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How do I pop down all currently displayed dialogs? 20-May-02 10:00 GMT Question: My application has a large number of dialogs many of which can be displayed at any one time. I'd like to be able to pop down all currently displayed dialogs in my application simultaneously. There is a way to do this but it involves a little low level coding. You will basically have to poke into the widget structure to extract the list of "popup" shells associated with any given dialog. The following code should give you everything you need to implement this in your own application. The code contains the following routines: void PopdownAllShells(Widget shell, Boolean include_me) the main routine, which pops down all shells that hang off "shell" recursively. Example. If you want to popdown everything except the application shell (or session shell, if you are using one of these instead), then call: PopdownAllShells(application_shell, False) ; If you want to popdown absolutely everything, then call: PopdownAllShells(application_shell, True) There is also the following subsidiary routine: void PopdownShell(Widget shell) this arranges to pop down a shell, irrespective of its type. This is not recursive. For your convenience, I have also defined: void PopupShell(Widget shell, Boolean de_iconify) which arranges to pop up the given shell (but not recursively), irrespective of its type. If de_iconify is true, it also arranges to map it from the iconic state if that is the state it finds itself in. The code follows. However if you are going to use the code we would recommend that you download it, as the file popshells.c, - just right click on the link and select 'Save Target As' or 'Save Link As' depending on your browser. #include <X11/Intrinsic.h> #include <X11/IntrinsicP.h> #include <X11/Core.h> #include <X11/CoreP.h> #include <Xm/Xm.h> #include <Xm/DialogS.h> #ifndef _NO_PROTO static void PopdownApplicationShell(Widget shell) #else /* _NO_PROTO */ static void PopdownApplicationShell(shell) Widget shell ; #endif /* _NO_PROTO */ { if ((shell != (Widget) 0) && !shell->core.being_destroyed) { if (XtIsRealized(shell)) { Display *display = XtDisplay(shell) ; Window window = XtWindow(shell) ; Screen *screen = XtScreen(shell) ; (void) XWithdrawWindow(display, window, XScreenNumberOfScreen(screen)) ; } } } #ifndef _NO_PROTO static void PopdownDialogShell(Widget shell) #else /* _NO_PROTO */ static void PopdownDialogShell(shell) Widget shell ; #endif /* _NO_PROTO */ { if ((shell != (Widget) 0) && !shell->core.being_destroyed) { WidgetList children = (WidgetList) 0 ; Cardinal num_children = 0 ; Widget child = (Widget) 0 ; XtVaGetValues(shell, XmNchildren, &children, XmNnumChildren, &num_children, NULL) ; if (num_children > 0) { if ((child = children[0]) != (Widget) 0) { if (!child->core.being_destroyed) { XtUnmanageChild(child) ; } } } } } #ifndef _NO_PROTO static void PopdownGeneralShell(Widget shell) #else /* _NO_PROTO */ static void PopdownGeneralShell(shell) Widget shell ; #endif /* _NO_PROTO */ { if ((shell != (Widget) 0) && !shell->core.being_destroyed) { if (XtIsRealized(shell)) { XtPopdown(shell) ; } } } #ifndef _NO_PROTO void PopdownShell(Widget shell) #else /* _NO_PROTO */ void PopdownShell(shell) Widget shell ; #endif /* _NO_PROTO */ { if ((shell != (Widget) 0) && !shell->core.being_destroyed) { if (XmIsDialogShell(shell)) { PopdownDialogShell(shell) ; } else if (XtIsApplicationShell(shell)) { PopdownApplicationShell(shell) ; } else if (XtIsShell(shell)) { PopdownGeneralShell(shell) ; } } } #ifndef _NO_PROTO void PopdownAllShells(Widget shell, Boolean include_me) #else /* _NO_PROTO */ void PopdownAllShells(shell, include_me) Widget shell ; Boolean include_me ; #endif /* _NO_PROTO */ { WidgetList popups = (WidgetList) 0 ; Cardinal num_popups = (Cardinal) 0 ; Widget popup ; int i ; if (shell != (Widget) 0) { popups = shell->core.popup_list ; num_popups = shell->core.num_popups ; for (i = 0 ; i < num_popups ; i++) { popup = popups[i] ; if (popup != (Widget) 0) { PopdownAllShells(popup, True) ; } } if (include_me == True) { PopdownShell(shell) ; } } } #ifndef _NO_PROTO static void PopupApplicationShell(Widget shell, Boolean de_iconify) #else /* _NO_PROTO */ static void PopupApplicationShell(shell, de_iconify) Widget shell ; Boolean de_iconify ; #endif /* _NO_PROTO */ { if ((shell != (Widget) 0) && !shell->core.being_destroyed) { Boolean iconic = False ; if (XtIsRealized(shell)) { XtMapWidget(shell) ; } XtRealizeWidget(shell) ; if (de_iconify == True) { XtVaGetValues(shell, XmNiconic, &iconic, NULL) ; if (iconic == True) { XtVaSetValues(shell, XmNiconic, False, NULL) ; XRaiseWindow(XtDisplay(shell), XtWindow(shell)) ; } } } } #ifndef _NO_PROTO static void PopupDialogShell(Widget shell) #else /* _NO_PROTO */ static void PopupDialogShell(shell) Widget shell ; #endif /* _NO_PROTO */ { if ((shell != (Widget) 0) && !shell->core.being_destroyed) { WidgetList children = (WidgetList) 0 ; Cardinal num_children = 0 ; Widget child = (Widget) 0 ; XtVaGetValues(shell, XmNchildren, &children, XmNnumChildren, &num_children, NULL) ; if (num_children > 0) { if ((child = children[0]) != (Widget) 0) { if (!child->core.being_destroyed) { XtManageChild(child) ; } } } } } #ifndef _NO_PROTO static void PopupGeneralShell(Widget shell, Boolean de_iconify) #else /* _NO_PROTO */ static void PopupGeneralShell(shell, de_iconify) Widget shell ; Boolean de_iconify ; #endif /* _NO_PROTO */ { if ((shell != (Widget) 0) && !shell->core.being_destroyed) { Boolean iconic = False ; if (XtIsRealized(shell)) { XtPopup(shell, XtGrabNone) ; } else { XtRealizeWidget(shell) ; XtPopup(shell, XtGrabNone) ; } if (de_iconify == True) { XtVaGetValues(shell, XmNiconic, &iconic, NULL) ; if (iconic == True) { XtVaSetValues(shell, XmNiconic, False, NULL) ; XtMapWidget(shell) ; XRaiseWindow(XtDisplay(shell), XtWindow(shell)) ; } } } } #ifndef _NO_PROTO void PopupShell(Widget shell, Boolean de_iconify) #else /* _NO_PROTO */ void PopupShell(shell, de_iconify) Widget shell ; Boolean de_iconify ; #endif /* _NO_PROTO */ { if ((shell != (Widget) 0) && !shell->core.being_destroyed) { if (XmIsDialogShell(shell)) { PopupDialogShell(shell) ; } else if (XtIsApplicationShell(shell)) { PopupApplicationShell(shell, de_iconify) ; } else if (XtIsShell(shell)) { PopupGeneralShell(shell, de_iconify) ; } } }   Sponsored by X-Designer - The Leading X/Motif GUI Builder - Click to download a FREE evaluation   Goto top of page