Hi,
On Wed, 2010-05-12 at 07:39 +0200, ext Pallavi Kandhare wrote:
..
> 2. On mobile certain aplications are running at a time. (ed. clock,
calender etc). How
> can i find out and list all these applications.
There is nothing very convenient for this but you can do it using the
same API as the window manager (hildon-desktop) uses: XQueryTree and
reading some window properties with XGetWindowProperty. You could get a
some kind of list by taking top-level (== parent is the root window)
windows that have _NET_WM_WINDOW_TYPE property set to
_NET_WM_WINDOW_TYPE_NORMAL.
I'm attaching the source code of a small utility that uses XQueryTree,
you could use it as a starting point.
-Kimmo
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static Atom class_atom, name_atom, name_atom2, xembed_atom, pid_atom,
trans_atom, hildon_stack_atom,
utf8_string_atom,
current_app_atom, win_type_atom, wm_state_atom, theme_atom,
portrait_support, portrait_request, non_comp_atom;
static char *get_atom_prop(Display *dpy, Window w, Atom atom)
{
Atom type;
int format, rc;
unsigned long items;
unsigned long left;
Atom *value;
char *copy;
rc = XGetWindowProperty (dpy, w, atom, 0, 1, False,
XA_ATOM, &type, &format,
&items, &left, (unsigned char**)&value);
if (type != XA_ATOM || format == 0 || rc != Success) {
copy = strdup("");
} else {
char *s = XGetAtomName(dpy, *value);
copy = strdup(s);
XFree(s);
}
return copy;
}
static Window get_win_prop(Display *dpy, Window w, Atom atom)
{
Atom type;
int format, rc;
unsigned long items;
unsigned long left;
Window *value;
rc = XGetWindowProperty (dpy, w, atom, 0, 1, False,
XA_WINDOW, &type, &format,
&items, &left, (unsigned char**)&value);
if (type == None || rc != Success)
return 0;
else
{
return *value;
}
}
static unsigned long get_card_prop(Display *dpy, Window w, Atom atom)
{
Atom type;
int format, rc;
unsigned long items;
unsigned long left;
unsigned long *value;
rc = XGetWindowProperty (dpy, w, atom, 0, 1, False,
XA_CARDINAL, &type, &format,
&items, &left, (unsigned char**)&value);
if (type == None || rc != Success)
return 0;
else
{
return *value;
}
}
static long get_int_prop(Display *dpy, Window w, Atom atom)
{
Atom type;
int format, rc;
unsigned long items;
unsigned long left;
unsigned long *value;
rc = XGetWindowProperty (dpy, w, atom, 0, 1, False,
XA_INTEGER, &type, &format,
&items, &left, (unsigned char**)&value);
if (type == None || rc != Success)
return -1;
else
{
return *value;
}
}
static long get_xembed_prop(Display *dpy, Window w)
{
Atom type;
int format, rc;
unsigned long items;
unsigned long left;
unsigned long *value;
rc = XGetWindowProperty (dpy, w, xembed_atom, 0, 2, False,
XA_CARDINAL, &type, &format,
&items, &left, (unsigned char**)&value);
if (type == None || rc != Success)
return -1;
else
{
long ret;
ret = value[1] & (1 << 0);
XFree(value);
return ret;
}
}
static char *get_str_prop(Display *dpy, Window w, Atom atom)
{
Atom type;
int format, rc;
unsigned long items;
unsigned long left;
char *value;
rc = XGetWindowProperty (dpy, w, atom, 0, 200, False,
XA_STRING, &type, &format,
&items, &left, (unsigned char**)&value);
if (type == None || rc != Success)
return NULL;
else
{
char *s = strdup((const char*)value);
XFree(value);
return s;
}
}
static char *get_utf8_prop(Display *dpy, Window w, Atom atom)
{
Atom type;
int format, rc;
unsigned long items;
unsigned long left;
char *value;
rc = XGetWindowProperty (dpy, w, atom, 0, 200, False,
utf8_string_atom, &type, &format,
&items, &left, (unsigned char**)&value);
if (type == None || rc != Success)
return NULL;
else
{
char *s = strdup((const char*)value);
XFree(value);
return s;
}
}
static const char *get_map_state(int state)
{
switch (state) {
case IsUnmapped:
return "IsUnmapped";
case IsUnviewable:
return "IsUnviewable";
case IsViewable:
return "IsViewable";
default:
return "";
}
}
static void print_children(Display *dpy, Window w, int level)
{
unsigned int n_children = 0;
Window *child_l = NULL;
Window root_ret, parent_ret;
int i;
char *wmclass, *wmname, *wmname2, *wmtype, *wmstate;
unsigned long por_sup, por_req;
Window trans_for;
char buf[100], xembed_buf[50];
XWindowAttributes attrs = { 0 };
long xembed, hildon_stack, non_comp;
XQueryTree(dpy, w, &root_ret, &parent_ret, &child_l, &n_children);
if (level > 0)
for (i = 0; i < level; ++i)
printf(" ");
else {
printf("The root (cur. app. 0x%lx, theme %s) ",
get_win_prop(dpy, w, current_app_atom),
get_str_prop(dpy, w, theme_atom));
}
wmclass = get_str_prop(dpy, w, class_atom);
wmname = get_utf8_prop(dpy, w, name_atom);
wmname2 = get_str_prop(dpy, w, name_atom2);
wmtype = get_atom_prop(dpy, w, win_type_atom);
wmstate = get_atom_prop(dpy, w, wm_state_atom);
por_sup = get_card_prop(dpy, w, portrait_support);
por_req = get_card_prop(dpy, w, portrait_request);
trans_for = get_win_prop(dpy, w, trans_atom);
hildon_stack = get_int_prop(dpy, w, hildon_stack_atom);
non_comp = get_int_prop(dpy, w, non_comp_atom);
XGetWindowAttributes(dpy, w, &attrs);
if (trans_for)
snprintf(buf, 100, "(transient for 0x%lx)", trans_for);
else
buf[0] = '\0';
xembed = get_xembed_prop(dpy, w);
if (xembed != -1)
snprintf(xembed_buf, 50, "(XEmbed %ld)", xembed);
else
xembed_buf[0] = '\0';
if (n_children == 0)
{
printf("0x%lx %s %s %s HStack:%ld [PID %lu] WM_CLASS:%s WM_NAME:%s "
"_NET_WM_NAME:%s %s %s %s %s %s %s %s %s\n",
w, wmtype,
wmstate, get_map_state(attrs.map_state),
hildon_stack,
get_card_prop(dpy, w, pid_atom),
wmclass ? wmclass : "(none)",
wmname2 ? wmname2 : "(none)",
wmname ? wmname : "(none)",
xembed_buf,
buf, attrs.override_redirect ? "override-redirect": "",
attrs.all_event_masks & SubstructureRedirectMask ?
"Substr.Redirect":"",
attrs.all_event_masks & SubstructureNotifyMask ?
"Substr.Notify":"",
por_sup ? "por.sup":"",
por_req ? "por.req":"",
non_comp != -1 ? "non-comp.":"");
} else {
printf("0x%lx %s %s %s HStack:%ld [PID %lu] WM_CLASS:%s WM_NAME:%s "
"_NET_WM_NAME:%s %s %s %s %s %s %s %s %s (%u children):\n",
w, wmtype, wmstate, get_map_state(attrs.map_state),
hildon_stack,
get_card_prop(dpy, w, pid_atom),
wmclass ? wmclass : "(none)",
wmname2 ? wmname2 : "(none)",
wmname ? wmname : "(none)",
xembed_buf,
buf, attrs.override_redirect ? "override-redirect": "",
attrs.all_event_masks & SubstructureRedirectMask ?
"Substr.Redirect":"",
attrs.all_event_masks & SubstructureNotifyMask ?
"Substr.Notify":"",
por_sup ? "por.sup":"",
por_req ? "por.req":"",
non_comp != -1 ? "non-comp.":"",
n_children);
for (i = 0; i < n_children; ++i) {
print_children(dpy, child_l[i], level + 1);
}
XFree(child_l);
}
free(wmclass);
free(wmname);
free(wmtype);
free(wmstate);
}
int main()
{
Display *dpy;
Window root;
dpy = XOpenDisplay(NULL);
if (dpy == NULL) {
printf("couldn't open display\n");
return 1;
}
class_atom = XInternAtom(dpy, "WM_CLASS", False);
name_atom = XInternAtom(dpy, "_NET_WM_NAME", False);
name_atom2 = XInternAtom(dpy, "WM_NAME", False);
xembed_atom = XInternAtom(dpy, "_XEMBED_INFO", False);
pid_atom = XInternAtom(dpy, "_NET_WM_PID", False);
trans_atom = XInternAtom(dpy, "WM_TRANSIENT_FOR", False);
utf8_string_atom = XInternAtom(dpy, "UTF8_STRING", False);
current_app_atom = XInternAtom(dpy, "_MB_CURRENT_APP_WINDOW", False);
win_type_atom = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
wm_state_atom = XInternAtom(dpy, "_NET_WM_STATE", False);
theme_atom = XInternAtom(dpy, "_MB_THEME", False);
hildon_stack_atom = XInternAtom(dpy, "_HILDON_STACKABLE_WINDOW", False);
portrait_support = XInternAtom(dpy, "_HILDON_PORTRAIT_MODE_SUPPORT",
False);
portrait_request = XInternAtom(dpy, "_HILDON_PORTRAIT_MODE_REQUEST",
False);
non_comp_atom = XInternAtom(dpy, "_HILDON_NON_COMPOSITED_WINDOW",
False);
root = XDefaultRootWindow(dpy);
print_children(dpy, root, 0);
return 0;
}
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