How to pause a program for a few milliseconds?

Question

How to pause a program for a few milliseconds using C++ managed code? I tried Sleep() but it didn't work when I included the winbase.h file, I got lots of compile errors!

for(int i=0; i<10; i++)
 {
   simpleOpenGlControl1->MakeCurrent();
  System::Threading::Thread::Sleep(100);
      theta_rotated += 2.0* 3.141592653/(double)Model->size()/10.0;

  simpleOpenGlControl1->Invalidate();
 }

private: System::Void simpleOpenGlControl1_Paint(System::Object^  sender, System::Windows::Forms::PaintEventArgs^  e) 
         {

             Gl::glMatrixMode(Gl::GL_MODELVIEW);
             Gl::glLoadIdentity();
             Gl::glClearColor(1, 1, 1, 1);
             Gl::glClear(Gl::GL_COLOR_BUFFER_BIT | Gl::GL_DEPTH_BUFFER_BIT);
             camera->Tellgl();
             Gl::glRotated(Angle,X,Y,Z);
             RenderModels();
         }
void RenderModels(void)
{
    Points = gcnew System::Collections::Generic::List<Point>();
    Point p(0,0) ;
    int t = -5;
    double r = 5;
    double x, z, theta;
    for(int i = 0;i < Model->size();i++)
    {
        theta = i*2* 3.141592653/ (double)Model->size();
        x = r*sin(theta + theta_rotated);
        z = r*cos(theta + theta_rotated);
         Gl::glPushMatrix();
         Gl::glTranslated(x,0,z);
         Model->at(i).Render();
         p.X=x;
         p.Y=0;

         Points->Add(p);
         t +=1;
         Gl::glPopMatrix();
    }
    //simpleOpenGlControl1->Invalidate();
}

Answer 1

You want System::Threading::Thread::Sleep(). http://msdn.microsoft.com/en-us/library/system.threading.thread.sleep.aspx

Answer 2

#include <unistd.h>

main() {    
   usleep(2000); // 2 msecs 
}

Read the man pages ;-) man 3 usleep

Answer 3

System::Threading::Thread::Sleep() as mentioned in another answer. But let me warn you, it is not precise, and for small (milliseconds) Sleep is extremely imprecise. consider that your app run together with other apps and threads and they all want processor time.