Не работает задержка консоли

#include <vcl.h>
#include <windows.h>
#include <conio.h>
#include <glut.h>   //Ïîäêëþ÷åíèå áèáëèîòåêè glut.h
 
void Initialize()
{
//Âûáðàòü ôîíîâûé (î÷èùàþùèé) öâåò
glClearColor(1.0,0.0,1.0,1.0);
 
//Óñòàíîâèòü ïðîåêöèþ
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0,1.0,0.0,1.0,-1.0,1.0);
}
 
void Draw()
{
//Î÷èùàåì ýêðàí glClear(GL_COLOR_BUFFER_BIT);
 
//Îòðèñîâêà êâàäðàòà 
glColor3f(1.0,1.0,1.0); //Âûáèðàåì áåëûé öâåò
glBegin(GL_POLYGON);
glVertex3f(0.25,0.25,0.0); //Êîîðäèíàòû êâàäðàòà
glVertex3f(0.75,0.25,0.0); 
glVertex3f(0.75,0.75,0.0);
glVertex3f(0.25,0.75,0.0);
glEnd();
glFlush();
}
 
//Âîéòè â ãëàâíûé öèêë
int main(int argc, char **argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB);
glutInitWindowSize(400,400);        //Óêàçûâàåì ðàçìåð îêíà
glutInitWindowPosition(100,100);    //Ïîçèöèÿ îêíà
glutCreateWindow("Polygon");        //Èìÿ îêíà
Initialize();                       //Âûçîâ ôóíêöèè Initialize
glutDisplayFunc(Draw);              //Âûçîâ ôóíêöèè îòðèñîâêè
glutMainLoop();
system("PAUSE");
getch();
return 0;
}

#include <vcl.h>
//---------------------------------------------------------------------------
#pragma hdrstop
#include <windows.h>
#include <gl\glut.h>
//---------------------------------------------------------------------------
#pragma argsused
void RenderScene(void){
 glClear(GL_COLOR_BUFFER_BIT);
 glFlush();
     }
void SetupRc(void){
 glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
     }
int main(int argc, char* argv[])
{
  glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
    glutCreateWindow("Test Window");
 
    glutDisplayFunc(RenderScene);
    SetupRc();
    glutMainLoop();
 
    system("PAUSE");
        return 0;
}
//---------------------------------------------------------------------------