C++ :: Hold Screen Via GUI To Console
May 15, 2013
I had a program (on console) that uses a third-part software to draw some graphs. In order to hold the graphs on the screen, I used cin.get(); and that worked.
Now I created a GUI with Qt. The code remains generally the same. The code continues to call the software to draw graphs (during drawing graphs, there is a console opened automatically). Butcin.get(); in the code cannot hold the graphs on screen anymore. The graphs appear and disappear immediately.
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Dec 5, 2013
So, I'm making a program in C++ that emulates a full screen console... I used SetCurrentConsoleFontEx to set the font to 12x16 but it sucks...
Anyway, I read here: [URL] .... that also the console font can be changed, but I can't make it work! How can i set the font to Lucida Console? This is the function I use to change font size:
void setFontSize(int x, int y) {
PCONSOLE_FONT_INFOEX lpConsoleCurrentFontEx = new CONSOLE_FONT_INFOEX();
lpConsoleCurrentFontEx->cbSize = sizeof(CONSOLE_FONT_INFOEX);
GetCurrentConsoleFontEx(GetStdHandle(STD_OUTPUT_HANDLE), NULL, lpConsoleCurrentFontEx);
lpConsoleCurrentFontEx->dwFontSize.X = x;
lpConsoleCurrentFontEx->dwFontSize.Y = y;
SetCurrentConsoleFontEx(GetStdHandle(STD_OUTPUT_HANDLE), NULL, lpConsoleCurrentFontEx);
}
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Jun 7, 2014
i need to capture the console screen and save to a image:)
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Dec 28, 2013
How I can clear the whole screen in console...
And I'm using clrscr(); and its not working.
How i can change the text color in the .exe without using system function
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Sep 13, 2013
I'm using SDL to try to create a Run and Shoot game. But I do not know how to check if a key is down while the user is HOLDING it.
I do know how to check if a key was pressed.
I have tried with the "event.key.keysym.sym" and "Uint8 *keystate = GetKeyState(NULL)" both worked to check if a key was down but I thought that the GetKeyState(); Function would even check when a key where HELD down
I want my player to move while holding down left or right arrow. So I did something like:
Code:
Uint8 *keystate = GetKeyState(NULL);
if (keystate[SDLK_RIGHT]) {
apply_surface(x++, y, player, screen);
}
How to check if a key is held down?
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Feb 12, 2014
Is there a variable that can hold string and int in the same time?
If not, what can I do if I want to input data with string and int like a password for an example.
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Apr 8, 2013
I have a task to hold a number like 4.0000000000000000199e+30 and, in a variable like long double (the largest of the data type) doesn't hold the whole number, holds only 4.099e+30, like that.
Any way to hold the whole number?
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Oct 4, 2014
So far i know that the pointer is address value to the real variable. Pointer size depends on operation system right?
for example
32bit systems: 4byte pointers
64bit systems: 8byte pointers
128bit systems: 16byte pointers?
Anyways, there have to be an variable type in c++ what can hold a pointer.
Let's imagine that the int is the thing im looking for
struct stc1 {
char *chars;
int ints;
}
struct stc2 {
char *chars;
float floats;
[Code]....
My wish is to hold different types of variable or groups of different type of variables in one variable.
I am developing program in windows now yet it will be used in linux and who knows with what x bit systems.
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Dec 11, 2013
How would I use the list container to hold a class?
class A {
private : int x;
public : void setX(int val) { x = val; }
};
class B {
private : std::list<A> pdata;
public : void addToList();
};
For adding, I thought of trying something like
void B::addToList() {
A *tmp = new A;
if(A != 0) {
tmp->setX(5);
pdata.insert(tmp);
delete tmp;
}
}
How would I do what I'm trying to do? Or is this the wrong way to go about it? For the actual program, "B" would contain several lists of various classes.
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Nov 15, 2014
I have an abstract class named Terrain, and a class named RoadMap, which supposed to hold an N*N array of Terrains. But I'm not sure what type should the RoadMap class hold:
Code:
#ifndef TERRAIN_H
#define TERRAIN_H
class Terrain {
[Code] ....
I can't use an array of refernces here, so I tried this:
Code: Terrain** terrain; and then I thought this was the way to go:
Code: Terrain (*terrain)[]; But now I'm not sure.
The N*N matrix size supposed to be determined according to a given input... What type should I use there?
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Apr 3, 2013
// This program creates a structure to hold data for a kennel
#include<iostream.h>
struct KennelList {
int dogID;
char gender;
int age;
[Code] ....
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Aug 27, 2014
im doing a program to store name, age, time and fitness. and i need to hold a table of 5 such records.can i do this?
#include <iostream>
using namespace std;
int name1, age1, time1, fitness1;
int name2, age2, time2, fitness2;
int name3, age3, time3, fitness3;
int name4, age4, time4, fitness4;
int name5, age5, time5, fitness5;
[code].....
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Mar 6, 2015
For the past couple of weeks I have been working on a template to hold two-dimensional arrays. Right now I am puzzling over an indexing question.
There are many places in the template where I would like to use initializer_lists to refer to user-specified row and column ranges, particularly in member function arguments. A typical example would be a member function whose declaration would be along the lines of:
Code:
Array<Type>::some_function(std::initializer_list<int> columns, std::initializer_list<int> rows); which could get called via
Code:
arrayInstance.some_function({3:4}, {5:8});
It would be really nice to be able to use Matlab-style indexing to specify the last column, or the last row, in the Array object -- along the lines of
Code:
arrayInstance.some_function({3:4}, {5:END}); where END takes the value -1, and can be defined in Array, or somewhere else.
The way I have tackled this so far was to write myself an Indices PODS class with two elements to hold start and finish values, and a constructor-from-initializer_list that looks something like this:
Code:
Indices::Indices(std::initializer_list<int> range, int replace_value) {
int const *it = range.begin();
start = (*it == END) ? replace_value : *it ; ++it;
finish = (*it == END) ? replace_value : *it ;
...
}
So the elements of "range" give the values of Indices::start and Indices::finish -- but if either of them are entered as END by the user, they will be replaced by replace_value. (The default value of replace_value is END, so Indices::start and Indices::finish will never change if it is omitted.)
I also defined an Indices::endset(int) function to do the same thing for existing Indices objects:
Code:
Indices::endset(int replace_value) {
if (start == END) start = replace_value;
if (finish == END) finish = replace_value;
} Using Indices::endset, you can code up Array::some_function by modifying the above signature to something like
Code:
Array<Type>::some_function(Indices columns, Indices rows) {
columns.endset(this->M);
rows.endset(this->N);
...
}
This does work, and I've been able to use it in practice. However, it is klutzy. What I would really like to be able to do is have the Indices constructor handle value-replacements in "columns" and "rows", instead of needing to put calls to Indices::endset in every single Array<Type> member function that uses this approach.
The basic problem is that, when Array<Type>::some_function is called, there is no easy way of inserting Array<Type>::M and Array<Type>::N into the optional argument of the Indices constructor when "columns" and "rows" are being built.
The Indices class needs somehow to get access to these, and know which one is being used, M or N. So it needs to have some sort of deeper connection to Array<Type>, but I don't know what that connection should be.
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Jun 14, 2013
I need to dynamically create a new Memo structure to hold memorized fib #'s.I have two structures:
Code:
typedef struct HugeInteger
{
//array to hold the digits of a huge integer
int *digits;
//number of digits in the huge integer
int length;
}
[code]....
am having trouble with initializing the struct inside of the new Memo, I need the digit fields to null and the length field to 0 to indicate that F[i] has not yet been memoized...I have F->digits and F->length in the for loop but this just simply doesn't work..
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Jan 25, 2013
Consider a new data type, the mikesint, which can hold 9 bits.
(a) What is the largest integer that an unsigned mikesint can hold?
(b) What is the largest positive integer that a signed mikesint can hold?
(c) What is the largest negative integer that a signed mikesint can hold?
Not sure how to determine this. I'm stuck.
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Feb 10, 2015
Using SFML, I had a Board class which held multiple vectors of all of my object types in the game, and then it also held a vector of pointers to the memory addresses of these object instances, like this
class Board{
//...
std::vector<AbstractObject*> GetAllLevelObjects(){ return allLevelObjects; }
//so these are used to hold my object instances for each level
[Code]....
When looping through this vector and drawing the sprites of the objects, I get the runtime error 0xC0000005: Access violation reading location 0x00277000. I solved this error by storing the vector of pointers in the class that holds my Board instance, but I'm wondering why only this solution worked? Why couldn't I just have my vector of pointers in the same class that the instances of those objects were in?
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Jul 30, 2014
In pseudocode and in C code, declare two 1-dimensional parallel arrays of Integers to store the age and weight of a group of people that will hold the information of up to 10 people. Use a For loop to iterate through the array and input the values. This is the code i have, but my array is showing up as 11 and not 10?
Code:
#include <stdio.h>
int main() {
//Define Variables
float Age_Data[10],Weight_Data[10];
float Age_Input,Weight_Input;
[Code] .....
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Jun 19, 2014
I am working with a new text adventure. The way i want to construct it is by having a class for all living things. in the class you have basic things as: health, gold, vector for inventory holding "struct item". etc...
There is also a class called world, wich navigates through the world.
World class contains of: player location, and a map containing info about the room etc...
Here comes the problem. I want there to be characters to be placed out in different maps, so basically i want the world class to hold objects from Character.
How to do it. In world class i made a map...
std::map<int,"content">
content is a struct i made above in world class:
struct content{
std::string name; // location name
std::string info; // info about location
std::vector<Character>characters;
std::vector<item>items;
};
To sum it up, i have a std::map<int,content>map the int stands for location id. Content holds more info about the room and what's in it
btw the classes are in different files and that means i have to include "Character.h" in the world file so i can set up the vector of characters.
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Nov 12, 2014
This has been bothering me for a while now, and I finally put together an example:
#include <iostream>
#include <string>
using namespace::std;
[Code]....
In the code above, the two classes hold pointers to each other, and that's fine but it doesn't seem right since C++ prefers to pass by reference. Yes, it can still do that (see testbox and testball) but even that seems odd to me because still you need to use pointer notation for the enclosed object. Am I the only one who feels this way, and should I just get over it? Or am I missing something that would allow an object to hold a reference?
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Oct 11, 2014
Main console: qwer.exe
Secondary console: asdf.exe
System(c:asdf.exe);
I wanna open this asdf.exe new console. Not in the qwer.exe.
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Dec 22, 2014
Im having a problem with the below code within a console app, I am copying and pasting data across server locations, the copy works fine but it looks like the app wont close and I am left with the screen (Shown in attachment). I want to run this in part of a batch process but because the app stay open it wont move onto the next task.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
namespace SQL_Backup_Move_Files {
[Code] ....
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Jun 29, 2014
So I'm making a console rpg and after the task of making my save/load functions I began making a sha-256 checksum so the save file can't be edited. I've pretty much all of the code but when I save the game and the checksum of that save file with my save function, I go back to load it and it always goes to the statement that says the checksums do not match and when I check the chksum.dat the hash is the same every time, here is my code:
#include <iostream>
#include <conio.h>
#include <windows.h>
#include <string>
#include <stdlib.h>
#include <stdio.h>
#include <cstdlib>
#include <windows.h>
#include <fstream>
#include "sha256.h"
using namespace std;
void MaximizeWindow() {
[Code] .....
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Feb 11, 2014
I have turbo c++ on windows xp SP2.....whenever i compile my code in turbo c++ i am getting output outside the screen.....but when i used code::block....i get the correct output...fits to screen ...
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Mar 19, 2014
So i am struggling for days to get this done and all i need is to get the sum of the areas and get them printed on the screen my code is this:
Code:
#include<stdio.h>
#include <stdlib.h>
#include<conio.h> //Not needed in Dev C++//
#define PI 3.1415
float Area_of_Rectangular(float length,float width);
float Area_of_Circle(float radius);
int main()
[Code]...
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Jun 25, 2014
why I can't output ounces on the screen in c#...here's the code:
Code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Chapter7Problem12
{
class Program
}
[code]....
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Oct 31, 2013
My problem is :
Code: numbers[10]={25,27,17,19,47,3,98,5,124,10};
You write a program at do below processes for above array.
You want a number 1 between 10 at user.
if user enter N value,program write to screen lowest N. number at array. For example user enter 2,program write to screen lowest secondary number of 5 value at array or user enter 10 value,program write to screen maximum number of 124 value at array.
But write the program with don't use sorting algorithm.
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