Note: High Word of dimensions are used for relational flags.
See GTA_REL_ macros.
*/
#define GTA_LeftEdge (GTA_Dummy + 3)
#define GTA_XPos GTA_LeftEdge /* Just an alias */
#define GTA_TopEdge (GTA_Dummy + 4)
#define GTA_YPos GTA_TopEdge
#define GTA_Width (GTA_Dummy + 5)
#define GTA_Height (GTA_Dummy + 6)
#define GTA_GadgetText (GTA_Dummy + 7)
#define GTA_TextAttr (GTA_Dummy + 8)
#define GTA_GadgetID (GTA_Dummy + 9)
#define GTA_Flags (GTA_Dummy + 10)
#define GTA_VisualInfo (GTA_Dummy + 11)
#define GTA_UserData (GTA_Dummy + 12)
#define GTA_GadgetKind (GTA_Dummy + 13)
#define GTA_GadgetTags (GTA_Dummy + 14) /* The next ti_Data tags are GTXX_ tags */
#define GTA_GadgetTagList (GTA_Dummy + 15)
#define GTA_OffsetX (GTA_Dummy + 16) /* global offset from left of window - note that this will be added to GTA_UseScreenOffsets & GTA_UseWindowOffsets*/
#define GTA_OffsetY (GTA_Dummy + 17) /* global offset from top of window */
#define GTA_LabelFlags (GTA_Dummy + 18) /* see LGLF_ */
#define GTA_Justification (GTA_Dummy + 21) /* see GTA_JUST_? */
#define GTA_UseScreenOffsets (GTA_Dummy + 22) /* (struct Screen *) or NULL - sets global offsets based on Window border dimensions specified in the Screen structure */
#define GTA_UseWindowOffsets (GTA_Dummy + 23) /* (struct Window *) or NULL - sets global offsets based on Window border dimensions */
#define GTA_EraseRemoved (GTA_Dummy + 24) /* (BOOL) erase gadges when they're removed using GTA_RemoveGadgets (defualt TRUE ) */
#define GTA_KeyClass (GTA_Dummy + 25) /* Not used */
#define GTA_KeyString (GTA_Dummy + 26) /* A string of characters that "activate" that gadget, if not specified, GTA_CreateGadget() will scan the gadget label for the appropriate string */
#define GTA_ErrorCode (GTA_Dummy + 27) /* Not used */
/* Bounding area for gadgets */
#define GTA_Bounds (GTA_Dummy + 28) /* (struct IBox *) set offsets of area for gadgets */
/* individual tags for GTA_Bounds */
#define GTA_BoundsLeft (GTA_OffsetX) // Aliases
#define GTA_BoundsTop (GTA_OffsetY)
#define GTA_BoundsWidth (GTA_Dummy + 29)
#define GTA_BoundsHeight (GTA_Dummy + 30)
#define GTA_RelHorizGap (GTA_Dummy + 31) /* Gap between certain relative operations */