wxListCtrl

I have just modified the GUI file so it will stretch if you widen the window.
I using the following code to set the column headers

	Method SetColumnHeadings(ListControl:wxListCtrl)

		Select ListControl
			Case m_listCtrlDue
			
			Case m_listCtrlMainTask
				ListControl.InsertColumn(0, ("TM"), wxLIST_FORMAT_LEFT, 30)	' Team Member Initials
				ListControl.InsertColumn(1, ("Created"), wxLIST_FORMAT_LEFT, cListCtrlDateWidth)
				ListControl.InsertColumn(2, ("Task Name"), wxLIST_FORMAT_LEFT,200)
				ListControl.InsertColumn(3, ("Due Date"), wxLIST_FORMAT_LEFT, cListCtrlDateWidth)
				ListControl.InsertColumn(4, ("Completed"), wxLIST_FORMAT_LEFT, cListCtrlDateWidth)
				ListControl.InsertColumn(5, ("Cancelled"), wxLIST_FORMAT_CENTRE, cListCtrlDateWidth)
			
			Case m_listCtrlSubTask
			
			Default
				DebugLog "You have passed a ListCtrl that doesn't exist"
		End Select
	
	End Method

i would like the Task Name column to stretch to fill the gap as the window widens.
is there a way to do this?
I could get the listctrl width, subtract the other column widths and redefine MainTask width, assuming the ListCtrl itself has a width value that i can get, but it seems a bit "hacky" to me.

Cheers
Glenn