I'm not that great with PicWins, but I realized that there isn't a command in mIRC for drawing circles. I searched a little bit and found not many exist. So I decided to make one.

Idk what you might use it for, but here's a screenie too.

/drawcir

Syntax: /drawcir <@Window>

The x and y represent the center of the desired circle.

/drawrect
For this command, the degrees are a little different. If you were to look at a compass, 0 degrees is east, and as the degree increases, it goes clockwise.

Syntax /drawsect <@Window>

Note**: I'll add the switches for any of the possible draw commands later. For now, please rate.

alias drawcir {
  var %i = 0, %w = $1, %c = $2, %s = $3, %x = $4, %y = $5, %r = $6, %x1, %y1, %x2, %y2
  while (%i <= 360) {
    if (%i == 0) { 
      %x1 = $calc(%x + %r)
      %y1 = %y
      drawdot %w %c %s %x1 %y1
    }
    else {
      %x2 = %x1
      %y2 = %y1
      %x1 = $calc(%x + (%r * $cos(%i).deg)$cos(%i))
      %y1 = $calc(%y + (%r * $sin(%i).deg)$sin(%i))
      drawline %w %c %s %x1 %y1 %x2 %y2
    }
    inc %i
  }
}
alias circletest {
  window -pd @Test 1 1 200 200
  drawcir @Test 1 1 100 100 60
}

alias drawsect {
 var %i = $7, %b = $8, %w = $1, %c = $2, %s = $3, %x = $4, %y = $5, %r = $6, %x1, %y1, %x2, %y2
 while (%i <= %b) {
  if (%i = $7) {
   %x1 = $calc(%x + (%r * $cos(%i).deg)$cos(%i))
   %y1 = $calc(%y + (%r * $sin(%i).deg)$sin(%i))
   drawdot %w %c %s %x1 %y1
  }
  else {
   %x2 = %x1
   %y2 = %y1
   %x1 = $calc(%x + (%r * $cos(%i).deg)$cos(%i))
   %y1 = $calc(%y + (%r * $sin(%i).deg)$sin(%i))
   drawline %w %c %s %x1 %y1 %x2 %y2
  }
  inc %i
 }
}