ncurses.h，wprintw 不起作用，即使在刷新后也是如此

Question

我正在使用库 ncurses，当我尝试调用 wprintw()，然后在右侧 window 执行 wrefresh 时，它没有打印任何内容。

#include <stdio.h>
#include <stdlib.h>
#include <ncurses.h>

int main()
{
    WINDOW *winTest; //The window
    int rows, cols; //Rows and colums in the terminal

    initscr(); //Starting NCurses
    raw(); //Calling 'getch()' doesn't wait for '\n' 
    noecho(); //Doesn't print what's written by user
    curs_set(0); //Doesn't display the cursor

    getmaxyx(stdscr, rows, cols); //How many rows and colums in stdscr (the terminal)

    winTest = newwin(10, 10, rows/2, cols/2); //Creates a square WINDOW at the center of the terminal

    mvwprintw(winTest, 0, 0, "Test"); //Prints "Test" on the created window

    wrefresh(winTest); //Refreshes so what's done is displayed
    getch(); //Pause

    delwin(winTest); //Free the memory for winTest
    endwin(); //Ends NCurses
    return 0;
}

当我执行这个时，没有任何显示。

我在 Ubuntu 14.04 LTS，我用 gcc 编译：

gcc -g -Wall -Werror -Wpedantic -Wextra -Wformat -o test.exe test.c -lncurses

然后我在 gnome-terminal 中执行。

Answer 1

如here所述，您应该替换：

getch();

作者：

wgetch(winTest);

Answer 2

I replaced the second pause, getch() with my own pause function: scanf("%*s"); and then it displayed test in the middle like it was supposed to. I think what was happening is it went through both pauses in one go so that you never saw the "Test" because it was deleted as fast as it was created. – Tony Ruth

感谢 Tony Ruth 回答了我的问题。即使我仍然不明白为什么 getch() 会删除所写的内容，但将其替换为 scanf("%*s") 就可以了！

PS：不知道如何判断这个问题已经解决了：/

编辑：您也可以在任何 window 上调用 'wgetch(aWindow)'，每个 windows 都将正确显示 :)（感谢告诉它的 Ruud）

ncurses.h，wprintw 不起作用，即使在刷新后也是如此

ncurses.h, wprintw doesn't work, even after refresh

c

window

ncurses