使用退格的NCurses
你好,我有这个代码,退格是不正常工作使用退格的NCurses,c,ncurses,curses,getch,C,Ncurses,Curses,Getch,你好,我有这个代码,退格是不正常工作 while((ch=getch())!='\n') { ++counter; noecho(); if (ch == KEY_BACKSPACE || ch == KEY_DC || ch == 127) { counter--; delch(); delch(); input[counter] = '\0'; } else { add
while((ch=getch())!='\n') {
++counter;
noecho();
if (ch == KEY_BACKSPACE || ch == KEY_DC || ch == 127) {
counter--;
delch();
delch();
input[counter] = '\0';
} else
{
addch(ch);
}
refresh();
退格字符未出现,这正是我想要的,但操作未完成如果在getch调用之前启用echo,ncurses可能返回ASCII退格,例如,8与\b相同。中提到的Solaris兼容性功能:
/*
* If echo() is in effect, display the printable version of the
* key on the screen. Carriage return and backspace are treated
* specially by Solaris curses:
*
* If carriage return is defined as a function key in the
* terminfo, e.g., kent, then Solaris may return either ^J (or ^M
* if nonl() is set) or KEY_ENTER depending on the echo() mode.
* We echo before translating carriage return based on nonl(),
* since the visual result simply moves the cursor to column 0.
*
* Backspace is a different matter. Solaris curses does not
* translate it to KEY_BACKSPACE if kbs=^H. This does not depend
* on the stty modes, but appears to be a hardcoded special case.
* This is a difference from ncurses, which uses the terminfo entry.
* However, we provide the same visual result as Solaris, moving the
* cursor to the left.
*/
if (sp->_echo && !(win->_flags & _ISPAD)) {
chtype backup = (chtype) ((ch == KEY_BACKSPACE) ? '\b' : ch);
if (backup < KEY_MIN)
wechochar(win, backup);
}
另一种可能性是,终端描述terminfo可能与实际终端设置stty不一致。在这种情况下,ncurses将返回发送的任何密钥,它是ASCII DEL/127还是BS/8取决于您使用的系统。您是否调用了keypadstdscr,对吗?是的,我调用了它,声明为int?是的,声明为int