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Make a windows app. + random number prob

excellion (2)
Okay so I'm making a variant on the game called 30 seconds, but the only thing the program I'm making needs to do is pick 5 random words and display them, it's doing that but something is wrong.. It always picks 5 words from 1 of the lists I make, while it should randomly pick words from the list.. you'll see what I mean in the program, try making 4 .txt files filled with the same stuff, you'll see every 'round' it'll give you items from the same list..

the code is 'a bit choatic' but that's because I've made a million changes but couldn't get it to pick a random list..

Second thing, I'd like to make this a VERY BASIC windows app.. currently it's just a console app (made in visual studio) but I'd just like one window with 5 labels and a button that kinda does the same thing, I tried it but when I'm doing every ting wrong xD
I code in the .cpp file when making the windows app but then I have to code in the .m part to change the .onclick handler for the button, but then it doesn't find my vector with the words in..

Help : )

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// 30Sseconds.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "time.h"
#include <vector>
#include <string>
#include <iostream>
#include <fstream>
#include <cstdlib>
#include <ctime> 
#include <limits>
#include <dos.h>
#include <stdio.h>
#include <conio.h>

using namespace std;

vector<string> persoon;
vector<string> ding;
vector<string> citaat;
vector<string> plaats;


void persoonF(){
	string line;
	ifstream myfile ("persoon.txt");
	if (myfile.is_open())
	{
		while ( myfile.good() )
		{
			getline (myfile,line);
			persoon.push_back(line);
		}
		myfile.close();
	}
}
void plaatsF(){
	string line;
	ifstream myfile ("plaats.txt");
	if (myfile.is_open())
	{
		while ( myfile.good() )
		{
			getline (myfile,line);
			plaats.push_back(line);
		}
		myfile.close();
	}
}
void citaatF(){
	string line;
	ifstream myfile ("citaat.txt");
	if (myfile.is_open())
	{
		while ( myfile.good() )
		{
			getline (myfile,line);
			citaat.push_back(line);
		}
		myfile.close();
	}
}
void dingF(){
	string line;
	ifstream myfile ("ding.txt");
	if (myfile.is_open())
	{
		while ( myfile.good() )
		{
			getline (myfile,line);
			ding.push_back(line);
		}
		myfile.close();
	}
}

string willekeurig(int will)
{
	string a;
	while(a.size() == 0){
		if(will <3)
		{if(persoon.size() != 0)
		{
			
			int random_integer = rand()%persoon.size();

			
			a = persoon[random_integer];
			persoon.erase (persoon.begin()+random_integer);
		}}
		if(will < 6 && will>=3)
		{
			if(ding.size() != 0)
			{
				int random_integer = rand()%ding.size();
				a = ding[random_integer];
				ding.erase (ding.begin()+random_integer);
			}
		}
		if(will<8 && will>=6)
		{
			if(citaat.size() != 0)
			{
				int random_integer = rand()%citaat.size();		
				a = citaat[random_integer];
				citaat.erase (citaat.begin()+random_integer);
			}
		}
		if(will < 10 && will >=8)
		{
			if(plaats.size() != 0)
			{
				int random_integer = rand()%plaats.size();
				a = plaats[random_integer];
				plaats.erase (plaats.begin()+random_integer);
			}
		}
	}
	return a;
}

void woord(){
		srand(time(NULL));
		int	will2 = rand() % 10;
		cout << "\n " << willekeurig(will2);
}

void Delay(float milliSeconds)
{
const float clk_strt = float(clock());
 
while( clock() - clk_strt < milliSeconds )
continue;
}

int _tmain(int argc, _TCHAR* argv[])
{
	persoonF();
	plaatsF();
	citaatF();
	dingF();

	
	srand(time(0));
	int will, will1, will2, will3, will4, will5, will6;
	while(true){
	
		cout << "\n >>>>>>>Druk op een knop om door te gaan<<<<<<<";
		cin.ignore(std::numeric_limits<streamsize>::max(),'\n');

		woord();
		Delay(50);
		woord();
		Delay(50);		
		woord();
		Delay(50);
		woord();
		Delay(50);		
		woord();
		

	}

	return 0;
}
holtaf (50)
I don't understand what this functions are for ???
persoonF();
plaatsF();
citaatF();
dingF();

They don't change anything,they don't return anything.
They only change a local variable <line>.
I don't read your code attentive,but i think that you must declare a <line > as global variable.
excellion (2)
Ofcourse they do a lot..

persoon
plaats
citaat
ding

are vectors and those functions fill the vectors with the words that are stocked in

persoon.txt
plaats.txt
citaat.txt
ding.txt
holtaf (50)
Oh sorry
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