/*
 * Scan 'C' Header File
 * Written by Thomas Krehbiel
 *
 * Standard error codes.
 *
 */

enum ERR_Tag {
   ERR_Error = 512,        /* Some kinda error */
   ERR_ChipMem,            /* Out of chip memory */
   ERR_Memory,             /* Out of public memory */
   ERR_Open,               /* Cannot open file */
   ERR_Screen,             /* Cannot open screen */
   ERR_Window,             /* Cannot open window */

   /* Library Errors: */
   ERR_NoIntuit,           /* Cannot open Intuition.library */
   ERR_NoGfx,              /* Cannot open Gfx.library */
   ERR_NoHame,             /* Cannot open Hame.library */
   ERR_NoArp,              /* Cannot open Arp.library */

   /* IFF Errors */
   ERR_NotIFF,             /* Not on IFF File */
   ERR_BadIFF,             /* IFF is mangled */

   /* ILBM Errors */
   ERR_NotILBM,            /* IFF is not an ILBM */
   ERR_Depth0,             /* Image depth is 0 */
   ERR_Depth6,             /* Image depth > 6 */
   ERR_Depth24,            /* Image depth not 24-bit */

   /* Misc Errors */
   ERR_NoHEInit,           /* HAME_Init() failed */
   ERR_DiffBM,             /* Bitmaps are different */

   ERR_LastError,          /* User errors begin here */

   /*
    * Basically just indicators.
    */
   ERR_UserCancel = 2001,     /* user cancelled operation */
   ERR_AtBoundary,            /* at buffer boundary */
   ERR_NOP,                   /* nothing to do */
   ERR_UserHalt,              /* user halted macro */
   ERR_dummy02,
   ERR_dummy03,
   ERR_dummy04,
   ERR_dummy05,
   ERR_dummy06,

   /*
    * Arexx- and command processing-specific errors.
    */
   ERR_BadCommand,            /* unknown command */
   ERR_BadArgs,               /* invalid arguments */
   ERR_dummy10,
   ERR_dummy11,
   ERR_dummy12,
   ERR_dummy13,
   ERR_dummy14,
   ERR_dummy15,
   ERR_dummy16,
   ERR_dummy17,
   ERR_dummy18,
   ERR_dummy19,

   /*
    * Other error codes.
    */
   ERR_NoSerial,              /* cannot open serial device */
   ERR_NoBuffer,              /* no image buffer to work on */
   ERR_MustBeColor,           /* image must be color */
   ERR_MustBeGrey,            /* image must be grey */
   ERR_NotOnDisk,             /* cannot process disk buffer */
   ERR_BadFileType,           /* unknown file type */
   ERR_NoPalette,             /* no palette in file */
   ERR_NotOnRegion,           /* cannot be done to region */
   ERR_ClipEmpty,             /* clipboard empty */
   ERR_NoImage,               /* no image in file */
   ERR_NeedAlpha,             /* need an alpha channel */
   ERR_NeedBrush,             /* need a brush to work with */
   ERR_NeedRegion,            /* need a region defined */
   ERR_NoIffParse,            /* iffparse.library not found */
   ERR_ModOpenFail,           /* module open failed */
   ERR_VmemDisabled,          /* virtual memory disabled */
   ERR_VmemFull,              /* virtual memory device full */
   ERR_MaxBufSize,            /* max buf size is 32768x32768 */
   ERR_Write,                 /* write error */
   ERR_Read,                  /* read error */
   ERR_BadDepth,              /* bad image depth */
   ERR_UnknownForm,           /* unknown form of image file */
   ERR_HookFailed,            /* hook program failed */
   ERR_NotOnBrush,            /* cannot perform op on brush */
   ERR_NotOnExternal,         /* cannot perform on external image */

   ERR_MaxError
};

#define ReturnError(x,v)   { SetError((x)); return ((v)); }
#define GotoError(x,L)     { SetError((x)); goto L; }