ncurses

问题 This question already has answers here : How to avoid pressing enter with getchar() (11 answers) Closed 3 years ago . I'm writing a C program that prints something on terminal using ncurses. It should stop printing when user press 's' and continue again when press 's'. How can I read a key from input without waiting user to press the key? I tried getch() and getchar() but they wait until a key is pressed... Edit This is my code: int main(void) { initscr(); /* Start curses mode */ refresh(); /

问题 I am using Anaconda to manage my R-installation. It works great for packages available in the R-channels provided by Anaconda, but I am having troubles installing packages not contained in the Anaconda repos. I have tried a few different approaches, all listed below together with their error output. 1. install.packages('rafalib') Suggested to work here conda - How to install R packages that are not available in "R-essentials"?. My .libPaths() points to '/home/user/anaconda2/lib/R/library' .

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . I need to use NCurses, with Perl. I found some very short bits of text about it but no example at all. Is there anyone aware of any

问题 I am drawing a TUI using ncurses. The trouble is that whenever my program gets seg-fault, my terminal is left in mess. I can not see what I am typing. Its a pain since I am working over ssh. I have mitigated some of the effect by using screen. I would like to know if there is a command which will refresh my terminal after seg-fault in ncurses so that my terminal starts behaving normally. 回答1: Command, stty sane^J did the job. UPDATE: On some terminals stty sane also works. 回答2: ncurses (any

问题 I have the following piece of extremely simple code, which is supposed to output (amongst other things), three unicode characters: /* * To build: * gcc -o curses curses.c -lncursesw * * Expected result: display these chars: * http://www.fileformat.info/info/unicode/char/2603/index.htm (snowman) * http://www.fileformat.info/info/unicode/char/26c4/index.htm (snowman without snow) * http://www.fileformat.info/info/unicode/char/1f638/index.htm (grinning cat face with smiling eyes) * * Looks like

问题 Is there a way to check which char is at a given position in the console window? For example if I want to check if there's an asterisk (*) at position (10, 12), how do I do that? Or if I use move(10, 12); , how do I check which char is at the current cursor position? I'm using PDCurses. 回答1: The inch family of functions should do that: chtype inch(void); chtype winch(WINDOW *win); chtype mvinch(int y, int x); chtype mvwinch(WINDOW *win, int y, int x); 来源： https://stackoverflow.com/questions

问题 I have a small ncurse program I'm running, but the output doesn't seem to show up unless I stick the wrefresh() in a while loop. Is there some buffering going on or something? I tried other refresh functions in the library and fflush with stddout (which I don't think makes sense, but worth a try), but nothing seems to work. A second small question: to make getch() non-blocking we need to call nodelay(win,TRUE) , right? void main() { initscr(); start_color(); init_pair(1,COLOR_YELLOW,COLOR

问题 There are several libraries like ncurses that assist in making command-line GUIs. Simply put, how do they work? My first thought was that ncurses intercepts all keyboard input, and draws each "frame" by outputting it line-by-line normally. Closer inspection, however, reveals that each new frame overwrites the previous one. How does it modify lines that have already been outputted? Furthermore, how does it handle color? EDIT: The same question applies to anything with a "fancy" interface, like

问题 I installed Cygwin, choosing a fairly minimal set of packages. In a terminal, I tried to do 'clear' to clear the terminal, but I get bash: clear: command not found How do I get this to work? 回答1: Install the Cygwin package ncurses ; it is in the Utils category. 回答2: This should do: alias clear='printf "\033c"' 回答3: just use this shortcut: Alt+F8 and Ctrl-L to skip page 回答4: It's nice to have the clear.exe program for bash script files, so: Windows Cygwin detail for clear.exe program command.

问题 Is there a way to use ANSI escape codes inside mvwprintw ? mvwprintw(window, 0, 0,"%c[%dmCOLORED_TEXT!\n", 0x1B, 32);//doesn't work even though: printf("%c[%dmCOLORED_TEXT\n", 0x1B, 32); //works This would be for cases where using wattron / wattroff is not convenient; for example, when redirecting output from stdout of a process that outputs such escape codes. 回答1: No. The only way to make that work would be to parse the string yourself, turning escape codes back into the appropriate curses