widgets on bottom

[kernel_panic]

how can i set widgets on the bottom on desktop?
not on top, under all other windows. on linux

and if it somebody knows, how can i get the desktop wallet?

or how can i grab a virtual Desktop, which only has the desktop wallet?

[jpn]

how can i set widgets on the bottom on desktop?
not on top, under all other windows. on linux

Try _NET_WM_STATE_BELOW.

[kernel_panic]

how can i use this with Qt? with python.

[jpn]

I can't say about Python but in C++ you could do something like this:

#include <QApplication>
#include <QWidget>
#include <QX11Info>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
 
int main(int argc, char* argv[])
{
    QApplication a(argc, argv);
    QWidget widget;
    widget.setWindowTitle("Bottom");
    widget.show();
 
    Display* display = QX11Info::display();
    Atom state = XInternAtom(display, "_NET_WM_STATE", True);
    Atom below = XInternAtom(display, "_NET_WM_STATE_BELOW", True);
 
    XEvent event;
    event.xclient.type = ClientMessage;
    event.xclient.message_type = state;
    event.xclient.display = display;
    event.xclient.window = widget.winId();
    event.xclient.format = 32;
    event.xclient.data.l[0] = 1; // turn on
    event.xclient.data.l[1] = below;
    event.xclient.data.l[2] = 0l;
    event.xclient.data.l[3] = 0l;
    event.xclient.data.l[4] = 0l;
    XSendEvent(display, QX11Info::appRootWindow(), False, 
               (SubstructureRedirectMask | SubstructureNotifyMask), &event);
 
    return a.exec();
}

#include <QApplication>
#include <QWidget>
#include <QX11Info>
#include <X11/Xatom.h>
#include <X11/Xlib.h>

int main(int argc, char* argv[])
{
    QApplication a(argc, argv);
    QWidget widget;
    widget.setWindowTitle("Bottom");
    widget.show();

    Display* display = QX11Info::display();
    Atom state = XInternAtom(display, "_NET_WM_STATE", True);
    Atom below = XInternAtom(display, "_NET_WM_STATE_BELOW", True);

    XEvent event;
    event.xclient.type = ClientMessage;
    event.xclient.message_type = state;
    event.xclient.display = display;
    event.xclient.window = widget.winId();
    event.xclient.format = 32;
    event.xclient.data.l[0] = 1; // turn on
    event.xclient.data.l[1] = below;
    event.xclient.data.l[2] = 0l;
    event.xclient.data.l[3] = 0l;
    event.xclient.data.l[4] = 0l;
    XSendEvent(display, QX11Info::appRootWindow(), False, 
               (SubstructureRedirectMask | SubstructureNotifyMask), &event);

    return a.exec();
}

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[GuS]

Hi!

Could someone translate this to PyQt?

Thanks in advance.


Cheers.

[jpn]

I'm no python-xlib export but here's something that should get you pretty close

import sys
from PyQt4 import QtGui
from Xlib import X, display, protocol
 
app = QtGui.QApplication(sys.argv)
widget = QtGui.QWidget()
widget.setWindowTitle("Bottom")
widget.show()
 
disp  = display.Display()
state = disp.intern_atom("_NET_WM_STATE")
below = disp.intern_atom("_NET_WM_STATE_BELOW")
data  = [1, below, 0, 0, 0]
event = protocol.event.ClientMessage(
    window = widget.winId(),
    client_type = state,
    data = (32, data))
disp.send_event(disp.screen().root, event,
    (X.SubstructureRedirectMask | X.SubstructureNotifyMask))
 
sys.exit(app.exec_())

import sys
from PyQt4 import QtGui
from Xlib import X, display, protocol

app = QtGui.QApplication(sys.argv)
widget = QtGui.QWidget()
widget.setWindowTitle("Bottom")
widget.show()

disp  = display.Display()
state = disp.intern_atom("_NET_WM_STATE")
below = disp.intern_atom("_NET_WM_STATE_BELOW")
data  = [1, below, 0, 0, 0]
event = protocol.event.ClientMessage(
    window = widget.winId(),
    client_type = state,
    data = (32, data))
disp.send_event(disp.screen().root, event,
    (X.SubstructureRedirectMask | X.SubstructureNotifyMask))

sys.exit(app.exec_())

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[GuS]

Hi!!

First thanks to translate it to Python language.
Second, this code does absolutely nothing, but if i change the import Xlib line as:

from Xlib import X
from Xlib.protocol import display
from Xlib.protocol.request import *

I get this error:

state = display.intern_atom("_NET_WM_STATE")
AttributeError: Display instance has no attribute 'intern_atom'

My code:

if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
app.setQuitOnLastWindowClosed(False)
mainApp = OpenCoffee_Client()
mainApp.show()

## Colocamos la aplicación por debajo de las demás ventanas y eliminamos la entrada en el taskbar.
## Para esto es necesario usar las caracterÃ*sticas del servidor X, importando la librerÃ*a xlib de python.
## TODO: seguir trabajando en esto
display = display.Display(":0")
state = display.intern_atom("_NET_WM_STATE")
placeBelow = display.intern_atom("_NET_WM_STATE_BELOW")
hideTaskbar = display.intern_atom("_NET_WM_STATE_SKIP_TASKBAR")
data = [1, placeBelow, hideTaskbar, 0, 0]
event = protocol.event.ClientMessage(window = mainApp.winId(), client_type = state, data = (32, data))
disp.send_event(disp.screen().root, event, (X.SubstructureRedirectMask | X.SubstructureNotifyMask))

sys.exit(app.exec_())

Just in case, the full code is in here: http://opencoffee.lnxteam.org/trac/b...ncoffee-client