LTIMAGELISTCLASS Registered Class: Modifying the ImageList
L_ILM_CLEAR
L_ILM_INSERT
L_ILM_INSERTAT
L_ILM_SETITEM
L_ILM_REMOVE
L_ILM_SORT
L_ILM_SETBACKCOLOR
L_ILM_SETBORDERCOLOR
L_ILM_SELECTALL