What's with the polymode call.....

[Eric H. Echidna]

	We recently had some code that made use of the 'polymode' call
to change the way various polygons were being filled. It didn't have
ant effect at all. This is on a PI 4D25. Here is an example that doesn't
work....what's up?

#include <gl.h>
#include <device.h>

main()
{
	short	val;

	prefsize(700, 700);
	winopen("test1");

	unqdevice(INPUTCHANGE);
	qdevice(KEYBD);

	viewport(0, 600, 0, 500);
	ortho2(0.0, 600.0, 0.0, 500.0);

	color(CYAN);
	clear();

	color(RED);
	/*
	 * manual says that rectf is effected by polymode - it don't work
	 */
	polymode(PYM_LINE);
	rectf(100.0, 100.0, 400.0, 400.0);

	(void)qread(&val);

	color(CYAN);
	clear();

	color(GREEN);
	/*
	 * manual says that pmv/pdr/pclos is effected by polymode -
	 * it don't work
	 */
	polymode(PYM_LINE);
	pmv2(100.0, 100.0);
	pdr2(100.0, 400.0);
	pdr2(400.0, 400.0);
	pdr2(400.0, 100.0);
	pclos();

	(void)qread(&val);

	color(CYAN);
	clear();

	color(GREEN);
	polymode(PYM_POINT);
	pmv2(100.0, 100.0);
	pdr2(100.0, 400.0);
	pdr2(400.0, 400.0);
	pdr2(400.0, 100.0);
	pclos();

	(void)qread(&val);
}