I'm programming in C and using Visual Studio++. The question is about the following code:
How can I stop the second thread within the first thread ?

I don't know if this is the right way to solve the problem, my knowledge about threads is...poor.

Thanks

Code:
#include <stdio.h>
#include <windows.h>
#include <conio.h>
#include <time.h>
#include <process.h>


HANDLE hStdIn, hStdOut; /* standard input, output handles */

void gotoxy (int col, int fil);

// second thread 
void crono(int *par);

// first thread
void main(void)
{

    int n;
    
    int fil = 0;
    HANDLE handle;

    printf("\t Thread\n");
	printf("\t_________\n");

    handle = (HANDLE) _beginthread( crono,0,&fil); // create thread
     
	for(n=0;n<10;n++)
	{
		gotoxy(0,n+2);
		printf("\ndoes it runs ???");
		fflush(stdin);
		getch();
		/*-----------------------------------------*/
		/* if(n==5) I WANT TO STOP THE 2ND THREAD */
		/*-----------------------------------------*/
	}
	printf("\n\n\nNYAM !!!\t");

 }

/***********************************************************************/

void crono(int *par)
{
	time_t ti,tf;
	int i,temps;

	time(&ti);

	do
	{
		//if(*param==5) _endthread;
		gotoxy(10,15);
		time(&tf);
		temps=tf-ti;
		printf("\r%d",temps);
		for(i=0;i<90000;i++);
		
	}while(temps<10);

    _endthread();

}
/************************************************************/

void gotoxy (int col, int fil)
{
	COORD coord;
	HANDLE hStdout; /* get variable handler for screen*/
	hStdout = GetStdHandle(STD_OUTPUT_HANDLE); /* assign screen handler*/

	coord.X = col; coord.Y = fil;
	SetConsoleCursorPosition (hStdout, coord);
}

/***********************************************************************/