[Vol-users] Problem using bitmaps in overlays

Hi all, I'm currently attempting to code up a bitmap (within an overlay) that consists of an array of 4 ulongs. With (say) a single ulong, the following works great: profile.merge_overlay({ 'XXX': [ None, ['Flags', {'target': 'unsigned long', 'bitmap': { 'A': 0, 'B': 1, 'C': 2 }}]] }) However, the obvious generalisation to 4 ulongs: profile.merge_overlay({ 'XXX': [ None, ['Flags', {'target': ['array', 4, ['unsigned long']], 'bitmap': { 'A': 0, 'B': 1, 'C': 2 }}]] }) fails. Looking at the source, the profile.merge_overlay calls: obj.Object(['array', 4, ['unsigned long']], offset=0, ..) and this function in turn raises an exception (i.e. TypeError: unhashable type: 'list') when it calls: vm.profile.has_type(['array', 4, ['unsigned long']]) Attempts at using obj.Array instead also flounder. Does anyone have any hints or tips as to how best to deal with bitmaps that are arrays of bytes, ulongs or similar? Is it a case of having to extend the obj.Flags class so that such things can be handled? Many thanks, Carl.