[dev] xid of a current window
How can I get a xid of a focused window? Like with xprop, but without user interaction. Say, I want to write an program that would log the xid of a currently focused window every second. Sincerely, s.
Re: [dev] xid of a current window
On 25 March 2012 13:37, Swiatoslaw Gal wrote: > How can I get a xid of a focused window? Like with xprop, but > without user interaction. Say, I want to write an program > that would log the xid of a currently focused window every second. http://tronche.com/gui/x/xlib/input/XGetInputFocus.html Cheers, Anselm
Re: [dev] xid of a current window
On 25 March 2012 12:42, Anselm R Garbe wrote: > http://tronche.com/gui/x/xlib/input/XGetInputFocus.html Note that a Window is an integer, specifically the window's XID. cls
Re: [dev] xid of a current window
if you don't want to write something of your own, then $ xprop -root _NET_ACTIVE_WINDOW > _NET_ACTIVE_WINDOW(WINDOW): window id # 0x400050 or $ xdotool getactivewindow > 4194384 will work, as long as your wm supports and correctly sets _NET_ACTIVE_WINDOW note that xdotool outputs the id as an int, to get the same with xprop do something like: $ xprop -root _NET_ACTIVE_WINDOW | cut -d# -f2 | xargs printf "%d\n" > 4194384 some apps work with both formats, others require int xwininfo can also give you the window id, and with -int it will be in int form. On 25/03/2012, Connor Lane Smith wrote: > On 25 March 2012 12:42, Anselm R Garbe wrote: >> http://tronche.com/gui/x/xlib/input/XGetInputFocus.html > > Note that a Window is an integer, specifically the window's XID. > > cls > > -- *Ivan c00kiemon5ter V Kanakarakis *
Re: [dev] xid of a current window
-- From Ivan Kanakarakis 25-03-2012 at 15:20 -- > if you don't want to write something of your own, then > > $ xprop -root _NET_ACTIVE_WINDOW > > _NET_ACTIVE_WINDOW(WINDOW): window id # 0x400050 xprop -root shows me the values of the folowing fields: CUT_BUFFER0(STRING) WM_NAME(STRING) _NET_SUPPORTED(ATOM) ESETROOT_PMAP_ID(PIXMAP) _XROOTPMAP_ID(PIXMAP) RESOURCE_MANAGER(STRING) _XKB_RULES_NAMES(STRING) XFree86_VT(INTEGER) XFree86_DDC_EDID1_RAWDATA(INTEGER) > $ xdotool getactivewindow XGetWindowProperty[_NET_ACTIVE_WINDOW] failed (code=1) xdo_get_active_window reported an error > will work, as long as your wm supports and correctly sets _NET_ACTIVE_WINDOW I assume that this is not the case. I am using dwm. Does it matter? s.
Re: [dev] xid of a current window
A quick look into the tip of dwm, shows that it is the case for dwm. It doesn't set the _NET_ACTIVE_WINDOW property correctly, although the atom is there, and included in _NET_SUPPORTED. To fix that, one must call (supposing c is the Client that holds the current window) : XChangeProperty(dpy, root, netatom[NetActiveWindow], XA_WINDOW, 32, PropModeReplace, (unsigned char*)&c->window, 1); everytime the current window changes. also one should delete the property if there is no active window (either no window on the screen, or no window focused) On 25/03/2012, Swiatoslaw Gal wrote: > -- From Ivan Kanakarakis 25-03-2012 at 15:20 -- >> if you don't want to write something of your own, then >> >> $ xprop -root _NET_ACTIVE_WINDOW >> > _NET_ACTIVE_WINDOW(WINDOW): window id # 0x400050 > > xprop -root shows me the values of the folowing fields: > CUT_BUFFER0(STRING) > WM_NAME(STRING) > _NET_SUPPORTED(ATOM) > ESETROOT_PMAP_ID(PIXMAP) > _XROOTPMAP_ID(PIXMAP) > RESOURCE_MANAGER(STRING) > _XKB_RULES_NAMES(STRING) > XFree86_VT(INTEGER) > XFree86_DDC_EDID1_RAWDATA(INTEGER) > >> $ xdotool getactivewindow > XGetWindowProperty[_NET_ACTIVE_WINDOW] failed (code=1) > xdo_get_active_window reported an error > >> will work, as long as your wm supports and correctly sets >> _NET_ACTIVE_WINDOW > I assume that this is not the case. > I am using dwm. Does it matter? > > s. > > -- *Ivan c00kiemon5ter V Kanakarakis *
Re: [dev] xid of a current window
On Sun, Mar 25, 2012 at 04:33:23PM +0300, Ivan Kanakarakis wrote:
> A quick look into the tip of dwm, shows that it is the case for dwm.
> It doesn't set the _NET_ACTIVE_WINDOW property correctly,
> although the atom is there, and included in _NET_SUPPORTED.
>
> To fix that, one must call (supposing c is
> the Client that holds the current window) :
>
> XChangeProperty(dpy, root, netatom[NetActiveWindow], XA_WINDOW,
> 32, PropModeReplace, (unsigned char*)&c->window, 1);
>
> everytime the current window changes.
> also one should delete the property if there is no active window
> (either no window on the screen, or no window focused)
Attached is a patch which does that. It works for me.
If you want support for NetActiveWindow, you probably also want support
for NetClientList. The second patch implements that.
Andreas
# HG changeset patch
# Parent bbfe55c2f7562ea3e428d4c7cbd1d8da0c32f02f
diff --git a/dwm.c b/dwm.c
--- a/dwm.c
+++ b/dwm.c
@@ -499,6 +500,7 @@
cleanupmon(mons);
XSync(dpy, False);
XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
+ XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
}
void
@@ -858,8 +860,10 @@
XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
setfocus(c);
}
- else
+ else {
XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+ XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
+ }
selmon->sel = c;
drawbars();
}
@@ -1520,8 +1526,12 @@
void
setfocus(Client *c) {
- if(!c->neverfocus)
+ if(!c->neverfocus) {
XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
+ XChangeProperty(dpy, root, netatom[NetActiveWindow],
+ XA_WINDOW, 32, PropModeReplace,
+ (unsigned char *) &(c->win), 1);
+ }
sendevent(c, wmatom[WMTakeFocus]);
}
@@ -1777,8 +1789,10 @@
return;
grabbuttons(c, False);
XSetWindowBorder(dpy, c->win, dc.norm[ColBorder]);
- if(setfocus)
+ if(setfocus) {
XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
+ XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
+ }
}
void
# HG changeset patch
# Parent bbfe55c2f7562ea3e428d4c7cbd1d8da0c32f02f
diff --git a/dwm.c b/dwm.c
--- a/dwm.c
+++ b/dwm.c
@@ -60,7 +60,7 @@
enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
enum { NetSupported, NetWMName, NetWMState,
NetWMFullscreen, NetActiveWindow, NetWMWindowType,
- NetWMWindowTypeDialog, NetLast }; /* EWMH atoms */
+ NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms
*/
enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
@@ -238,6 +238,7 @@
static Bool updategeom(void);
static void updatebarpos(Monitor *m);
static void updatebars(void);
+static void updateclientlist(void);
static void updatenumlockmask(void);
static void updatesizehints(Client *c);
static void updatestatus(void);
@@ -1157,6 +1161,8 @@
XRaiseWindow(dpy, c->win);
attach(c);
attachstack(c);
+ XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32,
PropModeAppend,
+ (unsigned char *) &(c->win), 1);
XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /*
some windows require this */
setclientstate(c, NormalState);
if (c->mon == selmon)
@@ -1607,6 +1617,7 @@
netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN",
False);
netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE",
False);
netatom[NetWMWindowTypeDialog] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_DIALOG", False);
+ netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
/* init cursors */
cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
@@ -1629,6 +1640,7 @@
/* EWMH support per view */
XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
PropModeReplace, (unsigned char *) netatom, NetLast);
+ XDeleteProperty(dpy, root, netatom[NetClientList]);
/* select for events */
wa.cursor = cursor[CurNormal];
wa.event_mask =
SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask|PointerMotionMask
@@ -1802,6 +1816,7 @@
}
free(c);
focus(NULL);
+ updateclientlist();
arrange(m);
}
@@ -1848,6 +1863,19 @@
m->by = -bh;
}
+void
+updateclientlist() {
+ Client *c;
+ Monitor *m;
+
+ XDeleteProperty(dpy, root, netatom[NetClientList]);
+
Re: [dev] xid of a current window
On 25 March 2012 15:56, Andreas Amann wrote: > Attached is a patch which does that. It works for me. > > If you want support for NetActiveWindow, you probably also want support > for NetClientList. The second patch implements that. Thanks, I applied both patches. Even though I really more and more hat this whole EWMH cruft. Since there was basic EWMH support in dwm, things became more unreadable... Cheers, Anselm
Re: [dev] xid of a current window
> Thanks, I applied both patches. Even though I really more and more hat > this whole EWMH cruft. Since there was basic EWMH support in dwm, > things became more unreadable... Then I start to feel guilty of my question. I've got my answer, and I do not know if anyone really needs _NET_WM_WINDOW_OPACITY to be handled by dwm. Thank you for the answers anyway, s.
Re: [dev] xid of a current window
On Sun, 25 Mar 2012, Swiatoslaw Gal wrote: -- From Ivan Kanakarakis 25-03-2012 at 15:20 -- $ xdotool getactivewindow XGetWindowProperty[_NET_ACTIVE_WINDOW] failed (code=1) xdo_get_active_window reported an error You could use the focused window instead (which was what you originally asked about): $ xdotool getwindowfocus 48234505 dwm doesn't (or didn't? - depending on today's patches) set _NET_ACTIVE_WINDOW, but there's still a focused window. -- Best, Ben
Re: [dev] xid of a current window
> You could use the focused window instead (which was what you > originally asked about): > > $ xdotool getwindowfocus > 48234505 Yes, this works fine (without any today's patches). But the very first answer: XGetInputFocus was _exactly_ what I was looking for. Is there a reason that a _window_manager_ provides EHWHMS... whatever support? This can be done with an external program, am I wrong? s.
Re: [dev] xid of a current window
On Sun, Mar 25, 2012 at 07:47:36PM +0200, Swiatoslaw Gal wrote: > > You could use the focused window instead (which was what you > > originally asked about): > > > > $ xdotool getwindowfocus > > 48234505 > > Yes, this works fine (without any today's patches). > But the very first answer: XGetInputFocus was _exactly_ > what I was looking for. > > Is there a reason that a _window_manager_ provides EHWHMS... > whatever support? This can be done with an external program, > am I wrong? The reason why I wrote these patches was that external programs do not work reliably without support from the WM. In particular "xdotool getwindowfocus" is quite frustrating. See also the "xdotool" manpage itself: "getactivewindow: Output the current active window. This command is often more reliable than getwindowfocus." Apart from that I agree with Anselm that EWMH is a pain... Andreas
