TOPIC:

    private DocForm new_form_grid()
    {
        DocForm form = m_doc.NewForm();
        PageContent cs = new PageContent();
        cs.Create();
        cs.SetStrokeColor(0xffc6deff);
        cs.SetStrokeWidth(1);
        Path path = new Path();//just draw a rectangle, bounding form area.
        path.MoveTo(0, 0);
        path.LineTo(32, 0);
        path.LineTo(32,32);
        path.LineTo(0, 32);
        path.ClosePath();
        cs.StrokePath(path);
        path.Destroy();
        form.SetContent(cs, 0, 0, 32, 32);
        cs.Destroy();
        return form;
    }

    private void test_grid(Page page)
    {
        DocForm dform = new_form_grid();
        ResForm rform = page.AddResForm(dform);
        PageContent content = new PageContent();
        content.Create();//create content, do not forget.
        float y = 0;
        while(y < 800)
        {
            float x = 0;
            while(x < 600)
            {
                Matrix mat = new Matrix(10.0f/32, 10.0f/32, x, y);
                content.GSSave();
                content.GSSetMatrix(mat);
                content.DrawForm(rform);//repeat draw this form.
                content.GSRestore();
                x += 10;
            }
            y += 10;
        }
        page.AddContent(content, true);
        content.Destroy();
    }