char column = NULL; // used for the character the user inputs
cout << "Enter a column (1 to 7): "; // output prompt

while (column = getch()) // get key press
{
        if (int(column) >= 49 && int(column) <= 55) // if character is from 1 to 7
        {
            system ("cls"); // clear screen
            return int(column) - 49; // return 0 to 6, column entered minus 1
            break; // exit while loop
        } // end if
} // end while

//inputColumn()
{
    HANDLE hand = GetStdHandle (STD_INPUT_HANDLE); // used for the window handle
    INPUT_RECORD buffer [128]; // buffer to store records
    DWORD numRead; // number of records read
    HANDLE cursor = GetStdHandle (STD_OUTPUT_HANDLE); // handle to cursor (the flashing one)
    COORD point; // a point
    point.X = 0; // left column
    point.Y = 15; // past the other graphics

    POINT pos; // a point
    RECT rec; // 4 members: top, left, bottom, right (used for window position)
    HWND hwnd = GetConsoleWindow(); // get handle to console window (I wasn't sure if hand was this or not)

    GetCursorPos (&pos); // get mouse position (this is for experimenting where coords are for where to click)
    GetWindowRect (hwnd, &rec); // get window position

    string title = ::integerToString (pos.x - rec.left - 6); // title of window starts as x coordinate of cursor
    title += " | "; // add separator
    title += ::integerToString (pos.y - rec.top - 32); // add y coord
    SetConsoleTitle (title.c_str()); // set title

    SetConsoleMode (hand, ENABLE_MOUSE_INPUT); // allow mouse input
    SetConsoleCursorPosition (cursor, point); // set cursor position to just below all other text

    char column = NULL; // used for the character the user inputs
    cout << "Enter column (1 to 7): "; // output prompt

    while (1) // infinite loop
    {
        ReadConsoleInput (hand, buffer, 128, &numRead); // read input buffer

        for (int i = 0; i < numRead; ++i) // go through read records
        {
            switch (buffer[i].EventType) // make decision based on type of event
            {
                case MOUSE_EVENT: // if mouse event
                    MouseProc (buffer [i].Event.MouseEvent, column); // call mouse procedure
                    break; // exit switch

                case KEY_EVENT: // if keyboard event
                    KeyProc (buffer [i].Event.KeyEvent, column); // call keyboard procedure
                    break; // exit switch
            } // end switch
        } // end for

        if (int(column) >= 49 && int(column) <= 55) // if character is from 1 to 7
        {
            system ("cls"); // clear screen
            return int(column) - 49; // return 0 to 6, column entered minus 1
            break; // exit while loop
        } // end if
    } // end while
} // end function

// MouseProc (takes MOUSE_EVENT_RECORD and char & (the column))

    POINT pos; // a point
    RECT rec; // up until the switch is kind of left over from a point before
    HWND hwnd = GetConsoleWindow();

    GetCursorPos (&pos);
    GetWindowRect (hwnd, &rec);

    string title = ::integerToString (pos.x - rec.left - 6);
    title += " | ";
    title += ::integerToString (pos.y - rec.top - 32);
    SetConsoleTitle (title.c_str());

    switch (mouse.dwButtonState) // check state of mouse
    {
        case FROM_LEFT_1ST_BUTTON_PRESSED: // if left button pressed
        {
            int xCoord = pos.x - rec.left - 6; // xccord is where the mouse is relative to desktop minus window's left border minus 6 for the edge of window
            int yCoord = pos.y - rec.top - 32; // ycoord is mouse's y position minus top minus 32 for top edge

            if (xCoord > 23 && xCoord < 52 && yCoord < 153) // if mouse is in first column
            {
                column = '1'; // set value of column passed as argument to '1' (remember the user was pressing '1', not '0')
                return; // exit procedure
            } // end if

            if (xCoord > 52 && xCoord < 83 && yCoord < 153) // repeat the rest for other columns (and yes, I'm going to clean it up after)
            {
                column = '2';
                return;
            }

            if (xCoord > 83 && xCoord < 116 && yCoord < 153)
            {
                column = '3';
                return;
            }

            if (xCoord > 116 && xCoord < 148 && yCoord < 153)
            {
                column = '4';
                return;
            }

            if (xCoord > 148 && xCoord < 179 && yCoord < 153)
            {
                column = '5';
                return;
            }

            if (xCoord > 179 && xCoord < 209 && yCoord < 153)
            {
                column = '6';
                return;
            }

            if (xCoord > 209 && xCoord < 240 && yCoord < 153)
            {
                column = '7';
                return;
            }
            break;
        }
    }

    column = 1; // set column's int value to 1 if none of the above
}

// KeyProc (takes KEY_EVENT_RECORD and char &)

{
    if (key.bKeyDown) // if key was pressed
    {
        if (key.wVirtualKeyCode == 0x31) // if key code is code for '1'
        {
            column = '1'; // set column to '1'
            return; // exit function
        } // end if

        if (key.wVirtualKeyCode == 0x32) // repeat for other columns (I'm obviously planning on cleaning this one up after >.>)
        {
            column = '2';
            return;
        }

        if (key.wVirtualKeyCode == 0x33)
        {
            column = '3';
            return;
        }

        if (key.wVirtualKeyCode == 0x34)
        {
            column = '4';
            return;
        }

        if (key.wVirtualKeyCode == 0x35)
        {
            column = '5';
            return;
        }

        if (key.wVirtualKeyCode == 0x36)
        {
            column = '6';
            return;
        }

        if (key.wVirtualKeyCode == 0x37)
        {
            column = '7';
            return;
        }
    }

    else
    {
        column = 1; // set column to char (1) if none of the above
    }
}

void addOne (int &);

int main()
{
  int x = 0;
  cout << x;
  addOne (x);
  cout << x;
}

void addOne (int &num)
{
  ++num;
}

output:
0
1

void addOne (int *);

int main()
{
  int x = 0;
  cout << x;
  addOne (&x); // this is how microsoft does it i believe
  cout << x;
}

void addOne (int *num)
{
  ++*num;
}

//pass-by-value
void addOne (MyInt num)
==
void addOne (MyInt *num = new MyInt) // creates new object of type MyInt to use in function
...
delete num;
----------------------

void addOne (MyInt &num)
==
void addOne (num) // I'm not absolutely solid on how the compiler keeps track of all the variables, but it would pass the actual variable address or whatever, instead of allocating a different memory block and deallocating it after

while (column = getch())

while (1)