This class represents a dialog that shows a list of strings, and allows the user to select one or more.

• atom parent
• sequence message
• sequence caption
• sequence choices
• atom style [= wxCHOICEDLG_STYLE]
• integer pos x [= -1]
• integer pos y [= -1]

pos x,y not supported in Win32.

Pass a sequence of zero based index to set_selection().

get_selection() will return a sequence of indexes, or an empty sequence.