Description
void 
printer_draw_roundrect ( resource handle, int ul_x, int ul_y, int lr_x, int lr_y, int width, int height )
     The function simply draws a rectangle with rounded corners.
    
     handle must be a valid handle to a printer.
    
     ul_x is the upper left x coordinate of the rectangle.
    
     ul_y is the upper left y coordinate of the rectangle.
    
     lr_x is the lower right x coordinate of the rectangle.
    
     lr_y is the lower right y coordinate of the rectangle.
    
     width is the width of the ellipse.
    
     height is the height of the ellipse.
    
例子 1. 
      printer_draw_roundrect() example 
<?php $handle = printer_open(); printer_start_doc($handle, "My Document"); printer_start_page($handle);
  $pen = printer_create_pen(PRINTER_PEN_SOLID, 2, "000000"); printer_select_pen($handle, $pen);
  $brush = printer_create_brush(PRINTER_BRUSH_SOLID, "2222FF"); printer_select_brush($handle, $brush);
  printer_draw_roundrect($handle, 1, 1, 500, 500, 200, 200);
  printer_delete_brush($brush); printer_delete_pen($pen);
  printer_end_page($handle); printer_end_doc($handle); printer_close($handle); ?>
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