How do I draw a line joining 2 windows coordinates

[ssv123]

Hi,
I am having (wx1,wy1)(wx2,wy2)(wx3,wy3)(wx4,wy4)Actually they are the coordinates of the square. I have these statements like
call moveto_w(wx1,wy1,wxy)
status = lineto_w(wx1,wy1)
call moveto_w(wx2,wy2,wxy)
status = lineto_w(wx2,wy2)
call moveto_w(wx3,wy3,wxy)
status = lineto_w(wx3,wy3)
call moveto_w(wx4,wy4,wxy)
status = lineto_w(wx4,wy4)

Now, how do I draw the lines and make a square.
????

 

[xwb]

Try

call moveto_w(wx1,wy1,wxy)
status = lineto_w(wx2,wy2)
status = lineto_w(wx3,wy3)
status = lineto_w(wx4,wy4)
status = lineto_w(wx1,wy1)

 

[ssv123]

Thankyou very much for your help.