</b>
<tr valign=top>	<td><b><tt>GSDLL_SIZE</tt></b>
	<td>&nbsp;
	<td>6
	<td>&nbsp;
	<td>resize for device <b><tt>str</tt></b>:
		LOWORD(<b><tt>count</tt></b>) is new <b><tt>xsize</tt></b>,
		HIWORD(<b><tt>count</tt></b>) is new <b><tt>ysize</tt></b>
<tr valign=top>	<td><b><tt>GSDLL_POLL</tt></b>
	<td>&nbsp;
	<td>7
	<td>&nbsp;
	<td>Called from <b><tt>gp_check_interrupt()</tt></b><br>
		Can be used by the caller to poll the message queue.
		Normally returns 0.  To abort
		<b><tt>gsdll_execute_cont()</tt></b>,