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00028 #include "config.h"
00029
00030 #include <tqevent.h>
00031 #include <tqwindowdefs.h>
00032
00033 #if defined Q_WS_X11
00034 #include <X11/X.h>
00035 #include <X11/Xlib.h>
00036 #include <kxerrorhandler.h>
00037 #endif
00038
00039 #include <kipc.h>
00040
00041
00042 #if defined Q_WS_X11
00043 static long getSimpleProperty(Window w, Atom a)
00044 {
00045 Atom real_type;
00046 int format;
00047 unsigned long n, extra, res = 0;
00048 int status;
00049 unsigned char *p = 0;
00050
00051 status = XGetWindowProperty(tqt_xdisplay(), w, a, 0L, 1L, False, a,
00052 &real_type, &format, &n, &extra, &p);
00053 if ((status == Success) && (n == 1) && (format == 32))
00054 res = *(unsigned long*)p;
00055 if (p) XFree(p);
00056 return res;
00057 }
00058 #endif
00059
00060 void KIPC::sendMessage(Message msg, WId w, int data)
00061 {
00062 #if defined Q_WS_X11
00063 static Atom a = 0;
00064 if (a == 0)
00065 a = XInternAtom(tqt_xdisplay(), "KIPC_COMM_ATOM", False);
00066 XEvent ev;
00067 ev.xclient.type = ClientMessage;
00068 ev.xclient.display = tqt_xdisplay();
00069 ev.xclient.window = (Window) w;
00070 ev.xclient.message_type = a;
00071 ev.xclient.format = 32;
00072 ev.xclient.data.l[0] = msg;
00073 ev.xclient.data.l[1] = data;
00074 XSendEvent(tqt_xdisplay(), (Window) w, False, 0L, &ev);
00075
00076
00077 static Atom kde1 = 0;
00078 if ( msg == PaletteChanged || msg == FontChanged ) {
00079 if ( kde1 == 0 )
00080 kde1 = XInternAtom(tqt_xdisplay(), "KDEChangeGeneral", False );
00081 ev.xclient.message_type = kde1;
00082 XSendEvent(tqt_xdisplay(), (Window) w, False, 0L, &ev);
00083 }
00084
00085 #endif
00086 }
00087
00088
00089 void KIPC::sendMessageAll(Message msg, int data)
00090 {
00091 #if defined Q_WS_X11
00092 unsigned int i, nrootwins;
00093 Window dw1, dw2, *rootwins = 0;
00094 Display *dpy = tqt_xdisplay();
00095 int screen_count = ScreenCount(dpy);
00096
00097 KXErrorHandler handler;
00098 for (int s = 0; s < screen_count; s++) {
00099 Window root = RootWindow(dpy, s);
00100
00101 XQueryTree(dpy, root, &dw1, &dw2, &rootwins, &nrootwins);
00102 Atom a = XInternAtom(tqt_xdisplay(), "KDE_DESKTOP_WINDOW", False);
00103 for (i = 0; i < nrootwins; i++)
00104 {
00105 if (getSimpleProperty(rootwins[i], a) != 0L)
00106 sendMessage(msg, rootwins[i], data);
00107 }
00108 XFree((char *) rootwins);
00109 }
00110 XSync(dpy,False);
00111 #endif
00112 }
00113