66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/* Public Domain Curses */
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#include <curspriv.h>
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RCSID("$Id: beep.c,v 1.34 2008/07/13 16:08:17 wmcbrine Exp $")
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/*man-start**************************************************************
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Name: beep
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Synopsis:
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int beep(void);
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int flash(void);
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Description:
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beep() sounds the audible bell on the terminal, if possible;
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if not, it calls flash().
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flash() "flashes" the screen, by inverting the foreground and
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background of every cell, pausing, and then restoring the
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original attributes.
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Return Value:
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These functions return OK.
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Portability X/Open BSD SYS V
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beep Y Y Y
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flash Y Y Y
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**man-end****************************************************************/
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int beep(void)
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{
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PDC_LOG(("beep() - called\n"));
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if (SP->audible)
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PDC_beep();
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else
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flash();
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return OK;
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}
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int flash(void)
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{
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int z, y, x;
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PDC_LOG(("flash() - called\n"));
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/* Reverse each cell; wait; restore the screen */
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for (z = 0; z < 2; z++)
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{
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for (y = 0; y < LINES; y++)
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for (x = 0; x < COLS; x++)
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curscr->_y[y][x] ^= A_REVERSE;
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wrefresh(curscr);
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if (!z)
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napms(50);
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}
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return OK;
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}
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