C++ :: Pausing The Loop Till Keypress?
Jan 23, 2013
Are there anyways to pause the loop until either LCONTROL or RCONTROL is pressed?
Are there alternatives to stopping LCONTROL and RCONTROL increasing or decreasing counter by a huge sum?
#include <iostream>
#include <windows.h>
#include <conio.h>
[Code].....
View 6 Replies
ADVERTISEMENT
Mar 6, 2014
Just a quick newbie question: I'm doing a console application and whenever I open a .exe using system(), the console pauses and does not run the next instruction until I close this exe. For example when I do this:
...
system("mspaint.exe");
printf("Hello");
It opens ms paint and does not print the next message until Paint is closed. How do I work around this?
View 1 Replies
View Related
Nov 28, 2014
I'm working on an assignment that's supposed to open a text file, read the first 24 lines and then pause if there are more than 24 lines and wait for the user to hit enter for every 24 lines. my text file has 27 lines and each line is just a number 1-27. My program isn't stopping at 24, it's going all the way to 27 but when it's displaying the contents it shows the numbers 5-27.
#include <iostream>
#include <string>
#include <fstream>
using namespace std;
int main() {
fstream file;
string name;
[code]....
I've got the cin.get(); in hopes to pause the program after 24 but it's obviously not working
View 2 Replies
View Related
Aug 22, 2013
the program has to accept a keypress. It should wait for some fixed amount of time. If a key is pressed within this time, the program should call a function. If a key is not pressed in this time limit the program should continue its normal execution. The problem with getch() is that it essentially requires you to press a key and it does not allow other instructions to execute until the key is pressed.
View 3 Replies
View Related
Mar 4, 2014
I'm trying to implement keyboard controls to move a sphere(Player) with respond to keypress. Currently, when I press any key my character will move to the right by 0.1. How can I move my character with w(up),a(left),s(down),d(right) in their respective directions using respond to keypress?
Code:
class Player {
private:
double x, y;
public:
Player(double a, double b){x=a;y=b;}
void respondtokeypress(char a)
[Code] ....
View 8 Replies
View Related
Dec 21, 2014
I'm in the middle of creating a ePOS for my uncle and so far I've created a database for it where it will create, update and delete records successfully.
My next step I would like to do is to create a printer till thing, but how do I connect my database to that ?
I can create a till but how do I do link my database with it? I followed this example here [URL] ....
View 5 Replies
View Related
Mar 5, 2013
I think I need to use
Code:
while(input[0]!='
'){
scanf("%s", input)
printf("%s", pointerhere);
}
basically we were asked to make a program that will print everything before the user hits the enter button. we cannot use fgets and we have to use pointers here.
not sure what exactly to do. We were told not to use fgets cause it's so easy and we need to incorporate pointers in this project..
View 8 Replies
View Related
Feb 8, 2013
I am using fin.peek() to read character from input file and saving each character into an array. Each line from the input has first name, last name, id number, and then 5-6 grades. Random spacing between each one.
input file example:
Adam Zeller 45678 80 87 60 90 88 100
David Young 34521 34 56 76 76 76 76
Carl Wilson 909034 90 90 90 49 39
my code for reading in and storing each character is this:
while(fin.peek() == ' ')
fin.get();
while(fin.peek() != ' ') ///// first name {
c = fin.get();
first[i] = c;
[Code] ....
The problem I am having is what sort of loop would go around this to read till end of file. I have tried eof. I have tried while(!fin.peek == ') and I have tried a couple of other methods. these methods resulted in a never ending loop execution.
View 1 Replies
View Related
Oct 23, 2013
So I made a simple letter guessing game a while ago and I want to make a simple edit. If the user does not press 'y' or 'n' and instead inputs an invalid letter, I want the printf's in the main function to loop until the user chooses to play or quit.
And I want the choices to show up again at the end of a game. Basically I want it to keep asking if the user wants to play until the user chooses to exit. Here's my code:
#include <stdio.h>
#include <time.h>
#define MAX_GUESSES 6
void Instructions ( ); //displays instructions, returns nothing
char Play ( ); //this functions plays one game, returns W if user wins & L if user runs out of tries
[Code] .....
I'm thinking of making a separate function (like Instructions and Play) ... But how would I link the user input back to the main function?
View 3 Replies
View Related
Jun 26, 2012
I have a event called dataTree_AfterSelect in which I have some code which I want to execute as atomic operation like this:
protected void dataTree_AfterSelect(event params)
{
code that should not be disturbed
}
What is happening now is, I am able to select another node of tree & in that case another execution of above function starts causing a garbled result.
What I want is, user should be able to click on tree node but execution of code block should only start after first execution is totally over.
View 4 Replies
View Related
Feb 27, 2012
It seems to be going null. I can't get a null value, I want it to accept input till the user hits enter with no text typed. I've tried checking to see if the input is NULL, "", and " " all to no avail.
Code:
#include <stdio.h>
#include <sys/shm.h>
#include <sys/stat.h>
#include <iostream>
#include <fstream>
#include <string.h>
#include <cstring>
using namespace std;
int main() {
string info = "";
[Code] ....
View 7 Replies
View Related
Oct 13, 2014
We are making a program--but every time we input a value for scanf, the following for loop does not work and the program quits without displaying the for loop's function. We are not getting any errors.
View 11 Replies
View Related
Feb 15, 2015
I have tried to submit this topic before but i didn't submit my whole code and it was removed. So here it is. All I am trying to do is load form2 from form1 then back to form1 from form2 for a certain number of times the get out of the loop. I am new to C-Sharp and it seems as though I cant seem to figure out a way to do this.
Here is form1 and form2 code. I have commented out a few things I have tried.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
[Code]....
View 3 Replies
View Related
Jul 1, 2013
Code:
#include <stdio.h>
#include<ctype.h>
void try5t(){
char choice;
int choiceint;
[Code] .....
Loop is repeated an additional time as shown in the screenshot:
View 9 Replies
View Related
Feb 20, 2014
Given a for loop:
int i;
for(i = 0; i < 1000; i++)
;
How many nanoseconds, or microseconds or milliseconds does it take for each iteration? And why do some use it as a timer mechanism?
View 3 Replies
View Related
Apr 19, 2014
I already made a nested for loop into a while loop (below this) and now I'm trying to make the outer for loop into a do while loop, but it's not working.
#include <iostream>
using namespace std;
int main () {
int len;
int j;
int i;
[Code]....
And I can't make this code do the same thing. It stops after one loop, instead of continuing to the end. Why won't the loops continue?
#include <iostream>
using namespace std;
int main(){
int len;
cout << "Enter a number: ";
[Code] ....
View 2 Replies
View Related
Mar 25, 2012
I need to convert the following while loop:
count = 1;
while (caloriesForItem != 0, count != numberOfItems )
{
cout<<"Enter the calories: ";
cin >> caloriesForItem;
totalCalories += caloriesForItem;
count++;
}
This is what I have come up with:
totalCalories += caloriesForItem;
for (count = 1; caloriesForItem != 0; count != numberOfItems)
{
cout<<"Enter the calories: ";
cin >> caloriesForItem;
count++;
cout << "Total calories eaten today = " << totalCalories << endl;
}
However the output is not the same?
View 6 Replies
View Related
Sep 25, 2014
I for the life of me can't get my logic straight. I have 2 lists, 1 a list of text, and the other a list of int.
Here's my main list: List<string> ListNeedToADD = ListOfSPSExt.Except(ListOfReportExt).ToList();
Here's my second list:IEnumerable<int> result2 = Enumerable.Range(1, Convert.ToInt32(myValue)).Except(hostList);
I need to loop through my main list, ListNeedToADD, and for each item in that list, grab 1 value from the 2nd list and send those 2 items to a method. Something like this:
foreach (string myString in ListNeedToADD)
{
foreach (var item in result2)
{
intSort = item;
insertReportLimits(attribTable, myString, intSort, con);
}
}
The problem with doing it the way I am above is it loops through ALL the items for each myString.
For my method, it needs to look like this: insertReportLimits(attribTable, "34257", 22, con); then it would move on to the next: insertReportLimits(attribTable, "34854", 27, con); etc etc.
View 4 Replies
View Related
Feb 22, 2015
I can't get out of my loop to fill the array. This array should stop and print after 10 inputs. but it keeps asking for input.
This is what my code is supposed to do. Use 0 as sentinel for an array. Only positive ints will be entered into the array. A negative int should result in an error message, then input will continue. The numbers will be inserted into the array in ascending order. Do not insert them then sort the array.
#include <iostream>
#include <cmath>
using namespace std;
const int arraySize =10;
[Code].....
View 4 Replies
View Related
Apr 16, 2013
I am using a for loop to count down from 10 to 0 it's working to count down from 10 to 1 but when the program cames to the 0 then the program freezes by any reason.
Code:
#include <iostream>
using namespace std;
int main()
{
int number[2];
cout << "Enter number: ";
cin >> number[0];
if (number[0] == 1)
[Code] ....
View 11 Replies
View Related
Nov 8, 2013
Is there a way to end a loop ?
Code:
while ( menuopt == 1)
{
printf("Lets start
");
printf("12 x 4 = ?
");
[Code] ....
View 2 Replies
View Related
Mar 1, 2013
What I need to do to get rid of the infinite loop?
Code:
do {
printf("Enter the number of tests:");
scanf("%d", &test);
if (test< 0 || test> 4)
printf("Wrong number. Please try again!
");
}
while (test< 0 || test>4);
View 9 Replies
View Related
Apr 17, 2014
So I have a programming assignment.
Code:
#include <stdio.h>
int main(void)
{
int input;
int sum;
int i;
int t;
[Code] .....
So you input an integer ex) 30
the printing of t =(i+i)+1 and i++ is carried out until i=30, which is when the sum of all the t's is printed.
If the value you entered is not an integer, the loop ends.
I'm supposed to do this with one while loop, and no more. I can't use the for loop either.
How can I do this?
View 7 Replies
View Related
Jul 21, 2013
is it possible to output like this using only one loop? if yes, how?
target output Code: ABCDE
EDCBA here is my code but using one loop im not getting my target output Code: #include <stdio.h>
main()
{
int x, y;
for(x='a', y='e'; x<='e'; x++, y--)
{
printf("%c
%c", x, y);
}
getch();
}
View 6 Replies
View Related
Nov 16, 2013
I have a while loop that will not disengage when the input given as "exit".
Code:
while (orders != "exit"){
for (i=0;i<25;i++){
for (j = 0; j<50;j++){
if (i == x && y == j){
printf("H");}
else {
printf("%c", map[i][j]);}
[Code]....
View 1 Replies
View Related
Dec 6, 2013
I'm trying to create a connect four game, but I've ran into a problem while trying to read valid user input.
Code:
// 4 in a row game
#include <stdio.h>
#include <stdlib.h>
#define NUM_ROWS 6
#define NUM_COLS 7
}
[code]...
If the user enters an invalid number, then it works fine, but if a character is entered, the while loop in main never breaks.
View 9 Replies
View Related