Simple drawing HOWTO needed

From: Terrence Brannon (brannon@quake.usc.edu)
Date: Sun Jun 29 1997 - 05:37:54 MEST 

I tried to paint a canvas grey and then fill each pixel with another
color of pixel. But failed. How does one do this? I think this great
material for the HOWTO section.

{
r = new TCanvas("name", "title", 100, 100) ;
r.SetFillColor(14);

TPolyMarker * pm2d = new TPolyMarker(100*100);

int count = 0;
for (int i = 0; i < 100; ++i) {
  for (int j = 0; j < 100; ++j) {
    
    printf ("%d,%d \n", i,j);

    pm2d->SetPoint(count++,j,i);
    pm2d->Draw();
  }
}

r.Update();
}


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