to stdout, return number of characters written
<tr valign=top>	<td><b><tt>GSDLL_DEVICE</tt></b>
	<td>&nbsp;
	<td>3
	<td>&nbsp;
	<td>device <b><tt>str</tt></b> has been opened if
		<b><tt>count</tt></b>&nbsp;=&nbsp;1, closed if
		<b><tt>count</tt></b>&nbsp;=&nbsp;0
<tr valign=top>	<td><b><tt>GSDLL_SYNC</tt></b>
	<td>&nbsp;
	<td>4
	<td>&nbsp;
	<td>sync_output for device <b><tt>str</tt></b>
<tr valign=top>	<td><b><tt>GSDLL_PAGE</tt></b>
	<td>&nbsp;
	<td>5
	<td>&nbsp;
	<td>output_page for device <b><tt>str</tt>