regs/iigs/types.txt

RefDescriptor enum<int16> {
  refIsPointer = $0000,
  refIsHandle = $0001,
  refIsResource = $0002,
  refIsNewHandle = $0003,
}

bool = int16;

Double = int32;
Single = int16;
Extended = int32;
Real = int32;

Fixed = int32;
Frac = int32;
ExtendedPtr = ^Extended;

PackedByte = int8[];
Ptr = ^PackedByte;
PointerPtr = ^Ptr;
Handle = ^Ptr;

HandlePtr = ^Handle;

CStringPtr = Ptr;
CStringHndl = ^CStringPtr;
CStringHndlPtr = ^CStringHndl;
ProcPtr = Ptr;
VoidProcPtr = ProcPtr;
WordProcPtr = ProcPtr;
LongProcPtr = ProcPtr;

IntPtr = ^int16;
FPTPtr = Ptr;
String255 = String[255];
String = int8;
String255Ptr = ^String255;
String255Hndl = ^String255Ptr;
String255HndlPtr = ^String255Hndl;
Str255 = String255;
StringPtr = String255Ptr;
StringHandle = ^StringPtr;
String32 = String[32];
String32Ptr = ^String32;
String32Handle = ^String32Ptr;
Str32 = String32;

PointPtr = ^Point;
Point struct {
  v: int16;
  h: int16;
}
RectHndl = ^RectPtr;
RectPtr = ^Rect;
Rect union {
  struct {
    top: int16;
    left: int16;
    bottom: int16;
    right: int16;
  };
  struct {
    topLeft: Point;
    botRight: Point;
  };
}

TimeRecHndl = ^TimeRecPtr;
TimeRecPtr = ^TimeRec;
TimeRec struct {
  second: uint8;
  minute: uint8;
  hour: uint8;
  year: uint8;
  day: uint8;
  month: uint8;
  extra: uint8;
  weekDay: uint8;
}

Ref union {
  refIsPointer: Ptr;
  refIsHandle: Handle;
  refIsResource: ResID;
  refIsNewHandle: Handle;
}