C/C++ Users Group Library 1996 July

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C/C++ Source or Header | 1991-04-10 | 35.5 KB | 1,454 lines

/* HEADER: wtwg.h TITLE: include (header) file for window routines in wtwg library. VERSION: 1.0 DATE: 5/1/90 DESCRIPTION: include (header) file for window routines. KEYWORDS: windows, keyboard, mouse, text, graphics, expanded memory, menus; SYSTEM: MS-DOS v3.0, probably works with v2.0 but untested; FILENAME: wtwg.h WARNINGS: SEE-ALSO: readme.doc, define.doc, funcs.doc AUTHOR: David Blum COMPILERS: Turbo C v2.0, Microsoft C v5.1 */ #ifndef WTWG_HEADER #define WTWG_HEADER #include <stdio.h> #include <stdlib.h> /* required for FILE definition */ #include <time.h> /* req'd for time_t */ #ifdef __cplusplus extern "C" { #endif /* c++ */ #ifndef ON #define ON 1 #define OFF 0 #endif /* ifndef ON */ #ifndef TRUE #define TRUE 1 #define FALSE 0 #endif /* ifndef TRUE */ #ifndef BLINK #define BLINK 0x80 #endif /* BLINK */ #ifndef BRIGHT #define BRIGHT 0x08 #endif /* BRIGHT */ /* these peculiar defines are required to prevent 'redefinitions' * ie, conflicts with graphics.h */ #ifndef __COLORS #define __COLORS enum COLORS { BLACK = 0 , BLUE , GREEN , CYAN , RED , MAGENTA , BROWN , LIGHTGRAY , DARKGRAY , LIGHTBLUE , LIGHTGREEN , LIGHTCYAN , LIGHTRED , LIGHTMAGENTA, YELLOW , WHITE }; #define LIGHTGREY LIGHTGRAY #define DARKGREY DARKGRAY #endif /* COLORS */ /* keyboard symbolic definetions */ #define CTRL(L) (L - 0x40) /* L must be uppercase */ /* Function keys apply only to F1-F10. see below for F11, F12 */ #define FKEY(x) (128+ 58 +(x)) #define SHIFT_FKEY(x) (128+ 83 +(x)) #define SHIFTFKEY(x) (128+ 83 +(x)) #define CTRL_FKEY(x) (128+ 94 +(x)) #define CTRLFKEY(n) (128+ 94 +(n)) #define EXTENDED_KEY 00 #define BACKSPACE (0x08) #define CTRL_BACKSPACE 127 #define SHIFT_BACKSPACE 8 #define ENTER (0x0d) #define RETURN (0x0d) #define CTRL_ENTER (0x0a) #define ESCAPE (0x1b) #define CTRL_LEFTBRACKET 0x1b #define CTRL_RIGHTBRACKET 0x1c #define END (128+ 79) #define CTRL_END (128+ 117) #define HOME (128+ 71) #define CTRL_HOME (128+ 119) #define PAGE_DOWN (128+ 81) #define PAGE_DN (128+ 81) #define CTRL_PgDn (128+ 118) #define CTRL_PAGE_DN (128+ 118) #define CTRL_PAGE_DOWN (128+ 118) #define PAGE_UP (128+ 73) #define UP_ARROW (128+ 72) #define DOWN_ARROW (128+ 80) #define DN_ARROW (128+ 80) #define LEFT_ARROW (128+ 75) #define LT_ARROW (128+ 75) #define CTRL_LT_ARROW (128+ 115) #define CTRL_LEFT_ARROW (128+ 115) #define RIGHT_ARROW (128+ 77) #define RT_ARROW (128+ 77) #define CTRL_RT_ARROW (128+ 116) #define CTRL_RIGHT_ARROW (128+ 116) #define INSERT (128+ 82) #define DELETE (128+ 83) #define TAB (9) #define SHIFT_TAB (128+ 15) #define BACKTAB (128+ 15) #define CTRL_PRTSCRN (128+ 114) #define CTRL_MINUS 31 #define CTRL_BACKSLASH 28 #define MOUSE 128 /*! ALT key functions. apply only to ALT_letter combinations */ int ALT (int val); int unALT (int keypress); #define ALTFKEY(n) (128 +103+ (n)) #define ALT_FKEY(n) (128 +103+ (n)) #define isALT(xx) ( (xx) >= 0x10+128 && (xx) <= 0x32+128 ) #define ALT_A (0x1E+128) #define ALT_B (0x30+128) #define ALT_C (0x2E+128) #define ALT_D (0x20+128) #define ALT_E (0x12+128) #define ALT_F (0x21+128) #define ALT_G (0x22+128) #define ALT_H (0x23+128) #define ALT_I (0x17+128) #define ALT_J (0x24+128) #define ALT_K (0x25+128) #define ALT_L (0x26+128) #define ALT_M (0x32+128) #define ALT_N (0x31+128) #define ALT_O (0x18+128) #define ALT_P (0x19+128) #define ALT_Q (0x10+128) #define ALT_R (0x13+128) #define ALT_S (0x1F+128) #define ALT_T (0x14+128) #define ALT_U (0x16+128) #define ALT_V (0x2F+128) #define ALT_W (0x11+128) #define ALT_X (0x2d+128) #define ALT_Y (0x15+128) #define ALT_Z (0x2C+128) #define ALT_1 (128+120) #define ALT_2 (128+121) #define ALT_3 (128+122) #define ALT_4 (128+123) #define ALT_5 (128+124) #define ALT_6 (128+125) #define ALT_7 (128+126) #define ALT_8 (128+127) #define ALT_9 (128+128) #define ALT_0 (128+129) #define ALT_MINUS (128+130) #define ALT_EQ (128+131) #define ALT_EQUAL (128+131) #define CTRL_PgUp (128+132) #define CTRL_PAGE_UP (128+132) /* enhanced kbd only */ #define ALT_ESCAPE (128+1 ) #define ALT_BKSPACE (128+14 ) #define ALT_LT_BRACKET (128+26 ) #define ALT_RT_BRACKET (128+27 ) #define ALT_ENTER (128+28 ) #define ALT_SEMICOLON (128+39 ) #define ALT_QUOTE (128+40 ) #define ALT_ACCENT (128+41 ) #define ALT_BKSLASH (128+48 ) #define ALT_COMMA (128+51 ) #define ALT_PERIOD (128+52 ) #define ALT_SLASH (128+53 ) #define CTRL_UP_ARROW (128+141) #define CTRL_DN_ARROW (128+145) #define ALT_HOME (128+151) #define ALT_UP_ARROW (128+152) #define ALT_PGUP (128+153) #define ALT_LT_ARROW (128+155) #define ALT_RT_ARROW (128+157) #define ALT_END (128+159) #define ALT_DN_ARROW (128+160) #define ALT_PGDN (128+161) #define ALT_INSERT (128+162) #define ALT_DEL (128+163) #define ALT_TAB (128+165) /* numpad 5 with numlock off - enh kbd only. */ #define NUMPAD_5 (128+ 76) /* NOTE that FKEY 11 and 12 arehandled separate from F1-10 * enh kbd only. */ #define FKEY_11 (128+133) #define FKEY_12 (128+134) #define SHIFT_FKEY_11 (128+135) #define SHIFT_FKEY_12 (128+136) #define CTRL_FKEY_11 (128+137) #define CTRL_FKEY_12 (128+138) #define ALT_FKEY_11 (128+139) #define ALT_FKEY_12 (128+140) /* monochrome attributes */ #define WHITE_ON_BLACK 0x02 /*green*/ #define BLACK_ON_WHITE 0x70 #define UNDERLINE 0x01 /*blue */ /*red =x04 */ #define BOLDFACE 0x0A /* = 0x08 + green */ /* timout limit for screen saver routine * currently set at 3 minutes * If you change this definition you should recompile wgetc.c */ #define WTIMEOUT_LIMIT 3*60 /* line-drawing characters. see wbox[] */ struct WBOX_PATTERN { unsigned char nw, horiz, ne, sw, vert, se ; }; /* array values for wbox[] */ #define NO_BORDER 0 #define SINGLE_BORDER 1 #define DOUBLE_BORDER 2 #define SPECKLE_BORDER 3 #define SOLID_BORDER 4 #define MIXED2H1V_BORDER 5 #define MIXED1H2V_BORDER 6 #define HANGING_BORDER 7 #define STANDUP_BORDER 8 /* buttons */ struct WBUTTON_STRUCT { struct WBUTTON_STRUCT *Bchain; /* next button */ int Bval; /* keyboard value */ unsigned int Brange; /* range scrollbars*/ char *Btext; /* display text */ unsigned char Bscrollval; /* screen value of scrollbar*/ unsigned char Blen; /* len+1 of text*/ unsigned char Bstyle; /* style flag */ unsigned char Bx; unsigned char By; unsigned char Bxend; unsigned char Byend; }; typedef struct WBUTTON_STRUCT WBUTTON; /* button flags specifiable by user when calling wbutton_add() */ #define WBTN_BOX 0x01 /* following button flags reserved for internal use. */ #define WBTN_ACTIVE 0x02 #define WBTN_SCROLL 0x04 #define WBTN_BUTTON 0x08 struct WHEAP_STRUCT { struct WHEAP_STRUCT *whp_next; /* linked lists of heap */ struct WHEAP_STRUCT *whp_prev; size_t whp_nb; /* number of bytes */ char whp_flag; /* type of heap element */ unsigned char whp_priority; /* priority */ /*---------- end of common part ---------- */ void far *whp_ram; /* where stored or accessed*/ /* double linked lists of disk blocks, * so we can find 'holes' for new allocations */ struct WHEAP_STRUCT *whp_dskhi; /* ptrs to lo/hi blocks */ struct WHEAP_STRUCT *whp_dsklo; unsigned long whp_position; /* position in disk */ int whp_handle; /* XMS handle */ int whp_npages; /* XMS number of pages */ /* for disk type storage: append (new block), update (old block), * or create (new file) */ char whp_typewrite; char whp_filler; /* alignment */ }; typedef struct WHEAP_STRUCT WHEAP; /* flag values for whx_flag...tells how this blobk is stored */ #define WHP_XMS 0x01 /* expanded memory */ #define WHP_RAM 0x02 /* DOS heap ( void far * ) */ #define WHP_DSK 0x04 /* disk file */ /* maximum allowable allocation by heap manager * this is 64k -16 bytes for DOS memory mgt info. */ #define WHEAP_MAX (65520u) /* priority for window save areas */ #define WIN_HP_PRIORITY 1 struct _WINDOW { struct _WINDOW *winchain; /* pointer to previous window */ WHEAP *winsave; /* restore screen contents area */ WBUTTON *winbutton; /* pointer to buttons, if any */ int winpxmax; /* size of window in pixels */ int winpymax; /* hihgest VALID pixel #s */ int winpx; /* last graphics pos. from wopen*/ int winpy; /* in window-viewport co-ords*/ unsigned char winpage; /* video page # = 0...wlastpage*/ unsigned char winputstyle; /* FLAGS see below */ unsigned char winleft; /* current window positon */ unsigned char wintop; unsigned char winxmax; /* highest valid column */ unsigned char winymax; /* highest valid row */ unsigned char winattr; /* text attribute */ unsigned char winx; /* current text postion */ unsigned char winy; /* range 0...winymax */ unsigned char winbox; /* style of border */ unsigned char winboxcolor; /* color of border */ unsigned char winflag; /* internal flag */ }; typedef struct _WINDOW WINDOW; /* put styles - flag values for winputstyle */ #define WPUTANSI 0x80 /* ON = use ANSI format codes * OFF= put IBM graphic chars instead */ #define WPUTWRAP 0x40 /* ON = wrap text to next line at End Of Line * OFF= truncate text, stop output */ #define WPUTSCROLL 0x20 /* ON = scroll window up one line * when text ouptut reaches bottom * OFF= halt text output at lower right char. */ #define WPUTN2RN 0x10 /* ON = translate \n into \r\n. (like ANSI C) * OFF= no carriage return. like TurboC cputs */ #define WPUTALARM 0x08 /* ON = sound alarm for \a. * OFF= no alarm. */ #define WPUTATTR 0x04 /* ON = char. following \a is an attribute * OFF= char following \a is an ordinary char * ONLY enabled if WPUTALARM is OFF */ #define WFL_CURSOR 0x80 /* ON = (text mode only) cursor is on. * OFF= cursor is off. * ONLY set by wcursor() routine. * DO NOT set this yourself. */ /* wlocation structure: */ struct WLOCATION { int wloc_x; /* x,y offsets from above location */ int wloc_y; char wloc_type; /* type of location desired - see defines */ char wloc_reserved; /* mainains word alignment */ }; #define WLOC_CENTER 0 #define WLOC_ATXY 1 #define WLOC_ATWIN 2 #define WLOC_ATCUR 3 /* MENUS */ struct WMENU_st { char *mu_entry; /*text for menu line */ void (*mu_func)(void); /* func to do */ char *mu_help; /*help */ struct WMENU_st *mu_menu; /*nested menu */ unsigned char *mu_enable; /*ptr to flag to enable this entry */ int mu_highlight; /*which letter (0-n) to highlight */ int mu_key; /*keypress to select this one */ }; typedef struct WMENU_st WMENU; /* FORMS */ struct WFORM_st { char *wflabel; /* identifying text */ void *wfuser; /* pointer to user data area */ char **wfpick; /* optional - pointer to picklist */ char *wformat; /* % format for printf/scanf */ /* the next entry is a user-supplied * field validation function */ int (*wfvalidate)(struct WFORM_st *, char *); unsigned char wflen; /* number of bytes incl. term. null*/ unsigned char wfspecial; /* internal - force WORD alignment */ unsigned char wfx; /* x,y co-ords of start of data item */ unsigned char wfy; }; typedef struct WFORM_st WFORM; /* automatic generation of entries for string, int, float data * assuming no user validation or pickllist functions * and default lengths for numeric data * * give user-friendly names to the data elements. * * _S = string data, _I = int data, _F = float data, * _DT = date, mm/dd/yy or mm/dd/yyyy MUST BE 11 bytes or more. * _TM = time, hh:mm:ss MUST BE 9 bytes or more. * * all that's left to specify is x,y */ #define WFORMENTRY_S(xx) #xx " ", xx, NULL, "%s", NULL, sizeof(xx), 0 #define WFORMENTRY_I(xx) #xx " ", &xx, NULL, "%i", NULL, 6, 0 #define WFORMENTRY_F(xx) #xx " ", &xx, NULL, "%f", NULL, 12, 0 #define WFORMENTRY_DT(xx) #xx " ", xx, NULL, "%s", wfvdate, sizeof(xx), 0 #define WFORMENTRY_TM(xx) #xx " ", xx, NULL, "%s", wfvtime, sizeof(xx), 0 #define WFORMENTRY_END() NULL, NULL, NULL, NULL,wfvall,0, 0 /* wmouse */ typedef struct _WMOUSE { int wms_xmickey, /* mouse position in mickeys (internal use)*/ wms_ymickey; int wms_px, wms_py; /* pixel coords relative to window */ int wms_pxabs, wms_pyabs; /* pixels in abs.screen coords*/ int wms_x, wms_y; /* text-based position in window */ int wms_xabs, wms_yabs; /* text-based absolute coords*/ /* mouse flags -- zero if false, non-zero if true. * * note: * wms_present: if non-zero, tells number of mouse buttons * wms_used: see defines below to tell how mouse was used * but you'll never see WMS_RIGHT_PRS because it's * changed to ESCAPE automatically. * * */ unsigned char wms_present, /* was a mouse detected */ wms_used, /* was mouse used since last call */ wms_inwindow, /* is mouse in current window */ wms_internal; /* internal use */ } WMOUSE; /* defined values for wmouse.wms_used */ /*------- recent button release ------*/ #define WMS_LEFT_RLS 0x01 #define WMS_CENTER_RLS 0x02 /*------ mouse mvt with Left or Center button held down --------*/ #define WMS_MOVED 0x04 /*------ recent button press --------*/ #define WMS_LEFT_PRS 0x08 #define WMS_CENTER_PRS 0x10 #define WMS_RIGHT_PRS 0x20 #define WMS_RIGHT_RLS 0x80 /* macro name table */ typedef char WMACRO_NAMES[10][9]; #ifdef __TURBOC__ /* mouse drawing */ typedef struct { char wdr_type; char wdr_filler; int wdr_linestyle; int wdr_thickness; int wdr_color; int wdr_x1, wdr_y1; /* start or center co-ords (@button press)*/ int wdr_x2, wdr_y2; /* end co-ords (@button release)*/ } WOBJECT_D_ART; #define WDR_LINE 'l' #define WDR_RECT 'r' #define WDR_XHAIR 'x' #define WDR_VERT 'v' #define WDR_HORZ 'h' #define WDR_SQUIGGLE 's' /* wdraw lets user draw an object, * returns a ptr to allocated struct WOBJECT_D_ART describing the object. * Not available in microsoft C version. */ WOBJECT_D_ART *wdraw ( char type, int color, int linestyle, int thickness ); #endif /* TurboC mouse drawing */ /*---------------------- global variables. -------------------------* * * NOTE: defined in order of alignment precedence. * so it doesn't matter if you compile with -a on or off * *------------------------------------------------------------------*/ extern WINDOW *(w0); extern WINDOW *(wfullscreen); extern char *whelp_ptr; extern int wtabwidth; /* default = 8 */ extern unsigned int wcurscanln; /* cursor size - internal use only */ /* screen size, in characters co=ords (even in graphics modes * the number of the first row/column is 0/0 * the number of the last row/column is wyabsmax /wxabsmax * loop control logic should be like this: * for (row=0; row <= wyabsmax; ++row) {process each row} * the actual screen size if wxabsmax+1 by wyabsmax+1. */ extern int wxabsmax, wyabsmax; /* graphics- specific values -- not used in text-mode functions. */ extern int wpxabsmax, wpyabsmax; /* number of pixels */ extern struct WLOCATION wlocation; extern WMOUSE wmouse; /* graphics * wpath_BGI = path name for BGI interface. Default is "C:\\TC" * change before calling winit() */ extern char *wpath_BGI; /* path to BGI drivers */ #define wpxchar 8 #define wpychar 8 extern char *whome_dir; /* 'HOME directory' * max bytes = MAXDRIVE+MAXPATH see dir.h */ extern char wmode; /* 'T' or 'G' */ extern char wmonitor; /* 'H' 'E' 'V' or 'C' */ /* page number * range is 0 thru wlastpage, inclusive. */ extern unsigned char wlastpage; /* constant set by winit() */ extern unsigned char wnextpage; /* change prior to wopen() */ extern unsigned char wneedpage; /* internal use only */ /* colors for menus, menu box, buttons... defaults noted below. */ extern unsigned char wmenuattr, /* GREEN */ wmenuboxattr, /* GREEN */ wbuttonattr, /* WHITE<<4 */ whelpattr; /* CYAN<<4 */ /* table of border characters. see defintion above */ extern const struct WBOX_PATTERN wbox[]; /* globals used by the wgetc() routines */ extern int wunget_buffer; extern int (*wkeytrap)( int ); extern int (*wpipein )( void ); extern void (*wpipeout)( int ); void winit ( char newmode ); /* newmode = 'W' or 'T' in caps */ void winit_pages ( char newmode ); int wdvinit (void); /* DeskView */ int w50line (int want_50); void wSysRq_install ( void (*u_func)() ); void wSysRq_remove ( void ); void wSysRq_ask (void); /* sample u_func */ int w_ega_color(void); /* ON = color, OFF=ega monochrome */ void wclockinstall (int x, int y); /* x,y = screen coords for clock */ void wclockremove (void); void wsetpalette ( unsigned char palette[17] ); void wgetpalette ( unsigned char palette[17] ); /* wopen, wdefine - x, y give top left corner. * xmax, ymax speicfy number of columns, rows needed * once window is opened, winxmax = 1 less than xmax * (coords start at 0) */ WINDOW *wopen (int x, int y, int xmax, int ymax, unsigned char attr, int box, unsigned char box_attr, unsigned char save2 ); /* save modes for wopen */ #define WSAVE2NULL 0 /* don't save window */ #define WSAVE2RAM 1 /* save to RAM */ #define WSAVE2DISK 2 /* save to disk */ WINDOW *wdefine (int x, int y, int xmax, int ymax, unsigned char attr, int box, unsigned char box_attr ); void wabandon (void); /* close window, no screen changes */ #define wclose() ( wrestore(), wabandon() ) /* restore screen, close */ /* wreopen, wbury - move specified window to top of stack * or move current window to bottom of stack * no screen access takes place. */ void wreopen ( WINDOW *Wnew ); void wbury ( void ); int wrelocate (int x, int y); /* returns 0 if OK */ #define wsetlocation(LOC, X, Y) \ wlocation.wloc_type=(LOC), \ wlocation.wloc_x =(X), \ wlocation.wloc_y =(Y) void wlocate ( int *addr_x, int *addr_y, int xmax, int ymax ); void wstrrowcol( char *text, int *rows, int *cols );/* #rows & cols in str*/ /* whide() and wshow() hide current window and show current window * PARAMETER to wshow = ptr returned by whide(). */ WHEAP *whide ( void ); void wshow ( WHEAP *hideptr ); void wframe (int l, int t, int r, int b, int style, unsigned char color); #define wtitle(title) wborderwrite ('t', 'c', (title)) #define wps(footnote) wborderwrite ('b', 'r', (footnote)) void wborderwrite (char line, char justify, char *title); /*! wsetvisualpage () or wturnpage() changes the displayed page. * does not change which page wputc/wputs etc write to... */ void wsetvisualpage (int page); #define wturnpage(newP) wsetvisualpage( (newP) ) /* wsave saves current contents of screen indicated by window pointer * and stores the far * pointer to the save area in winsave. * NOTE if w0->winsave is not NULL on entry, wsave will use that area. * to hold the screen image,without checking for area size. * * wrestore restores the screen underlying current window. * Does not free the storage. */ void wsave (void); void wrestore (void); /*! wdrag() move current window. * Parameter: keystroke = an ARROW key * RETURNS: non-zero (original keystroke) if move was successful. * 0 if move was not successful, which may be because: * invalid keystroke, outside screen edge, or WSAVE2NULL */ int wdrag (int keystroke); /* mouse keytraps call once at startup. */ void wmsdrag ( void ); void wmspopup ( int (*func)(void) ); void wpopfkey ( char **fkeylabels ); int wputc (char c); int wputs (char *s); void wputfl ( char *, int ); int wprintf (char *format, ...); #define WPRINTF_LIMIT 250 void werror (int errcode, char *errmsg); #define wsetattr(x) ( w0-> winattr = (x) ) #define wbright() ( w0-> winattr |= BRIGHT ) #define wdim() ( w0-> winattr &= (0xff - BRIGHT) ) #define wgetattr() ( w0-> winattr ) #define wreverseattr(xx) ( ( ((xx)&0x0f)<<4 ) | ( ((xx)&0xf0)>>4) ) void wclear (void); void wclearline (void); void wsetc ( char c ); #define wclearln() wclearline() void wscroll (void); /* insert a blank line at cur postion. scroll up */ /*! wgoto() to a specified row column. either x,y =-1 --- no mvt. */ void wgoto (int row, int col); #define wherex() ( w0-> winx ) #define wherey() ( w0-> winy ) int wgetc (void); int wgets (int nbytes, char *buffer, char behavior); /* gets behavior flags: _FORM entry, accept _INT only, accept _DEC pt * and auto-return when buffer filled */ #define WGETS_FORM 0x80 #define WGETS_INT 0x40 #define WGETS_DEC 0x20 #define WGETS_SKIP 0x10 #define WFM_AUTOSKIP 0x10 int wready(void); /* 0 if no user input avail (kbd or mouse) */ void wflush (void); /* flush kbd and mouse */ int wkbd_enhanced (void); /* RETURNS 0 if not an enhanced kbd */ void wcursor (int); /* ON or OFF, text mode only */ int wpipefin ( char *filename, void (*whendone)(void) ); void wpipefout ( char *filename, int stopcode ); void wmacro_install (void); int wmacro_select (char *message); WMACRO_NAMES *wmacro_names (void); void wmacro_assign (char *filename, int key); void wmouse_turn (int); /* ON/OFF, must use in pairs */ void wmouse_limit (int); /* ON/OFF limit mouse to window */ void wmouse_move ( int x, int y ); void wmouse_move_pixel ( int px, int py ); void wmouse_flush (void); /* wait until all keys RLS'd */ #define wpushc(xx) wunget_buffer = (xx) #define wungetc(xx) wunget_buffer = (xx) /*--------------------- 'BUTTON' functions -----------------------------* * * wbutton_add () * PARAMETERS: * char *text = text to place in button. * may be longer or shorter than button * int x, y = x,y position of button in open window. * int len = length of button, include terminal NULL. * int value = keyboard bvalue of button. * unsinged char style = WBTN_BOX to draw a box. * * RETURNS: void. * * OPTIONS for bstyle: * WBTN_BOX = draw a box around button * * wbutton_mark () - places a 'mark' to left of a button * * * wbutton_delete()- remove specified button. & redraw screen * PARAMETERS: * int value = keyboard value of button * int how = 0= clear screen area * wbutton_inactivate() - temporarily inactivate button. * PARAMETERS: * int value = button value * int how = 0= clear screen area * 1= rewrite text in current attr * wbutton_activate() - reactivate the button. and redraw in wbutton_attr * * wbutton_getptr() - returns ptr to button that matches a value * * wbutton_test() - returns button value or 0 if not a button * * */ void wbutton_add (char *btext, int bx, int by, int blen, int bval, unsigned char bstyle ); void wbutton_delete (int bval, int how); void wbutton_inactivate (int bval, int how); void wbutton_activate (int bval); void wbutton_mark ( int bval, char mark ); WBUTTON *wbutton_getptr ( int bval ); int wbutton_test ( int bval ); /* internal button functions */ void wbutton_draw ( WBUTTON *, unsigned char ); void wbutton_frame ( WBUTTON *, unsigned char , unsigned char ); /* SCROLL BAR functions. * use wscrollbar_add() to create a scrollbar. * CAUTIONS: y2-y1 must be >3. range >2. key must be untypable (-1,-2,etc) * when wgetc() returns the scrollbar_id_key, call wscrollbar_scroll(). * */ WBUTTON *wscrollbar_add ( int scrollbar_id_key, unsigned char x, unsigned char ytop, unsigned char ybottom, unsigned int virtual_range, unsigned int virtual_start ); void wscrollbar_draw ( WBUTTON *Bptr ); unsigned int wscrollbar_scroll ( WBUTTON *Bptr ); /*returns virtual_val */ void wscrollbar_reset ( WBUTTON *Bptr, unsigned int new_val ); /* wpromptc() - parms are: title, message, list of choices... * last parm in the choices list MUST be NULL */ int wpromptc(char *title, char *msg, ...); int wprompts ( char *title, char *msg, char *reply, int nbytes ); /* wpicklist() - parms are title and list of ptrs to strings. * RETURNS n= index to chosen string or index to terminal NULL */ int wpicklist ( char *title, char **list ); /*! wscanform() and wprintform() * PARAMS: a title and a pointer to a WFORM table. * RETURNS: ENTER or ESCAPE * * the last line terminates the table with a NULL in the wflabel position. * the last line also gives the xmax and ymax for the form window * (be sure to leave enough room for all data & text ) * * A validation function may be specified for the whole form. * If the validation function for the whole form returns non-zero, * no updating will take place. * * data items may be any type supported by printf/scanf * EXCEPT: longs, doubles, long doubles and pointers are NOT supported * variable lengths (%*i) is NOT supported. * item count reporting (%ni) is NOT supported. * * a picklist may be specified instead of hand-typed entry. * * a form item may be a 'pure label' ie, only the wflabel is printed, * ie, leave the wfuser field NULL. * * validation functions: Each entry in the WFORM table can call a function * The pointer to the function is specified in the 'wfvalidate' entry. * The function prototype MUST look like this: * int func_name (WFORM *form, char *buffer) * The function is called each time data is entered into the field. * Parameters passed to the function: * WFORM *form ptr to the WFORM entry for this filed. * char *buffer ptr to the string holding the new value * The string is AT MOST (form->wflen) bytes. * * should RETURN: 0 if the data is valid, non-zero if not valid. * The function may optionally communicate errors to the user. * * * * you must specify the length of a temporary work-area buffer * length must be enough to hold the data in string form with terminal 0 * length MUST include terminal NULL. * for string data, length is # bytes that will be returned, * incl. terminal NULL. * * the x,y positions for data items determine the screen start of the data * the label is placed before the data. * Be sure the label fits in the space you provided. * *CAUTION: data 'labels' should not be the first or last entry in the form tbl. * * wprintform() opens a window, draws the form, and leaves the window open * with data showing. No data entry or chages to data values occur. * */ int wscanform (char *title, WFORM *form); void wprintform (char *title, WFORM *form); extern char wfmatr_lbl, /* attr for labels */ wfmatr_lbl_active, /* label indicating active data item */ wfmatr_border, /* form border */ wfmatr_title, wfmatr_data, /* inactive data */ wfmatr_data_active;/* active data item (while typing) */ extern int wfm_border_type; /* DOUBLE BORDER */ extern char wfm_autoskip; /* next field when this on is filled in? */ /* default=0, or set to WFM_AUTOSKIP */ /* Tools for form validation functions * * When a form validation function (see above) is called, it is passed * a ptr to the form table for the current entry and a ptr to the char * * buffer holding the current value. * * Form validation functions may call the following sub-procedures * to simplify work. * * wform_showerror() - display an error msg undr the field * If NULL is passed, a standard error message is displayed. * The error msg must be 1 line and short enough to fit onscreen * (it is located starting below and to the left of the data) * * wfvall() - pass the start address of the form, and buffer. * This routine loops through all the fields and calls all * validation routines one at a time, keeping track of errors. * Use this function as all or part of the total form validation * (ie, name the function on the form header line) * * wfvdate() validates date data for forms */ void wform_showerror(WFORM *form, char *errmsg); int wfvall (WFORM *form, char *buffer); int wfvdate (WFORM *form, char *buffer); int wfvtime (WFORM *form, char *buffer); int wval_date ( char *date ); int wval_time ( char *time ); void wdtparse ( unsigned int *, char **, char ); /* internal */ /*! wfscanform() wfprintform() - file oriented form processing. * * * * wfscanform - * parse a file using the same form table as above. * one input item is looked for on each line of the file * doesn't matter if file is opened as text or binary (for wfscanform) * the order of the data items in the file doesn't matter * * scanning is continued until a line beginning with stopcode is reached * * validation functions are not called by wfscanform * * * wfprintform - * the data and labels are printed to a file, one line at a time * in the order of the table. * * */ void wfscanform ( FILE *infile, WFORM *formtable, char *stopcode ); void wfprintform (FILE *outfile, WFORM *formtable ); /* date and time processing * NOTE the buffer for dates must be mm/dd/yyyy = 11 bytes (with \0) * buffer for times must be hh:mm:ss = 9 bytes. */ time_t mktime ( struct tm * ); /* ANSI routine TurboC forgot * * WARNING - only returns timt_t, * does not modify struct values */ void wt2showt ( time_t *t, char *date, char *time ); void wshowt2t ( char *date, char *time, time_t *t ); void whotkey_install ( int hotkey_keyvalue, void (*hotkey_func)(void) ); void wpulldown ( WMENU *topmenu ); /* install topmenu */ void wpulldown_pages ( WMENU *topmenu ); /* use if mult video pages */ void wpulldown_draw ( void ); /* redraw top 2 lines */ extern int wpulldown_enable; /* 0=turns off menu default=1*/ /* install hep system. specify filename without the .hlp and .hx extensions */ void whelp_install(char *filename); void wdos (void); /* not avail in graphics mode */ void wexit (void); /* ask user if exit desired */ WINDOW *wunlink (void); void wlink (WINDOW *Wnew); /*--------- memory mgt routines ---------------*/ /* wmalloc & wfarmalloc & wrealloc - ptr is NORMALIZED * if errmsg is not NULL, and no mem avail, prog halts. * NOTE: in models with far data ptrs, wmalloc maps to wfarmalloc. * MICROSOFT C warning: YOU MUST DEFINE __LARGE__ (or others as needed) * or your programs will not link in large model. */ void *wmalloc ( size_t size, char *errmsg ); #ifdef __LARGE__ #define wmalloc(x,y) wfarmalloc ( (x), (y) ) #endif #ifdef __COMPACT__ #define wmalloc(x,y) wfarmalloc ( (x), (y) ) #endif #ifdef __HUGE__ #define wmalloc(x,y) wfarmalloc ( (x), (y) ) #endif void far *wfarmalloc ( unsigned long nbytes, char *errmsg ); void *wrealloc ( void *block, size_t size, char *errmsg ); extern unsigned long wheap_ramlimit; /* default = 256k */ /* this is max amount of ram used by heap manager */ void wheap_init ( void ); WHEAP *wheap_alloc (size_t numbytes, unsigned char priority, char *errmsg ); /* priority=0 = lowest (always on disk), * 1-254 = intermediated (wherever it fits) * 255 = highest (never on disk). * If not enough, lower priority items are swapped. * errmsg = NULL, control returned to caller if error * = string, program halts & errmsg printed. * string should be <12 bytes. * */ void far *wheap_access ( WHEAP *heap_ptr, int readwrite ); void wheap_deaccess ( WHEAP *heap_ptr, int readwrite ); /* if readwrite is 0, no access to disk takes place */ void wheap_free ( WHEAP * ); unsigned long wheap_avail ( void ); /* total ram+xms */ unsigned long wheap_availxms ( void ); void wheap_swap2dsk ( WHEAP * ); void wheap_swapall2dsk ( int priority ); /* all of this priority*/ void far *wheap_unlink ( WHEAP * ); /* swaps from expanded or disk storage to main ram. * removes control block from heap manager. * * returned address can be released by farfree() * (free() if LARGE) */ void wheap_freeall ( void ); void whplj_dump ( FILE * ); /* laserjet screen dump */ void whplj_install ( int key ); /*-------------------------- WINDOW INTERNALS ----------------------* */ extern unsigned char far *wvideo_ram; extern unsigned char far *wpage_ram; extern unsigned int wpage_size; extern char wega256; extern int wegarowsize; /* bytes per graphics row */ #ifdef __WSCREEN__ #ifdef TEXTONLY #define whifont +++(errorw_hifont_reserved_symbol) #define wlofont +++(errorw_lofont_reserved_symbol) #else /* not TEXTONLY */ /* graphics mode globals */ extern unsigned char whifont[8*128]; extern unsigned char wlofont[8*32]; #endif /* TEXTONLY */ #else /* WSCREEN not defined */ /* definitions to prevent referencing the font tables */ #define whifont +++(errorw_hifont_reserved_symbol) #define wlofont +++(errorw_lofont_reserved_symbol) #endif /* __WSCREEN__ */ char w_inDOS (void); void wgetmon (void); void wputcabs ( int x, int y, unsigned char c, unsigned char attr, unsigned char write_mode ); #define WGOVERWRITE 0x00 #define WGXOR 0x18 #define WGOR 0x10 #define WGAND 0x08 void wgscrollv ( int l, int t, int r, int b, int nr ); /* nr = pixels, +=down -=up */ void wclearabs (int left, int t, int r, int b ); int wreadc (void); int wread_kbd (void); int wready_kbd (void); void wflush_kbd (void); void wkbd_init (void); void wmouse_init (void); void wmouse_location (void); void wmouse_textmask (unsigned int screen, unsigned int cursor); /* BGI interface */ void walign (int current_page); void wmovepxpy (void); void wherepxpy (void); void wtextmode (void); void wgraphmode (void); #ifdef __cplusplus } #endif /* c++ */ #endif /* end of WTWG_HEADER */