Re: [dev] How to monitor battery status

On Mon, Jun 20, 2011 at 12:17:58PM +0200, Stefan Mark wrote:
> On 20.06.2011 11:59, ilf wrote:
> > On 06-19 22:55, Erik Hahn wrote:
> >> http://dwm.suckless.org/scripts/simple_monitors
> >
> > I have done this the /proc/acpi/battery/BAT0/state | shell way for years
> > and found it to be way more resource intense then calling acpi -b.
> >
> > Let's face it, the Shell/Perl/Python/whatever scripting is relatively
> > easy, but very inefficient.
> >

This program allows me to put 'whatever I can create on stdout' to the statusbar

#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdlib.h>
#include <stdio.h>

#include <X11/Xlib.h>

int main (int argc, char *argv[]) {
        int ret;
        Display *dpy;
        Window root;
        const char *display;
        char *line = 0;
        size_t size = 0;

        /* open display */
        display = getenv("DISPLAY") ?: ":0";
        dpy = XOpenDisplay(display);
        if (!dpy) {
                fprintf(stderr, "Unable to open display '%s'\n", display);
                exit(1);
        }
        root = RootWindow(dpy, DefaultScreen(dpy));

        while (1) {
                ret = getline(&line, &size, stdin);
                if (ret < 0)
                        break;
                XStoreName(dpy, root, line);
                XSync(dpy, False);
        }
        return 0;
}
Received on Mon Jun 20 2011 - 13:25:50 CEST