◆ LazyExpand()

def libtextworker.interface.wx.dirctrl.DirCtrl.LazyExpand	(		this,
		wx.PyEvent \| wx.TreeItemId	what
	)

Expand the given/currently selected item.

Explain: if the target item has childs inside, that means
the item has been opened before. This can be done by checking
whether the item full path is a directory and has items inside.

Definition at line 217 of file dirctrl.py.