Classes - Threads are sharing

I have a issue with muti threading that I dont fully understand.

Both my threads are calling a function called Message(string, x, y, color);

void Message(string text, int x, int y, int textc)
{
gotoxy(x,y);
textcolor(textc);
std::cout<<text<<endl;
}

The 1st thread works just fine, But when the second calls it it mostly outputs the stuff from the 1st thread.

gotoxy, and textcolor


Any sugestions, Would i need to make those 2 functions threaded or somthing, or just pause the thread that wants it and then pasue the other one so it can use it

do you want to do those two things at the same time?

You ARE synchronizing calls to that function, right? The whole function is a critical section. All those calls act on the console which you must consider a shared resource. (As such, a global console lock would be appropriate.)

In other words, if thread X starts executing that function before thread Y finishes the call, you'll get effects like that.