// From APPSHELL91 source analysis - actual implementation
struct Object objects[] = {
    {&objects[1], 0, 0, OBJ_Window, NULL, NULL, NULL, "Main", TEXT_TITLE,
     {0, 0, 0, 0}, NULL,},

    {NULL, 0, 0, OBJ_Cycle, SetModeID, NULL, NULL, "Mode", TEXT_LABEL,
     {44, 4, 101, 16}, output_tags,},
};

// From APPSHELL91 source analysis - project management
struct Project {
    struct List p_ProjList;         /* Project list */
    struct ProjNode *p_CurProj;     /* Current project */
    LONG p_NumProjs;                /* Number of projects */
    LONG p_MaxID;                   /* Next available ID */
    LONG p_State;                   /* Listview state */
    LONG p_TopView;                 /* Listview top line */
    LONG p_CurLine;                 /* Listview current line */
    ULONG p_Flags;                  /* Project flags */
    APTR p_UserData;                /* User data extension */
    APTR p_SysData;                 /* System data extension */
};

// From source analysis - project node management
struct ProjNode {
    struct Node pn_Node;            /* embedded Exec node */
    struct DateStamp pn_Added;      /* date stamp when added to list */
    BPTR pn_ProjDir;               /* lock on project directory */
    STRPTR pn_ProjPath;            /* pointer to the projects' complete name */
    STRPTR pn_ProjName;            /* pointer to the projects' name */
    STRPTR pn_ProjComment;         /* pointer to the projects' comment */
    struct DiskObject *pn_DObj;     /* pointer to the projects' icon */
    LONG pn_ID;                     /* user selected order */
    APTR pn_SysData;               /* System data extension */
    ULONG pn_Status;               /* status of project */
    ULONG pn_ProjID;               /* project ID */
    UBYTE pn_Name[32];             /* project name */
    APTR pn_UserData;              /* UserData for project */
    BOOL pn_Changed;               /* has project been modified? */
};

// From source analysis - project operations
#define NewID        (MAIN_Dummy+500L)  /* new project/process */
#define ClearID      (MAIN_Dummy+501L)  /* clear current project */
#define OpenID       (MAIN_Dummy+502L)  /* open an existing project */
#define SaveID       (MAIN_Dummy+503L)  /* save project to existing name */
#define SaveAsID     (MAIN_Dummy+504L)  /* save project to a new name */
#define RevertID     (MAIN_Dummy+505L)  /* revert project to last saved */

// From APPSHELL91 analysis - ARexx integration
struct TagItem Handle_AREXX[] = {
    {APSH_Extens, (ULONG) "skel"},
    {APSH_Rating, APSH_OPTIONAL},
    {TAG_DONE,}
};

// From APPSHELL91 analysis - SIPC integration
struct TagItem Handle_SIPC[] = {
    {APSH_Rating, APSH_REQUIRED},
    {TAG_DONE,}
};

// From APPSHELL91 analysis - command shell integration
struct TagItem Handle_DOS[] = {
    {APSH_Status, APSHP_INACTIVE},
    {APSH_Rating, APSH_REQUIRED},
    {TAG_DONE,}
};