Calendar Control

[PRF]

I'm trying to write a popup month calendar to replace the VB version I wrote long ago. My question is; how do I get Autoit to draw a circle around the date, as VB does, rather than a rectangle?

#include <DateTimeConstants.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#Include <GuiMonthCal.au3>
#Region ### START Koda GUI section ### Form=
$Form1 = GUICreate("Calendar", 380, 340, 346, 265)
$MonthCal1 = GUICtrlCreateMonthCal("", 0, 0, 380,340,$WS_BORDER, 0x00000000)
GUICtrlSetFont ($MonthCal1, 18,400,0,"MS Sans Serif")
_GUICtrlMonthCal_SetColor($MonthCal1, $MCSC_BACKGROUND, 0xFF007D)
_GUICtrlMonthCal_SetColor($MonthCal1, $MCSC_TEXT, 0xFFFFB0 )
_GUICtrlMonthCal_SetColor($MonthCal1, $MCSC_TITLEBK, 0x0000ff)
_GUICtrlMonthCal_SetColor($MonthCal1, $MCSC_TITLETEXT, 0xffffff)
_GUICtrlMonthCal_SetColor($MonthCal1, $MCSC_MONTHBK, 0xFF007D)
_GUICtrlMonthCal_SetColor($MonthCal1, $MCSC_TRAILINGTEXT, 0x9D989A)
GUISetState(@SW_SHOW)
#EndRegion ### END Koda GUI section ###
While 1
$nMsg = GUIGetMsg()
Switch $nMsg
  Case $GUI_EVENT_CLOSE
   Exit
EndSwitch
WEnd

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