Linux Manuals session 3

XtCreateSelectionRequest, XtSendSelectionRequest, XtCancelSelectionRequest – bundle multiple selection conversion requests into a single request using MULTIPLE target Syntax #include <X11/Intrinsic.h> void XtCreateSelectionRequest(Widget requestor, Atom selection); void XtSendSelectionRequest(Widget requestor, Atom selection, Time time); void XtCancelSelectionRequest(Widget requestor, Atom selection); Arguments requestor Specifies the widget making the request. Must be of class Core or a subclass thereof. selection Specifies…

XtDisplay, XtDisplayOfObject, XtScreen, XtScreenOfObject, XtWindow, XtWindowOfObject – obtain window information about a widget Syntax #include <X11/Intrinsic.h> Display *XtDisplay(Widget w); Display *XtDisplayOfObject(Widget object); Screen *XtScreen(Widget w); Screen *XtScreenOfObject(Widget object); Window XtWindow(Widget w); Window XtWindowOfObject(Widget object); Arguments w Specifies the widget. object Specifies the widget. Description XtDisplay returns the display pointer for the specified widget. XtDisplayOfObject returns…

XtDisplayInitialize, XtOpenDisplay, XtDatabase, XtScreenDatabase, XtCloseDisplay – initialize, open, or close a display Syntax #include <X11/Intrinsic.h> void XtDisplayInitialize(XtAppContext app_context, Display *display, const char *application_name, const char *application_class, XrmOptionDescRec *options, Cardinal num_options, int *argc, char **argv); Display *XtOpenDisplay(XtAppContext app_context, const char *display_string, const char *application_name, const char *application_class, XrmOptionDescRec *options, Cardinal num_options, int *argc, char **argv); void…

XtDisplay, XtDisplayOfObject, XtScreen, XtScreenOfObject, XtWindow, XtWindowOfObject – obtain window information about a widget Syntax #include <X11/Intrinsic.h> Display *XtDisplay(Widget w); Display *XtDisplayOfObject(Widget object); Screen *XtScreen(Widget w); Screen *XtScreenOfObject(Widget object); Window XtWindow(Widget w); Window XtWindowOfObject(Widget object); Arguments w Specifies the widget. object Specifies the widget. Description XtDisplay returns the display pointer for the specified widget. XtDisplayOfObject returns…

XtResolvePathname – search for a file using standard substitution Syntax #include <X11/Intrinsic.h> char * XtResolvePathname(Display *display, const char *type, const char *filename, const char *suffix, const char *path, Substitution substitutions, Cardinal num_substitutions, XtFilePredicate predicate); Arguments display Specifies the display to use to find the language for language substitutions. type filename suffix Specify values to substitute…

XtConfigureWidget, XtMoveWidget, XtResizeWidget – move and resize widgets Syntax #include <X11/Intrinsic.h> void XtConfigureWidget(Widget w, Position x, Position y, Dimension width, Dimension height, Dimension border_width); void XtMoveWidget(Widget w, Position x, Position y); void XtResizeWidget(Widget w, Dimension width, Dimension height, Dimension border_width); void XtResizeWindow(Widget w); Arguments width height border_width Specify the new widget size. w Specifies the…

XtReservePropertyAtom, XtReleasePropertyAtom – maintain a cache of property atoms Syntax #include <X11/Intrinsic.h> Atom XtReservePropertyAtom(Widget w); void XtReleasePropertyAtom(Widget w, Atom atom); Arguments w Specifies the widget used to reserve the atom. atom Specifies the atom whose reservation is to be released. Description XtReservePropertyAtom returns an atom that may be used for properties in conjunction with conversion…

XtAppAddWorkProc, XtRemoveWorkProc – Add and remove background processing procedures Syntax #include <X11/Intrinsic.h> XtWorkProcId XtAppAddWorkProc(XtAppContext app_context, XtWorkProc proc, XtPointer client_data); void XtRemoveWorkProc(XtWorkProcId id); Arguments app_context Specifies the application context that identifies the application. client_data Specifies the argument that is to be passed to the specified procedure when it is called. proc Specifies the procedure that is…

XtAppAddTimeOut, XtRemoveTimeOut – register and remove timeouts Syntax #include <X11/Intrinsic.h> XtIntervalId XtAppAddTimeOut(XtAppContext app_context, unsigned long interval, XtTimerCallbackProc proc, XtPointer client_data); void XtRemoveTimeOut(XtIntervalId timer); Arguments app_context Specifies the application context for which the timer is to be set. client_data Specifies the argument that is to be passed to the specified procedure when handling the callback. interval…

XtAppAddSignal, XtRemoveSignal, XtNoticeSignal – register and remove a signal source Syntax #include <X11/Intrinsic.h> XtSignalId XtAppAddSignal(XtAppContext app_context, XtSignalCallbackProc proc, XtPointer client_data); void XtRemoveSignal(XtSignalId id); void XtNoticeSignal(XtSignalId id); Arguments app_context Specifies the application context. client_data Specifies the argument that is to be passed to the specified procedure when a signal has been raised. id Specifies the ID…

XtAddEventHandler, XtAddRawEventHandler, XtRemoveEventHandler, XtRemoveRawEventHandler, XtInsertEventHandler, XtInsertRawEventHandler – add and remove event handlers Syntax #include <X11/Intrinsic.h> void XtAddEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable, XtEventHandler proc, XtPointer client_data); void XtAddRawEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable, XtEventHandler proc, XtPointer client_data); void XtRemoveEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable, XtEventHandler proc, XtPointer client_data); void XtRemoveRawEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable,…

XtAppAddInput, XtRemoveInput – register and remove an input source Syntax #include <X11/Intrinsic.h> XtInputId XtAppAddInput(XtAppContext app_context, int source, XtPointer condition, XtInputCallbackProc proc, XtPointer client_data); void XtRemoveInput(XtInputId id); Arguments app_context Specifies the application context that identifies the application. client_data Specifies the argument that is to be passed to the specified procedure when input is available. condition Specifies…

XtAddGrab, XtRemoveGrab – redirect user input to a modal widget Syntax #include <X11/Intrinsic.h> void XtAddGrab(Widget w, Boolean exclusive, Boolean spring_loaded); void XtRemoveGrab(Widget w); Arguments exclusive Specifies whether user events should be dispatched exclusively to this widget or also to previous widgets in the cascade. spring_loaded Specifies whether this widget was popped up because the user…

XtInsertEventTypeHandler, XtRemoveEventTypeHandler, XtRegisterExtensionSelector, XtSetEventDispatcher, XtDispatchEventToWidget – extension event handling Syntax #include <X11/Intrinsic.h> void XtInsertEventTypeHandler(Widget widget, int event_type, XtPointer select_data, XtEventHandler proc, XtPointer client_data, XtListPosition position); void XtRemoveEventTypeHandler(Widget widget, int event_type, XtPointer select_data, XtEventHandler proc, XtPointer client_data); void XtRegisterExtensionSelector(Display* display, int min_event_type, int max_event_type, XtExtensionSelectProc proc, XtPointer client_data); XtEventDispatchProc XtSetEventDispatcher(Display* display, int event_type, XtEventDispatchProc proc); Boolean…

XtAddEventHandler, XtAddRawEventHandler, XtRemoveEventHandler, XtRemoveRawEventHandler, XtInsertEventHandler, XtInsertRawEventHandler – add and remove event handlers Syntax #include <X11/Intrinsic.h> void XtAddEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable, XtEventHandler proc, XtPointer client_data); void XtAddRawEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable, XtEventHandler proc, XtPointer client_data); void XtRemoveEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable, XtEventHandler proc, XtPointer client_data); void XtRemoveRawEventHandler(Widget w, EventMask event_mask, Boolean nonmaskable,…

XtAddCallback, XtAddCallbacks, XtRemoveCallback, XtRemoveCallbacks, XtRemoveAllCallbacks – add and remove callback procedures Syntax #include <X11/Intrinsic.h> void XtAddCallback(Widget w, const char *callback_name, XtCallbackProc callback, XtPointer client_data); void XtAddCallbacks(Widget w, const char *callback_name, XtCallbackList callbacks); void XtRemoveCallback(Widget w, const char *callback_name, XtCallbackProc callback, XtPointer client_data); void XtRemoveCallbacks(Widget w, const char *callback_name, XtCallbackList callbacks); void XtRemoveAllCallbacks(Widget w, const char…

XtAddCallback, XtAddCallbacks, XtRemoveCallback, XtRemoveCallbacks, XtRemoveAllCallbacks – add and remove callback procedures Syntax #include <X11/Intrinsic.h> void XtAddCallback(Widget w, const char *callback_name, XtCallbackProc callback, XtPointer client_data); void XtAddCallbacks(Widget w, const char *callback_name, XtCallbackList callbacks); void XtRemoveCallback(Widget w, const char *callback_name, XtCallbackProc callback, XtPointer client_data); void XtRemoveCallbacks(Widget w, const char *callback_name, XtCallbackList callbacks); void XtRemoveAllCallbacks(Widget w, const char…

XtAppAddBlockHook, XtRemoveBlockHook – register a block hook procedure Syntax #include <X11/Intrinsic.h> XtBlockHookId XtAppAddBlockHook(XtAppContext app_context, XtBlockHookProc proc, XtPointer client_data); void XtRemoveBlockHook(XtBlockHookId id); Arguments app_context Specifies the application context. proc Specifies the block hook procedure. num_args Specifies the application-specific data to be passed to the block hook. Description XtAppAddBlockHook registers the specified procedure and returns an identifier…

XtAddCallback, XtAddCallbacks, XtRemoveCallback, XtRemoveCallbacks, XtRemoveAllCallbacks – add and remove callback procedures Syntax #include <X11/Intrinsic.h> void XtAddCallback(Widget w, const char *callback_name, XtCallbackProc callback, XtPointer client_data); void XtAddCallbacks(Widget w, const char *callback_name, XtCallbackList callbacks); void XtRemoveCallback(Widget w, const char *callback_name, XtCallbackProc callback, XtPointer client_data); void XtRemoveCallbacks(Widget w, const char *callback_name, XtCallbackList callbacks); void XtRemoveAllCallbacks(Widget w, const char…

XtAppAddActionHook, XtRemoveActionHook – register an action hook procedure Syntax #include <X11/Intrinsic.h> XtActionHookId XtAppAddActionHook(XtAppContext app_context, XtActionHookProc proc, XtPointer client_data); void XtRemoveActionHook(XtActionHookId id); Arguments app_context Specifies the application context. proc Specifies the action hook procedure. num_args Specifies the application-specific data to be passed to the action hook. Description XtAppAddActionHook adds the specified procedure to the front of…