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/* Copyright (c) 1991-2000 Microsoft Corporation.  All rights reserved.

    ipaddr.h - TCP/IP Address custom control, global definitions

*/


// Messages sent to IPAddress controls

#define	IP_CLEARADDRESS    WM_USER+100    // no parameters
#define	IP_SETADDRESS    WM_USER+101    // lparam = TCP/IP address
#define IP_GETADDRESS    WM_USER+102    // lresult = TCP/IP address
#define IP_SETRANGE    WM_USER+103    // wparam = field, lparam = range
#define IP_SETFOCUS    WM_USER+104    // wparam = field


// IP Address style bits

#define	IP_LEFT        0x00000001L    // left justify fields
#define IP_RIGHT    0x00000002L    // right justify fields
#define	IP_CENTER    0x00000004L    // center fields
#define IP_ZERO        0x00000008L    // Zero fill the fields


// The following is a useful macro for passing the range values in the
// IP_SETRANGE message.

#define	MAKERANGE(low, high)    ((LPARAM)(WORD)(((BYTE)(high) << 8) + (BYTE)(low)))

// And this is a useful macro for making the IP Address to be passed
// as a LPARAM.

#define MAKEIPADDRESS(b1,b2,b3,b4)    ((LPARAM)(((DWORD)(b1)<<24)+((DWORD)(b2)<<16)+((DWORD)(b3)<<8)+((DWORD)(b4))))

/*
    defines and Typedefs.
*/

#define	MAX_IPNOMEMSTRING    30
#define MAX_IPCAPTION        30
#define MAX_IPRES        256

//#define MAX_NAME    63
#define NUM_FIELDS    4    // number of fields in an IP Address
#define MIN_FIELD1    1    // min allowed value for field 1
#define MAX_FIELD1    223    // max allowed value for field 1
#define MIN_FIELD2    0    // min for field 2
#define MAX_FIELD2    255    // max for field 2
#define MIN_FIELD3    0    // min for field 3
#define MAX_FIELD3    254    // max for field 3
#define MIN_FIELD4      1       // 0 is reserved for broadcast

#define MAX_SCOPE_ID    47    // maximum number of characters in scope id
#define MAX_SESSIONS    22    // maximum number of sessions
#define	SESSION_DIGITS   2    // maximum length of sessions as a string
#define DEFAULT_SESSIONS 6    // default number of sessions
#define DEFAULT_SOCKETS  4    // default number of sockets
//#define MAX_NAME    63    // maximum length of hostname or domain

#define MAX_MBSTRING    400    // Maximum length of string for message box.
#define MAX_KEY        32    // Maximum length of a key field in a .INI file
#define	MAX_NOMEMSTRING    128    // Maximum length of out of memory string
#define MAX_CAPTION    80    // Maximum length of caption

#define IPADDRESS_CLASS            TEXT("RNA_IPAddress")

/* The character that is displayed between address fields. */
#define	FILLER        TEXT('.')
#define	SZFILLER    TEXT(".")
#define SPACE        TEXT(' ')
#define BACK_SPACE    8

/* Min, max values */
#define NUM_FIELDS    4
#define CHARS_PER_FIELD    3
#define HEAD_ROOM    2    /* space at top of control */
#define LEAD_ROOM    2    /* space at front of control */
#define MIN_FIELD_VALUE    0    /* default minimum allowable field value */
#define MAX_FIELD_VALUE    255    /* default maximum allowable field value */


/* All the information unique to one control is stuffed in one of these
   structures in global memory and the handle to the memory is stored in the 
   Windows extra space.
 */  

typedef struct tagFIELD {
    HANDLE    hWnd;
    FARPROC    lpfnWndProc;
    BYTE    byValue; /* current value for this field. */
    BYTE    byLow;    /* lowest allowed value for this field. */
    BYTE    byHigh;    /* Highest allowed value for this field.*/
} FIELD;

typedef struct tagCONTROL {
    HWND    hwndParent;
    UINT    uiFieldWidth;
    UINT    uiFillerWidth;
    DWORD    dwStyle;    /* Style bits for the control*/
    BOOL    fEnabled;
    BOOL    fPainted;
    BOOL    fInMessageBox;    /* Set when a message box is displayed so that
                                   we don't send a EN_KILLFOCUS message when
                   we receive the EN_KILLFOCUS message for the
                   current field. */
    BOOL    fHaveFocus;    /* TRUE if we have the focus, FALSE otherwise.*/
    FIELD    Children[NUM_FIELDS];
} CONTROL;


/* The following macros extract and store the CONTROL structure for a control.*/
#define    IPADDRESS_EXTRA            sizeof(HANDLE)

#define	GET_CONTROL_HANDLE(hWnd)    ((HANDLE)(GetWindowLong((hWnd), 0)))
#define SAVE_CONTROL_HANDLE(hWnd,x)    (SetWindowLong((hWnd), 0, (DWORD)x))


/* internal IPAddress function prototypes */
LONG CALLBACK IPAddrDlgProc(HWND, UINT, WPARAM, LPARAM );
LONG CALLBACK IPAddressWndFn( HWND, UINT, WPARAM, LPARAM );
LONG CALLBACK IPAddressFieldProc(HWND, UINT, WPARAM, LPARAM);
BOOL SwitchFields(CONTROL FAR *, int, int, DWORD, DWORD);
void EnterField(FIELD FAR *, DWORD, DWORD);
BOOL ExitField(CONTROL FAR *, int iField);
void PadField(CONTROL FAR *, int iField);
int GetFieldValue(FIELD FAR *);
DWORD CheckAddress(DWORD ip);