xtpopdown(3) [hpux man page]
XtPopdown() XtPopdown() Name XtPopdown - unmap a popup shell. Synopsis void XtPopdown(popup_shell) Widget popup_shell; Inputs popup_shell Specifies the widget shell to pop down. Description XtPopdown() pops down a popup shell and calls the functions registered on the shell's XtNpopdownCallback list. The "Algorithm" section below explains the details of this process. Usage The Intrinsics also provide other convenience routines to pop down a popup shell. To perform a pop down from a callback list, register the function XtCallbackPopdown(). To do so from a translation table, use the action XtMenuPopdown. Popup shell widgets can be created with XtCreatePopupShell(), and can be popped up with XtPopup() or XtPopupSpringLoaded(), or with one of the built-in callback functions (XtCallbackExclusive(), XtCallbackNonexclusive(), or XtCallbackNone()), or with the built-in action XtMenuPopup. Algorithm XtPopdown() performs the following: o Calls XtCheckSubclass() to ensure popup_shell's class is a subclass of shellWidgetClass. o Checks that the popped_up field of popup_shell is True; otherwise, it returns immediately. o Unmaps popup_shell's window and, if override_redirect is False, sends a synthetic UnmapNotify event as specified by the Inter-Client Communications Conventions Manual. o If popup_shell's grab_kind is either XtGrabNonexclusive or XtGrabExclusive, it calls XtRemoveGrab(). o Sets popup_shell's popped_up field to False. o Calls the callback procedures on the shell's popdown_callback list, specifying a pointer to the value of the shell's grab_kind field as the call_data argument. See Also XtCallbackPopdown(1), XtCreatePopupShell(1), XtMenuPopdown(1), XtPopup(1), XtPopupSpringLoaded(1), XtRemoveGrab(1). Xt - Pop Ups XtPopdown()
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XtPopup() XtPopup() Name XtPopup - map a popup shell. Synopsis void XtPopup(popup_shell, grab_kind) Widget popup_shell; XtGrabKind grab_kind; Inputs popup_shell Specifies a shell widget returned by XtCreatePopupShell(). grab_kind Specifies how user events should be constrained. (Can be one of XtGrabNone, XtGrabNonexclusive, XtGrabExclusive.) Description XtPopup() calls the functions registered on the shell's XtNpopupCallback list and pops up the shell widget (and its managed child). The "Algorithm" section below explains this process in more detail. If grab_kind is XtGrabNone, the resulting popup is "modeless", and does not lock out input events to the rest of the application. If it is XtGrabNonexclusive, then the resulting popup is "modal" and locks out input to the main application window, but not to other modal popups that are currently popped up. If it is XtGrabExclusive, then the resulting popup is modal and locks out input to the main application win- dow and all previous popup windows. For more details on XtGrabNonexclusive and XtGrabExclusive, see XtAddGrab(). Usage By default, XtPopup() maps its window to the upper-left corner of the display. You will generally want to position the shell by setting its XtNx and XtNy resources before calling XtPopup(). The Intrinsics also provide convenience routines to popup a shell. To perform a pop up from a callback list, register one of the functions XtCallbackNone(), XtCallbackNonexclusive(), or XtCallbackExclusive(). To do so from a translation table, use the XtMenuPopup action. Widgets can be popped down with XtPopdown(), the XtCallbackPopdown() callback function, or the XtMenuPopdown action. If you are using the Motif widget set, you will generally never need to call XtPopup() or XtPopdown(). The Motif XmDialogShell widget automatically pops up when its child is managed, and pops down when its child is unmanaged. Algorithm The XtPopup() function performs the following: o Calls XtCheckSubclass() to ensure popup_shell's class is a subclass of shellWidgetClass. o Raises the window and returns if the shell's popped_up field is already True. o Calls the callback procedures on the shell's XtNpopupCallback list, specifying a pointer to the value of grab_kind as the call_data argument. o Sets the shell popped_up field to True, the shell spring_loaded field to False, and the shell grab_kind field from grab_kind. o If the shell's XtNcreatePopupChildProc resource is non-NULL, XtPopup() calls the specified procedure with popup_shell as the parameter. o If grab_kind is either XtGrabNonexclusive or XtGrabExclusive, it calls: XtAddGrab(popup_shell, (grab_kind == XtGrabExclusive), False) o Calls XtRealizeWidget() with popup_shell specified. o Calls XMapRaised() with the window of popup_shell. Structures The XtGrabKind type is defined as follows: typedef enum {XtGrabNone, XtGrabNonexclusive, XtGrabExclusive} XtGrabKind; See Also XtAddGrab(1), XtCallbackExclusive(1), XtCallbackNone(1), XtCallbackNonexclusive(1), XtCallbackPopdown(1), XtCreatePopupShell(1), XtMenuPop- down(1), XtMenuPopup(1), XtPopdown(1), XtPopupSpringLoaded(1). Xt - Pop Ups XtPopup()