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Two .cpp and a header

Mar 13, 2012 at 5:41pm
BnL (2)
First, what I have so far.

Main.cpp

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#pragma once //if something is #included more than once, the extras are ignored.

#include "Window.h"
#include <iostream>
#include <stdlib.h>

using namespace std;

int main ()
{
	int Choice = 0;

	do
	{
		cout << "  ----menu----\n" << endl;
		cout << "1:---window---" << endl;
		cout << "2:---tvshow---" << endl;
		cout << "3:--mychoice--" << endl;
		cout << "4:----quit----\n" << endl;
		cout << "Please choose: ";

		cin >> Choice; 

		switch (Choice)
		{
			default:
				Choice = 0; break;
			case 1:
				cout << "\nunavailable..\n\n" << endl; ; break;
			case 2:
				cout << "\nunavailable..\n\n" << endl; break;
			case 3:
				cout << "\nunavailable..\n\n" << endl; break;
			case 4:
				cout << "\nGoodbye!" << endl; break;
		}
	}while (Choice !=4);
return 0;
}
Edit & run on cpp.sh


Window.cpp

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#include <iostream>
#include <stdlib.h>
#include "Window.h"
#include <string>
using namespace std;

void main()
{
	int Choice = -1;
	int Input = 0;
	string InputString = 0;
	Window Win1;
	do
	{
		cout << "\n\n-Window CPP-\n\n";
		switch (Choice)
		{
			default:
				break;
			case -1:
				cout << "\nHow wide is the window: "; 
				cin >> Input;
				Win1.getXpos(Input);
				//Choice = returnData
				break;
			case -2:
				cout << "\nHow tall is the window: "; 
				cin >> Input;
				Win1.getYpos(Input);
				//Choice = returnData
				break;
			case -3:
				cout << "\nWhat application is running within the window: "; 
				cin >> InputString;
				Win1.getWinname(InputString);
				//Choice = returnData
				break;
			case -4:
				cout << "\nZ is running in a X x Y window.";
				break;
		}
	}while (Choice !=-4);
}
Edit & run on cpp.sh


Window.h

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#include <iostream>
#include <stdlib.h>
#include <string>
using namespace std;

class Window
{
	//Variables
	int xposition, yposition;
	string winname;
	
	//3 set member functions
	int setXpos (int);
	int setYpos (int);
	int setWinname (string);

	//toString method
	//void toString ();

public:

	//3 get member functions
	int getXpos (int);
	int getYpos (int);
	int getWinname (string);
};

int Window::getXpos (int getX)
{
	setXpos(getX);
	return -2;
}

int Window::setXpos(int setX)
{
	if ((setX < 1) || (setX > 1920))
		xposition = setX;
	else
		return -1;
}

int Window::getYpos (int getY)
{
	setYpos(getY);
	return -3;
}

int Window::setYpos(int setY)
{
	if ((setY < 1) || (setY > 1080))
		yposition = setY;
	else
		return -2;
}

int Window::getWinname (string getWin)
{
	setWinname(getWin);
	return -4;
}

int Window::setWinname(string setWin)
{
	if (setWin > "")
		winname = setWin;
	else
		return -3;
}



My problem is that I don't know how to run Window.cpp when Choice = 1 in Main.cpp. This is my idea of what should happen:

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cout << "Please choose: ";

		cin >> Choice; 

		switch (Choice)
		{
			default:
				Choice = 0; break;
			case 1:
				/*Start Window.cpp*/ break;
			case 2:...


amidoinitrite? Am I completely misusing my .cpp and .h files?

Any and all help is appreciated!
Mar 13, 2012 at 5:50pm
Peter87 (11251)
A program can only have one main function. If you want to share a variable between functions you can pass it as an argument to the function. Another (less recommended) way is to use global variables that can be used by any function.
Mar 13, 2012 at 6:40pm
Shinigami (309)
your Window.h are not a .h file it is .cc file.
Window.h file will look like this.
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class Window
{
	//Variables
	int xposition, yposition;
	string winname;
	
	//3 set member functions
	int setXpos (int);
	int setYpos (int);
	int setWinname (string);

	//toString method
	//void toString ();

public:

	//3 get member functions
	int getXpos (int);
	int getYpos (int);
	int getWinname (string);
};


and all other code goes to
Window.cc file
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#include <iostream>
#include <stdlib.h>
#include <string>
#include "Window.h"
using namespace std;
int Window::getXpos (int getX)
{
	setXpos(getX);
	return -2;
}

int Window::setXpos(int setX)
{
	if ((setX < 1) || (setX > 1920))
		xposition = setX;
	else
		return -1;
}

int Window::getYpos (int getY)
{
	setYpos(getY);
	return -3;
}

int Window::setYpos(int setY)
{
	if ((setY < 1) || (setY > 1080))
		yposition = setY;
	else
		return -2;
}

int Window::getWinname (string getWin)
{
	setWinname(getWin);
	return -4;
}

int Window::setWinname(string setWin)
{
	if (setWin > "")
		winname = setWin;
	else
		return -3;
}
Mar 15, 2012 at 2:20am
BnL (2)
I have revised my code.

Main.cpp
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#pragma once //if something is #included more than once, the extras are ignored.

#include "Window.cpp"
#include <iostream>
#include <stdlib.h>

using namespace std;

int main ()
{
	int Choice = 0;

	do
	{
		cout << "  ----menu----\n" << endl;
		cout << "1:---window---" << endl;
		cout << "2:---tvshow---" << endl;
		cout << "3:--mychoice--" << endl;
		cout << "4:----quit----\n" << endl;
		cout << "Please choose: ";

		cin >> Choice; 

		switch (Choice)
		{
			default:
				Choice = 0; break;
			case 1:
				Winmain(); break;
			case 2:
				cout << "\nunavailable..\n\n" << endl; break;
			case 3:
				cout << "\nunavailable..\n\n" << endl; break;
			case 4:
				cout << "\nGoodbye!" << endl; break;
		}
	}while (Choice !=4);
return 0;
}
Edit & run on cpp.sh


Window.cpp
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#include <iostream>
#include <stdlib.h>
#include "Window.h"
#include <string>
using namespace std;

int Retrn = 0;

void Winmain()
{
	int Choice = -1;
	int Input = 0;
	string InputString = 0;
	Window Win1;

	do
	{
		cout << "\n\n-Window CPP-\n\n";
		switch (Choice)
		{
			default:
				break;

			case -1:
				cout << "\nHow wide is the window: "; 
				cin >> Input;
				Win1.getXpos(Input);
				Choice = Retrn;
				break;

			case -2:
				cout << "\nHow tall is the window: "; 
				cin >> Input;
				Win1.getYpos(Input);
				Choice = Retrn;
				break;

			case -3:
				cout << "\nWhat application is running within the window: "; 
				cin >> InputString;
				Win1.getWinname(InputString);
				Choice = Retrn;
				break;

			case -4:
				cout << "\nZ is running in a X x Y window.";
				break;
		}
	}while (Choice !=-4);
}

void Window::getXpos (int getX)
{
	Retrn = setXpos(getX);
}

int Window::setXpos(int setX)
{
	if ((setX < 1) || (setX > 1920))
	{
		xposition = setX;
		return -2;
	}
	else
		return -1;
}

void Window::getYpos (int getY)
{
	Retrn = setYpos(getY);
}

int Window::setYpos(int setY)
{
	if ((setY < 1) || (setY > 1920))
	{
		yposition = setY;
		return -3;
	}
	else
		return -2;
}

void Window::getWinname (string getWin)
{
	setWinname(getWin);
}

int Window::setWinname(string setWin)
{
	if (setWin > "")
	{
		winname = setWin;
		return -4;
	}
	else
		return -3;
}
Edit & run on cpp.sh


Window.h
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#include <iostream>
#include <stdlib.h>
#include <string>
using namespace std;

class Window
{
	//Variables
	int xposition, yposition;
	string winname;
	
	//3 set member functions
	int setXpos (int);
	int setYpos (int);
	int setWinname (string);

	//toString method
	//void toString ();

public:

	//3 get member functions
	void getXpos (int);
	void getYpos (int);
	void getWinname (string);
};


Debug returns this:
1>------ Build started: Project: cppProj1, Configuration: Debug Win32 ------
1>  Window.cpp
1>  Main.cpp
1>  Generating Code...
1>Window.obj : error LNK2005: "void __cdecl Winmain(void)" (?Winmain@@YAXXZ) already defined in Main.obj
1>Window.obj : error LNK2005: "public: void __thiscall Window::getXpos(int)" (?getXpos@Window@@QAEXH@Z) already defined in Main.obj
1>Window.obj : error LNK2005: "private: int __thiscall Window::setXpos(int)" (?setXpos@Window@@AAEHH@Z) already defined in Main.obj
1>Window.obj : error LNK2005: "public: void __thiscall Window::getYpos(int)" (?getYpos@Window@@QAEXH@Z) already defined in Main.obj
1>Window.obj : error LNK2005: "private: int __thiscall Window::setYpos(int)" (?setYpos@Window@@AAEHH@Z) already defined in Main.obj
1>Window.obj : error LNK2005: "public: void __thiscall Window::getWinname(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?getWinname@Window@@QAEXV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) already defined in Main.obj
1>Window.obj : error LNK2005: "private: int __thiscall Window::setWinname(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?setWinname@Window@@AAEHV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) already defined in Main.obj
1>Window.obj : error LNK2005: "int Retrn" (?Retrn@@3HA) already defined in Main.obj
1>G:\Ferg\Projects\cppProj1\Debug\cppProj1.exe : fatal error LNK1169: one or more multiply defined symbols found
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========


I don't understand what could be wrong, any and all help is again greatly appreciated!
Last edited on Mar 15, 2012 at 2:22am
Mar 15, 2012 at 4:56am
cire (8284)
You include *.h files, not *.cpp files.

#pragma once is a directive for *.h files.
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