ifstream& input_file);
// Precondition: Reads all the numbers from input file stream
// Postcondition: Prints out to the screen the average of the numbers
[code]....
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Nov 8, 2013
Reading a .dat file, i'm unable to open the file. This program is for a Air Quality index detector, the AQI machine records the particle concentration every minute and saves it into new data file for each day. So I need to make this program run every minute and convert the concentration in to the AQI readings.
The filename is of the format "ES642_2013-11-09.dat", where ES642 is the software name of the machine, and rest is the year, month and day. The code here is just for the file reading section:
Code:
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
[Code] .....
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Mar 28, 2014
Code:
'test.exe': Loaded 'C:UsersPcDocumentsVisual Studio 2010Projects estDebug est.exe', Symbols loaded.
'test.exe': Loaded 'C:WindowsSysWOW64
tdll.dll', Symbols loaded (source information stripped).
'test.exe': Loaded 'C:WindowsSysWOW64kernel32.dll', Symbols loaded (source information stripped).
[Code]...
The thread 'Win32 Thread' (0x2d0) has exited with code 1 (0x1).
The program '[6040] test.exe: Native' has exited with code 1 (0x1). my code is not wrong but there is an error which ı dont understand ...where is my error?
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Nov 11, 2013
i'm writing a lexer, and i want to use boost::regex for it. im sure im using it right (just in case though)
while(!this->Source.empty())
{
if(regex_search(Start, End, Match, regex(""[^"]*""), Flags))
[code].....
someone told me to download the latest source and build that so i did, by unzipping it, cding to the source, running ./bootstrap.sh, ./b2, and finally ./b2 install. when i compile i get no errors but when i run it i get ./jade: error while loading shared libraries: libboost_regex.so.1.55.0: cannot open shared object file: No such file or directory
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Jan 29, 2014
This my deposit function, i want to open the file (balance), then add the sum and store in on the text file.
float deposit( int x, int currentBalance) {
cout<<"
"<<endl;
cout<<"Welcome to the deposit area"<<endl;
cout << "Your new balance is:" << balance <<endl;
[Code] ....
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Nov 9, 2013
Need reading a .dat file, i'm unable to open the file
This program is for a Air Quality index detector, the AQI machine records the particle concentration every minute and saves it into new data file for each day. So I need to make this program run every minute and convert the concentration in to the AQI readings.
The filename is of the format "ES642_2013-11-09.dat", where ES642 is the software name of the machine, and rest is the year, month and day.
The code here is just for the file reading section:
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main(int argc, const char * argv[]) {
[Code] ....
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Feb 27, 2013
How to open my two files with argv[1] and argv[2] as the parameters . Heres my code:
void computeCalories (const char* nutrientFileName, const char* recipeFileName) {
string file, file2;
ifstream inFile;
cout << "Please enter the nutrient file name
[Code] ....
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Nov 14, 2013
I need to create a text file that looks like:
first line
second line
third line
forth line
fifth line
sixth line
I want to replace the third and forth lines with three new lines. The above contents would become:
first line
second line
new line1
new line2
new line3
fifth line
sixth line
How can I do this using c++?
never was taught file function in c++
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Dec 5, 2014
When I write the Ctor as follows, I get an Error: Invalid Sharing Flag 0 (That happens when file exists or does not exist)
File::File(const string& file)
{
m_file.open(file, std::ios::out, std::ios::app);
}
When I write the Ctor as foolows, I manage to open / create a file.
File::File(const string& file)
{
m_file.open(file);
}
What is wrong with option #1?
note that m_file is a data member of type ofstream
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Oct 16, 2013
my programme showing error 'unable to open inclde file ****' i fallowed the general procedure i.e., options-->directories--> ( inclde proper path) still not working..
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Oct 7, 2013
I am trying to open a excel file using ole automation, passin with char * the name.
Code:
void ExcelOpen(char * FileOpenName){
...
{
VARIANT result;
VariantInit(&result);
[Code] ....
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Jan 11, 2013
I'm trying to open a file and perform a regex on it, then print the matches, but I'm not sure if I have it right. I think I need to remove the line -
Code:
[for ( std::vector<TCHAR>::iterator It = buffer.begin();It != buffer.end(); It++ )
since I've already copied the file into the buffer, but how do I search the buffer?
Code:
std::ifstream in(TempFullPath, std::ios::in|std::ios::binary);
if( in.fail() )
{
std::cout << "File does not exist or could not open file";
}
[Code]....
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Nov 28, 2013
I am facing an issue of file open failure after CopyFileW.
I suspect that some of the handle which is part of copy is still holding the file.
How can i wait till the OS handle free the file.
Any API's available to check this ?
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Jul 12, 2014
I am trying libtiff library (I downloaded the source codes as part of SDL2, but I test it separately). There is a test file named ascii_tag.c.
There is a line
Code:
tif = TIFFOpen(filename, "r");
and it breaks here when I run the program. Filename is:
Code:
static const char filename[] = "images/ascii_test.tiff";
and the file exists on disk, because the program just create it and closed the file handler. The error I got:
Debug assertion failed ... program name ... File: (and this is the strange thing!) f:ddvctoolscrt_bldself_x86crtsrcfstat64.c
line:64
Why it displays this path? I did not added this path to project so why it tries to call this file? I have installed VC in different location and running x86 32bit machine.
I already succeed to run test raw_decode.c where I used libtiff.lib and libjpeg.lib also here I used the libraries. I already succeed to open file there using
Code:
tif = TIFFOpen(srcfile,"r");
and srcfile = "./images/quad-tile.jpg.tiff".
Well I tried to use different path as "./images/ascii_test.tiff" but this also results in break. Where could be the problem that ascii_test.tiff cannot be opened?
Complete code:
Code:
/* $Id: ascii_tag.c,v 1.7 2008/04/15 13:32:12 dron Exp $ */
/* Copyright (c) 2004, Andrey Kiselev <dron@ak4719.spb.edu>
* GNU */
* TIFF Library
* Module to test ASCII tags read/write functions.
*/
#pragma once
#define _CRT_SECURE_NO_WARNINGS
//#pragma warning( disable : 4355 )
[code]....
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