Windows.h: COORD function error

I have use a function of <windows.h> library. And I have met error with MS Visual Studio 2010, but when I compiled on Dev-C++, No problem. Here my code:

Code:

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void gotoXY(int x, int y)
{
        COORD coor;
        coor.X=x;
        coor.Y=y;
        int a =coor.X;
        SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),coor);
}
void clearLine(int line)
{
        COORD coor;
        int x=coor.X;
        int y=coor.Y;  //Error in this line: VS 2010 . but no problem in Dev-C++
        gotoXY(0,line);
        for(int i=0;i<50;i++) std::cout<<" ";
        gotoXY(x,y);        //back to the past cursor
}
int main ()
{
        gotoXY(3,4);
        clearLine(0);
        getch();
  return 0;

}

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when I compile, VS tak error:

Quote:

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the vaialbe 'coor' is being used without being initalized

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who know this problem, tell to me,please.
thanks :)

In the following snippet:

Code:

---

void clearLine(int line)
{
    COORD coor;
    int x=coor.X;
    int y=coor.Y;  //Error in this line: VS 2010 . but no problem in Dev-C++
    gotoXY(0,line);
    for(int i=0;i<50;i++) std::cout<<" ";
    gotoXY(x,y);    //back to the past cursor
}
}

---

Where does the value coor.X and coor.Y come from? Before you can use these values in a equation they must be assigned a value.

Also if you turn on the warnings with Dev-C++ it would also produce some warnings.

Jim

Oh, thanks very much. May I have understand. if I don't thinking wrong, coor.X and coor.Y are just parameter of struct COORD. (but before that, I think coor.X and coor.Y is the present cursor) so I get the present cursor and save it.
So, how can I take the current cursor, can you teach me ?
thanks :)

Search the web for how to use the GetConsoleScreenBufferInfo function for that purpose.