This syntax is new to me:
/* POV-Ray Message Classes */
enum
{
kPOVMsgClass_RenderControl = 'Ctrl',
kPOVMsgClass_RenderOutput = 'Outp',
kPOVMsgClass_IniOptions = 'IniO',
kPOVMsgClass_Miscellaneous = 'Misc'
}; // How does this work ? --^^^^^
'Ctrl' is quite a bit different from what I'm used to using for enumeration,
and also looks a bit like a four-byte char?
