staging.inyokaproject.org

root@X8:/# gcc 1.c -o 1
/usr/bin/ld: /tmp/ccVdfG5s.o: in function `main':
1.c:(.text+0x2a): undefined reference to `XOpenDisplay'
/usr/bin/ld: 1.c:(.text+0x45): undefined reference to `XScreenSaverQueryExtension'
/usr/bin/ld: 1.c:(.text+0x82): undefined reference to `XScreenSaverQueryInfo'
collect2: error: ld returned 1 exit status
root@X8:/# cat /usr/include/X11/extensions/scrnsaver.h | grep XOpenDisplay
root@X8:/# 

#include <stdio.h>
#include <X11/Xlib.h>
#include <X11/extensions/scrnsaver.h>

/* Report amount of X server idle time. */
/* Build with- */
/* cc xidle.c -o xidle -lX11 -lXext -lXss */


int main(int argc, char *argv[])
{
    Display *display;
    int event_base, error_base;
    XScreenSaverInfo info;
    float seconds;

    display = XOpenDisplay("");

    if (XScreenSaverQueryExtension(display, &event_base, &error_base)) {
	XScreenSaverQueryInfo(display, DefaultRootWindow(display), &info);

	seconds = (float)info.idle/1000.0f;
	printf("%f\n",seconds);
	return(0);
    }
    else {
	fprintf(stderr,"Error: XScreenSaver Extension not present\n");
	return(1);
    }
}

/*
 *
Copyright (c) 1992  X Consortium

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of the X Consortium shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from the X Consortium.
 *
 * Author:  Keith Packard, MIT X Consortium
 */

#ifndef _SCRNSAVER_H_
#define _SCRNSAVER_H_

#include <X11/Xfuncproto.h>
#include <X11/Xlib.h>
#include <X11/extensions/saver.h>

typedef struct {
    int type;               /* of event */
    unsigned long serial;   /* # of last request processed by server */
    Bool send_event;        /* true if this came frome a SendEvent request */
    Display *display;       /* Display the event was read from */
    Window window;          /* screen saver window */
    Window root;            /* root window of event screen */
    int state;              /* ScreenSaverOff, ScreenSaverOn, ScreenSaverCycle*/
    int kind;               /* ScreenSaverBlanked, ...Internal, ...External */
    Bool forced;            /* extents of new region */
    Time time;              /* event timestamp */
} XScreenSaverNotifyEvent;

typedef struct {
    Window  window;         /* screen saver window - may not exist */
    int     state;          /* ScreenSaverOff, ScreenSaverOn, ScreenSaverDisabled*/
    int     kind;           /* ScreenSaverBlanked, ...Internal, ...External */
    unsigned long    til_or_since;   /* time til or since screen saver */
    unsigned long    idle;          /* total time since last user input */
    unsigned long   eventMask; /* currently selected events for this client */
} XScreenSaverInfo;

_XFUNCPROTOBEGIN

extern Bool XScreenSaverQueryExtension (
    Display*    /* display */,
    int*        /* event_base */,
    int*        /* error_base */
);

extern Status XScreenSaverQueryVersion (
    Display*    /* display */,
    int*        /* major_version */,
    int*        /* minor_version */
);

extern XScreenSaverInfo *XScreenSaverAllocInfo (
    void
);

extern Status XScreenSaverQueryInfo (
    Display*            /* display */,
    Drawable            /* drawable */,
    XScreenSaverInfo*   /* info */
);

extern void XScreenSaverSelectInput (
    Display*    /* display */,
    Drawable    /* drawable */,
    unsigned long   /* eventMask */
);

extern void XScreenSaverSetAttributes (
    Display*                /* display */,
    Drawable                /* drawable */,
    int                     /* x */,
    int                     /* y */,
    unsigned int            /* width */,
    unsigned int            /* height */,
    unsigned int            /* border_width */,
    int                     /* depth */,
    unsigned int            /* class */,
    Visual *                /* visual */,
    unsigned long           /* valuemask */,
    XSetWindowAttributes *  /* attributes */
);

extern void XScreenSaverUnsetAttributes (
    Display*    /* display */,
    Drawable    /* drawable */
);

extern Status XScreenSaverRegister (
    Display*    /* display */,
    int         /* screen */,
    XID         /* xid */,
    Atom        /* type */
);

extern Status XScreenSaverUnregister (
    Display*    /* display */,
    int         /* screen */
);

extern Status XScreenSaverGetRegistered (
    Display*    /* display */,
    int         /* screen */,
    XID*        /* xid */,
    Atom*       /* type */
);

extern void XScreenSaverSuspend (
    Display*    /* display */,
    Bool        /* suspend */
);

_XFUNCPROTOEND

#endif /* _SCRNSAVER_H_ */

root@X8:/# qdbus org.gnome.ScreenSaver / GetSessionIdleTime
qdbus: could not find a Qt installation of ''
root@X8:/# qdbus org.freedesktop.ScreenSaver / GetSessionIdleTime
qdbus: could not find a Qt installation of ''

# Code in xidle.c speichern
gcc xidle.c -o xidle -lX11 -lXext -lXss 

root@X8:/# sleep 5s ; ./xidle 
4.927000
root@X8:/# sleep 5s ; ./xidle 
3.814000
root@X8:/# sleep 5s ; ./xidle 
2.694000

12:03:30 - 3.879000
12:03:40 - 4.148000
12:03:50 - 4.180000
12:04:00 - 4.207000
12:04:10 - 4.201000
12:04:20 - 4.230000
12:04:30 - 4.290000
12:04:40 - 4.286000
12:04:50 - 4.316000
12:05:00 - 4.348000
12:05:10 - 4.358000
12:05:20 - 4.418000
12:05:30 - 4.414000
12:05:40 - 4.442000
12:05:50 - 4.472000
12:06:00 - 4.499000
12:06:10 - 4.528000
12:06:20 - 4.562000
12:06:30 - 4.595000
12:06:40 - 4.657000
12:06:50 - 4.685000
12:07:00 - 4.694000
12:07:11 - 4.686000
12:07:21 - 4.749000
12:07:31 - 4.780000
12:07:41 - 4.809000
12:07:51 - 4.833000
12:08:01 - 4.861000
12:08:11 - 4.891000
12:08:21 - 4.886000
12:08:31 - 4.914000