在ncurses的鼠标移动事件 [英] Mouse movement events in NCurses

问题描述

我不知道是否有这样的事情在ncurses的鼠标移动事件，如果有一种方法来抓住他们。继用鼠标的接口（从 ncurses的编程HOWTO ）看来，通过启用 REPORT_MOUSE_POSITION 在调用位 mousemask ，人们确实可以捕获鼠标移动事件。

I wonder if there is such a thing as mouse movement events in NCurses, and if there is a way to catch them. Following the Interfacing with the mouse (from the NCurses programming HOWTO) it seems that by enabling the REPORT_MOUSE_POSITION bit in the call to mousemask, one can indeed catch mouse movement events.

所以，我试过了，它似乎并没有工作。我有这样的事情：

So, I tried that and it does not seem to work. I have something like this:

int ch, count=0;
mmask_t old;

initscr ();
noecho ();
cbreak ();
mousemask (ALL_MOUSE_EVENTS | REPORT_MOUSE_POSITION, &old);
keypad (stdscr, TRUE);

while ((ch = getchar ()) != 'q')
{
  count++;
  if (ch == KEY_MOUSE)
  {
     MEVENT event;
     assert (getmouse (&event) == OK);
     mvprintw (0, 0, "Mouse Event!\n");
  }
  mvprintw (1, 1, "Event number %4d",count);
}

...

我预计我会提出我的鼠标光标，我会看到事件计数器增加。但事实并非如此。我也试着移动它，而鼠标按键1，要看看是否会产生拖事件，也没有做任何事情。现在的问题是，如果它只是我的终端仿真程序的问题？或者，也许我误解了什么NCURSES认为是鼠标移动事件？收到所有其他鼠标事件（我可以在使用鼠标的操作控制台程序）。

I expected that as I'll move my mouse cursor, I'll see the event counter increasing. But it didn't. I also tried moving it while mouse button 1 is down to see if generates "drag" events, and it also didn't do anything. The question is, if it's simply a problem of my terminal emulator? Or maybe I'm misunderstanding what NCurses considers as mouse movement events? All the other mouse events were received (and I can operate programs in the console that use the mouse).

我试过的gnome-terminal，xterm中，和一些其他的东西。我也要去TTY我的Linux机器的公司（Fedora的15，按Ctrl + Alt + F2）尝试文本环境（不带X），并没有工作。

I tried gnome-terminal, xterm, and some other stuff. I also tried a textual environment (without X) by going to the tty's of my linux machine (Fedora 15, Ctrl+Alt+F2) and that did not work.

最后，假设我得到这个权利，这些事件应该报告，什么是 MEVENT bstate 字段C>的鼠标移动evenet？

Finally, assuming I do get this right and those events should be reported, what is the bstate field of a MEVENT for a mouse movement evenet?

提前感谢！

推荐答案

您需要：

1. 支持鼠标事件报告的终端;


2. $ TERM 指向其中有一个相应的 XM 进入正确初始化终端的terminfo项。

1. a terminal which supports mouse event reporting;
2. $TERM pointing to a terminfo entry which has an appropriate XM entry to initialise the terminal correctly.

的xterm 至少满足（1）;对于（2），很可能是你需要设置 TERM 不同的值。

xterm at least satisfies (1); for (2), it's likely that you'll need to set a different value for TERM.

尝试：

• TERM = xterm的-1002 时，当一个按钮被按下光标移动到不同的细胞获得位置的事件;或


• TERM = xterm的-1003 来始终获得位置的事件，只要将光标移动到不同的细胞，即使没有按钮是pressed。

• TERM=xterm-1002 to get a position event when the cursor moves to a different cell while a button is being held down; or
• TERM=xterm-1003 to always get a position event whenever the cursor moves to a different cell, even if no button is pressed.

产生的事件具有 REPORT_MOUSE_POSITION 位置上的 bstate 字段。

The resulting events have the REPORT_MOUSE_POSITION bit set on the bstate field.

（将便携性的 的curs_mouse节（3次） 手册页介绍了终端初始化和的Xterm控制的鼠标跟踪部分序列文档描述了相关的私密模式扩展名）。

(The "PORTABILITY" section of the curs_mouse(3x) man page describes the terminal initialisation, and the "Mouse Tracking" section of the Xterm Control Sequences documentation describes the relevant "private mode" extensions.)

这是你上面给出的code需要使用残培（），而不是的getchar（）;并且需要刷新（）循环里面！除此之外，它为我的作品与的xterm 时使用合适的名词之一设置。

The code that you've given above needs to use getch(), not getchar(); and needs a refresh() inside the loop! Other than that, it works for me with xterm when using one of the appropriate TERM settings.

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