自学教程：C++ wherex函数代码示例

int main() {    clrscr();    bordercolor(0);    bgcolor(6);    renderMenu(100);    textcolor(7);    gotoxy(0, 1);    updateStatus(' ');    cursor(1);    while(1) {        char c;/*        uint8_t row;        uint8_t col;        for (row = 0;  row < 16;  row++) {            gotoxy(0, row + 3);            cprintf("%3d ", row * 16);            for (col = 0;  col < 16;  col++) {                cputc(row * 16 + col);                cputc(' ');            }        }*/        c = cgetc();        if (c == 20) {            // backspace        } else if (c == 13) {            // Return        } else if (c == 157) {            // Left            uint8_t xpos = wherex() - 1;            gotox(xpos);        } else if (c == 29) {            // Right            uint8_t xpos = wherex() + 1;            gotox(xpos);        } else if (c == 17) {            // Down            uint8_t ypos = wherey() + 1;            gotoy(ypos);        } else if (c == 145) {            // Up            uint8_t ypos = wherey() - 1;            gotoy(ypos);        } else if (c == 19) {            // Pos1        } else if (c == 3) {            // ESC -> Menu            processMenu();        } else {            cputc(c);        }                        updateStatus(c);    }}

void erase_backward(uint8_t count){    cclear(1); /* Erase cursor */    gotox(wherex() - (count + 1));    cclear(count);    gotox(wherex() - count);}

/*-----------------------------------------------------------------------------------*/voidctk_draw_menus(struct ctk_menus *menus){  struct ctk_menu *m;  /* Draw menus */  (void)textcolor(MENUCOLOR);  gotoxy(0, 0);  revers(1);  cputc(' ');  for(m = menus->menus->next; m != NULL; m = m->next) {    draw_menu(m, m == menus->open);  }  /* Draw desktopmenu */  if(wherex() + strlen(menus->desktopmenu->title) + 1 >= sizex) {    gotoxy(sizex - (unsigned char)strlen(menus->desktopmenu->title) - 1, 0);  } else {    cclear(sizex - wherex() -	   (unsigned char)strlen(menus->desktopmenu->title) - 1);  }  draw_menu(menus->desktopmenu, menus->desktopmenu == menus->open);  revers(0);}

void Mlecz::rysowanie(){	int x = wherex();	int y = wherey();	gotoxy(this->x, this->y);	cputs("M");	gotoxy(x, y);}

void screen_draw_border(char *help_msg){    int px, py;    int i, msg_len;    trim(help_msg);    px = wherex(); py = wherey();    gotoxy(0, 0);    for (i = 0;i <= WIN_WIDTH;i++)        cprintf("%c", BORDER_HOR);    for (i = 1;i < WIN_HEIGHT;i++) {        gotoxy(0, i);        cprintf("%c", BORDER_VER);        gotoxy(WIN_WIDTH, i);        cprintf("%c", BORDER_VER);    }    gotoxy(0, WIN_HEIGHT);    for (msg_len = strlen(help_msg), i = 0;i < (WIN_WIDTH - msg_len) / 2;i++)        cprintf("%c", BORDER_HOR);    cprintf("%s", help_msg);    for (i += msg_len;i <= WIN_WIDTH;i++)        cprintf("%c", BORDER_HOR);    gotoxy(px, py);}

void Zolw::rysowanie(){	int x = wherex();	int y = wherey();	gotoxy(this->x, this->y);	cputs("Z");	gotoxy(x, y);}

void renderMenu(uint8_t current) {    uint8_t idx = 0;    textcolor(1);    revers(1);    gotoxy(0, 0);    for (idx = 0;  idx < menuSize;  idx++) {        if (idx == current) {            textcolor(3);            cputs(menu[idx]);                        /*****************/            cputsxy(0, 1, "/xf0/xc0/xc0/xc0/xc0/xee");            gotoxy(0, 2);            cprintf("/xdd%s/xdd", fileMenu[0]);            gotoxy(0, 3);            cprintf("/xdd%s/xdd", fileMenu[1]);            gotoxy(0, 4);            cprintf("/xdd%s/xdd", fileMenu[2]);            gotoxy(0, 5);            cprintf("/xdd%s/xdd", fileMenu[3]);            cputsxy(0, 6, "/xed/xc0/xc0/xc0/xc0/xfd");            /*****************/                    } else {            cputs(menu[idx]);        }        textcolor(1);        cputs("  ");    }    for (idx = wherex();  idx < 40;  idx++) {        cputc(' ');    }}

void drawchatwin(box_t *boxch, char* topname, char* botname) {	struct text_info ti;	int	i;	_wscroll=0;	gettextinfo(&ti);	textcolor(WHITE);	textbackground(BLACK);	clrscr();	uwin.top=1;	uwin.left=1;	uwin.right=ti.screenwidth;	uwin.bottom=ti.screenheight/2-1;	uwin.colour=GREEN;	swin.top=ti.screenheight/2+1;	swin.left=1;	swin.right=ti.screenwidth;	swin.bottom=ti.screenheight;	swin.colour=LIGHTGREEN;	gotoxy(1,ti.screenheight/2);	putch(196);	putch(196);	putch(196);	putch(196);	putch(180);	cputs(topname);	putch(195);	for(i=wherex();i<=ti.screenwidth;i++)		putch(196);	_wscroll=1;}

	void ATCInput::Echo (char *Msg)	{		SelectScreen();		gotoxy (CrntColumn_c, INPUT_LINE);		cprintf(Msg);		CrntColumn_c = wherex();	}

Boolean aceptar_cancelar(){ int  i = 0, lasti = 0, key, fila = wherey(), x = wherex(); char *buttons[] = {" Aceptar ", " Cancelar "}; gotoxy(x + 1, fila); cputs(" Aceptar  Cancelar "); gotoxy(x + calculate_xpos(buttons, i), fila); marcar_texto(buttons[i], strlen(buttons[i])); msg_snd(); do{  key = bioskey(0);  if((key & SC_IZQ) == SC_IZQ){   i--;   if((i>=0)&&(i<=1))JVGtecla();  }  if((key & SC_DER) == SC_DER){   i++;   if((i>=0)&&(i<=1))JVGtecla();  }  if(i >= 2)  i = 1;  if(i < 0) i = 0;  gotoxy(x + calculate_xpos(buttons, lasti), fila);  desmarcar_texto(buttons[lasti], strlen(buttons[lasti]));  gotoxy(x + calculate_xpos(buttons, i), fila);  marcar_texto(buttons[i], strlen(buttons[i]));  lasti = i; }while(((key & SC_ENTER)!= SC_ENTER) && ((key & SC_ABAJO) != SC_ABAJO)); gotoxy(x + calculate_xpos(buttons, i), fila); desmarcar_texto(buttons[i], strlen(buttons[i])); _setcursortype(_NORMALCURSOR); if(i == 0) return Verdadero; return Falso;}

/* * get_input_terminated_by() reads input (handling backspace correctly) until * a terminator of |terminators| is encountered or |out| is full (outlen-1 * characters were read). * * get_input_terminated_by() returns the terminator it encountered. * */input_terminator_t get_input_terminated_by(input_terminator_mask_t terminators, char *out, BYTE outlen) {	BYTE i = strlen(out);	BYTE c, x, y;	x = wherex() - i;	y = wherey();	while (1) {		c = cgetc();		if (((terminators & INPUT_TERMINATOR_RETURN) == INPUT_TERMINATOR_RETURN) && (c == PETSCII_CR)) {			return INPUT_TERMINATOR_RETURN;		} else if (((terminators & INPUT_TERMINATOR_SPACE) == INPUT_TERMINATOR_SPACE) && (c == PETSCII_SP)) {			return INPUT_TERMINATOR_SPACE;		} else if (c == PETSCII_DEL) {			/* If you are at the left-most position, do nothing */			if (i == 0)				continue;			out[--i] = '/0';			cputcxy(x+i, y, ' ');			gotoxy(x+i, y);			continue;		}		if (i == (outlen-1)) {			continue;		}		cputc(c);		out[i++] = c;	}}

void Guarana::rysowanie(){	int x = wherex();	int y = wherey();	gotoxy(this->x, this->y);	cputs("G");	gotoxy(x, y);}

unsigned int _8254CounterIEN(unsigned Base, unsigned irq, unsigned F96,int df){  unsigned int CBase;  int t;  ADDRESS = Base;  CBase = Base + 0x10;  if(F96==1){      flag2 = 1;          //for setcountflag isr      CtrMode(CBase,0,2);      CtrLoad(CBase,0,0x10);  }  do{    CtrMode(CBase,1,2);    CtrLoad(CBase,1,0x10);    CtrMode(CBase,2,2);    CtrLoad(CBase,2,0x10);    initirq(irq,setcountflag);    outportb(Base+0x0E,0x02);//enable COUNTER IRQ on PCIe-DIO-24DCS    if(F96==1){      outportb(Base+0x1E, 0x00); //enable interrupt for dio-96CT      outportb(Base+0x1F, 0x00); //clear interrupt latch for dio-96CT    }    outportb(Base+0xF, 0x00);    // clear interrupt latch for dio-24    isrflag = 0;    outportb(0x20, 0x20);    outportb(0xA0, 0x20);    delay(1000);    outportb(Base+0xD, 0x00);    // turn off interrupt for dio-24    outportb(Base+0x0f, 0);      // clear left over IRQs    if(F96==1)      outportb(Base+0x1E, 0x00); //disable interrupt for dio-96CT    outportb(0x20, 0x20);    outportb(0xA0, 0x20);    restoreirq(irq);    t = isrflag;    textcolor(t?GREEN:RED);    cprintf("%s",t?"IRQ    ":"NoIRQ    ");    if((80 - wherex()) < 10)      gotoxy(1,wherey());    t = 0;  }while((!kbhit()) && (df)); //exit after running once if !Debug mode  if (df) {    getch();    printf("/n");  }  if(F96==1){    CtrMode(CBase,0,2);          //stop counters counting    CtrMode(CBase,1,2);    CtrMode(CBase,2,2);    outportb(Base+0x1E,0x00); //disable interrupt for dio-96CT  }  if (isrflag)    return 0;  else    return 1;}

void gettextinfo(struct text_info *info) {	info->curx = wherex();	info->cury = wherey();	info->attribute = thData.attrib;	info->normattr = 0x07;	info->screenwidth = thData.width;	info->screenheight = thData.height;};

/*---------------------------------------------------------------------*Name            gettextinfo - give the user information on video mode,                              window coordinates and video attributesUsage           #include <conio.h>                void gettextinfo(struct text_info *r);Prototype in    conio.hDescription     fills the text_info structure with the current video                information.Return value    NoneNOTE: text_info structure is partial prefix of _video structure*---------------------------------------------------------------------*/void gettextinfo(struct text_info *r){        *r = *(struct text_info *)& _video;     /* move data all at once */        r->winleft      += 1;                   /* 1,1 origin */        r->wintop       += 1;        r->winright     += 1;        r->winbottom    += 1;        r->curx = wherex();        r->cury = wherey();}

void GetCurs(int *x, int *y){#ifdef UNIX    getsyx(*y, *x);#else    /* X and Y are zero-based */    *x = wherex() - 1;    *y = wherey() - 1;#endif}

void save_curs(POINT * p){    ////fn void save_curs(POINT * p)    ////brief Salvarea pozitiei cursorului.    ////param p Variabila tip POINT care stocheaza pozitia cursorului    ///    ///Implementarea salvarii pozitiei cursorului.    p->x = wherex();    p->y = wherey();}

static char Input (char* Prompt, char* Buf, unsigned char Count)/* Read input from the user, return 1 on success, 0 if aborted */{    int Frame;    unsigned char OldColor;    unsigned char OldCursor;    unsigned char x1;    unsigned char i;    unsigned char done;    char c;    /* Clear the current prompt line */    cclearxy (0, MAX_Y-1, MAX_X);    /* Display the new prompt */    OldColor = textcolor (COLOR_TEXTHIGH);    cputsxy (0, MAX_Y-1, Prompt);    (void) textcolor (COLOR_TEXTLOW);    /* Remember where we are, enable the cursor */    x1 = wherex ();    OldCursor = cursor (1);    /* Get input and handle it */    i = done = 0;    do {        c = cgetc ();        if (isalnum (c) && i < Count) {            Buf [i] = c;            cputcxy (x1 + i, MAX_Y-1, c);            ++i;        } else if (i > 0 && c == CH_DEL) {            --i;            cputcxy (x1 + i, MAX_Y-1, ' ');            gotoxy (x1 + i, MAX_Y-1);        } else if (c == '/n') {            Buf [i] = '/0';            done = 1;        } else if (IsAbortKey (c)) {            /* Abort */            done = 2;        }    } while (!done);    /* Reset settings, display old prompt line */    cursor (OldCursor);    (void) textcolor (OldColor);    DrawFrames ();    Frame = ActiveFrame;    ActiveFrame = -1;    ActivateFrame (Frame, 0);    return (done == 1);}

int LireNbreFilmValide(void) {    int NbrFilms;    cout << "Nombre de film lou/x82s (1 /x85 3) : ";    int CurrX = wherex();    int CurrY = wherey();    do {        gotoxy(CurrX,CurrY);        NbrFilms = ConvertireUnCharEnInt(_getche());    } while(NbrFilms > 3 || NbrFilms < 1);    return NbrFilms;}

void Screen::myCprintf( uint8_t attr, char *fmt, ... ) {    int x = wherex( );    int y = wherey( );    va_list ap;    va_start( ap, fmt );    myCprintf_internal( x, y, attr, fmt, ap );    va_end( ap );}

int chatchar(WINDOW *win, int ch) {	window(win->left,win->top,win->right,win->bottom);	gotoxy(win->x,win->y);	textcolor(win->colour);	putch(ch);	if(ch=='/r')		putch('/n');	win->x=wherex();	win->y=wherey();	return(0);}

void clreol (void){    int X, Y;    char Spaces[100];    memset (Spaces, ' ', sizeof (Spaces));    X = wherex ();    Y = wherey ();    Spaces[80-X] = 0;    printf ("%s", Spaces);    gotoxy (X, Y);}

/* Output a vertical line with the given length at the current cursor * position. */void __fastcall__ cvline( unsigned char length ){	// FIXME: Optimize me.	unsigned char x = wherex();	unsigned char y = wherey();	unsigned char i;	for( i=0; i<length; i++ )	{		gotoxy( x, y+i );		cputc( 1 );	}}

static voiddraw_menu(struct ctk_menu *m, unsigned char open){  unsigned char x, x2, y;  if(open) {    x = x2 = wherex();    if(x2 + CTK_CONF_MENUWIDTH > sizex) {      x2 = sizex - CTK_CONF_MENUWIDTH;    }    for(y = 0; y < m->nitems; ++y) {      if(y == m->active) {	(void)textcolor(ACTIVEMENUITEMCOLOR);	revers(0);      } else {	(void)textcolor(MENUCOLOR);	  	revers(1);      }      gotoxy(x2, y + 1);      if(m->items[y].title[0] == '-') {	chline(CTK_CONF_MENUWIDTH);      } else {	cputs(m->items[y].title);      }      if(x2 + CTK_CONF_MENUWIDTH > wherex()) {	cclear(x2 + CTK_CONF_MENUWIDTH - wherex());      }    }    gotoxy(x, 0);    (void)textcolor(OPENMENUCOLOR);    revers(0);  }  cputs(m->title);  cputc(' ');  (void)textcolor(MENUCOLOR);  revers(1);}

void GetPass (char *Pass, int Len){        int     index = 0;        WORD    x,y;	// Get the y co-ordinate        y = wherey ();        do           {                // get the current x co-ordinate				x = wherex ();                		// get the next character from the input buffer		Pass [index] = (char) getch ();				// if its an enter, terminate the string                if (Pass [index] == 0x0D)                        Pass [index] = '/0';				// if its a delete move the cursor back, and remove the last character from the string                else if (Pass [index] == 0x08)                {                        if (index-1 >= 0)                        {                                index -= 2;                                				// blank out the last *				gotoxy ((WORD) (x-1), y);                                putch (' ');                                gotoxy ((WORD) (x-1), y);                        }                        else                         {                                index = -1;                        }                }                else			// display a * for the character                        putch ('*');				// move to the next character in the array                index++;        } while (Pass [index-1] && index < Len);        	// apply a newline character if needed	if (Pass [index-1])                Pass [index-1] = NULL;        putch ('/n');}

/* move cursor back one char with ** recognition of row change*/   void chBack(void){    signed char x, y;        x = wherex();    y = wherey();        x-=1;    if (x < 0) {        x=39;        y-=1;    }    gotoxy(x,y);}

void main (void){    int linha, coluna;    clrscr ();    cprintf ("Esta e a linha 1/r/n");    cprintf ("A linha 2 e um pouco mais longa/r/n");    cprintf ("Esta e a ultima linha");    linha = wherey();    coluna = wherex ();    cprintf ("/r/nA posicao do cursor era linha %d coluna %d/n", linha, coluna);}

/*-----------------------------------------------------------------------------------*/static voiddraw_menu(struct ctk_menu *m){  unsigned char x, x2, y;  textcolor(VNC_OUT_MENUCOLOR);  x = wherex();  cputs(m->title);  cputc(' ');  x2 = wherex();  if(x + CTK_CONF_MENUWIDTH > sizex) {    x = sizex - CTK_CONF_MENUWIDTH;  }      for(y = 0; y < m->nitems; ++y) {    if(y == m->active) {      textcolor(VNC_OUT_ACTIVEMENUCOLOR);      revers(0);    } else {      textcolor(VNC_OUT_MENUCOLOR);	      }    gotoxy(x, y + 1);    if(m->items[y].title[0] == '-') {      chline(CTK_CONF_MENUWIDTH);    } else {      cputs(m->items[y].title);    }    if(x + CTK_CONF_MENUWIDTH > wherex()) {      cclear(x + CTK_CONF_MENUWIDTH - wherex());    }    revers(1);  }    gotoxy(x2, 0);  textcolor(VNC_OUT_MENUCOLOR);    update_area(x, 0, CTK_CONF_MENUWIDTH, m->nitems + 1);}

void updateStatus(uint8_t c) {    uint8_t xpos = wherex();    uint8_t ypos = wherey();    gotoxy(0, 24);    textcolor(1);    revers(1);    cprintf("Ln: %-2d Col: %-2d  %3d   INS               ", ypos, xpos, c);    textcolor(7);    revers(0);    gotoxy(xpos, ypos);}

/* move cursor forth one char with ** recognition of row change*/void chForth(void){    signed char x, y;        x = wherex();    y = wherey();        x+=1;    if (x >= 40) {        x=0;        y+=1;    }    gotoxy(x,y);}