Section 3: library functions
XtCallActionProc – invoke an action procedure directly Syntax #include <X11/Intrinsic.h> void XtCallActionProc(Widget widget, const char *action, XEvent *event, String *params, Cardinal num_params); Arguments widget Specifies the widget in which the action is to be invoked. Must be of class core of any subclass thereof. action Specifies the name of the action routine. event Specifies the…
XtCallAcceptFocus – calla widget’s accept_focus procedure Syntax #include <X11/Intrinsic.h> Boolean XtCallAcceptFocus(Widget w, Time *time); Arguments time Specifies the X time of the event that is causing the accept focus. w Specifies the widget. Description The XtCallAcceptFocus function calls the specified widget’s accept_focus procedure, passing it the specified widget and time, and returns what the accept_focus…
XtBuildEventMask – retrieve a widget’s event mask Syntax #include <X11/Intrinsic.h> EventMask XtBuildEventMask(Widget w); Arguments w Specifies the widget. Description The XtBuildEventMask function returns the event mask representing the logical OR of all event masks for event handlers registered on the widget with XtAddEventHandler and all event translations, including accelerators, installed on the widget. This is…
XtParseTranslationTable, XtAugmentTranslations, XtOverrideTranslations, XtUninstallTranslations – manage translation tables Syntax #include <X11/Intrinsic.h> XtTranslations XtParseTranslationTable(const char *table); void XtAugmentTranslations(Widget w, XtTranslations translations); void XtOverrideTranslations(Widget w, XtTranslations translations); void XtUninstallTranslations(Widget w); Arguments table Specifies the translation table to compile. translations Specifies the compiled translation table to merge in (must not be NULL). w Specifies the widget into which…
XtMalloc, XtCalloc, XtRealloc, XtFree, XtNew, XtNewString – memory management functions Syntax #include <X11/Intrinsic.h> char *XtMalloc(Cardinal size); char *XtCalloc(Cardinal num, Cardinal size); char *XtRealloc(char *ptr, Cardinal num); void XtFree(char *ptr); type *XtNew(type); String XtNewString(String string); Cardinal XtAsprintf(char **new_string, const char *format, …); Arguments num Specifies the number of bytes or array elements. ptr Specifies a pointer…
XtAppErrorMsg, XtAppSetErrorMsgHandler, XtAppSetWarningMsgHandler, XtAppWarningMsg – high-level error handlers Syntax #include <X11/Intrinsic.h> void XtAppErrorMsg(XtAppContext app_context, const char *name, const char *type, const char *class, const char *defaultMsg, String *params, Cardinal *num_params); XtErrorMsgHandler XtAppSetErrorMsgHandler(XtAppContext app_context, XtErrorMsgHandler msg_handler); XtErrorMsgHandler XtAppSetWarningMsgHandler(XtAppContext app_context, XtErrorMsgHandler msg_handler); void XtAppWarningMsg(XtAppContext app_context, const char *name, const char *type, const char *class, const char *defaultMsg,…
XtAppError, XtAppSetErrorHandler, XtAppSetWarningHandler, XtAppWarning – low-level error handlers Syntax #include <X11/Intrinsic.h> void XtAppError(XtAppContext app_context, const char *message); XtErrorHandler XtAppSetErrorHandler(XtAppContext app_context, XtErrorHandler handler); XtErrorHandler XtAppSetWarningHandler(XtAppContext app_context, XtErrorHandler handler); void XtAppWarning(XtAppContext app_context, const char *message); Arguments app_context Specifies the application context. message Specifies the nonfatal error message that is to be reported. handler Specifies the new fatal…
XtAppLock, XtAppUnlock – lock and unlock application context Syntax #include <X11/Intrinsic.h> void XtAppLock(XtAppContext app_context); void XtAppUnlock(XtAppContext app_context); Arguments app_context Specifies the application context. Description XtAppLock locks the application context including all its related displays and widgets. XtAppUnlock unlocks the application context. See Also X Toolkit Intrinsics – C Language Interface Xlib – C Language X…
XtAppErrorMsg, XtAppSetErrorMsgHandler, XtAppSetWarningMsgHandler, XtAppWarningMsg – high-level error handlers Syntax #include <X11/Intrinsic.h> void XtAppErrorMsg(XtAppContext app_context, const char *name, const char *type, const char *class, const char *defaultMsg, String *params, Cardinal *num_params); XtErrorMsgHandler XtAppSetErrorMsgHandler(XtAppContext app_context, XtErrorMsgHandler msg_handler); XtErrorMsgHandler XtAppSetWarningMsgHandler(XtAppContext app_context, XtErrorMsgHandler msg_handler); void XtAppWarningMsg(XtAppContext app_context, const char *name, const char *type, const char *class, const char *defaultMsg,…
XtAppError, XtAppSetErrorHandler, XtAppSetWarningHandler, XtAppWarning – low-level error handlers Syntax #include <X11/Intrinsic.h> void XtAppError(XtAppContext app_context, const char *message); XtErrorHandler XtAppSetErrorHandler(XtAppContext app_context, XtErrorHandler handler); XtErrorHandler XtAppSetWarningHandler(XtAppContext app_context, XtErrorHandler handler); void XtAppWarning(XtAppContext app_context, const char *message); Arguments app_context Specifies the application context. message Specifies the nonfatal error message that is to be reported. handler Specifies the new fatal…
XtAppSetTypeConverter, XtSetTypeConverter – register resource converter Syntax #include <X11/Intrinsic.h> void XtAppSetTypeConverter(XtAppContext app_context, const char *from_type, const char * to_type, XtTypeConverter converter, XtConvertArgList convert_args, Cardinal num_args, XtCacheType cache_type, XtDestructor destructor); void XtSetTypeConverter(const char *from_type, const char *to_type, XtTypeConverter converter, XtConvertArgList convert_args, Cardinal num_args, XtCacheType cache_type, XtDestructor destructor); Arguments app_context Specifies the application context. converter Specifies the…
XtAppGetSelectionTimeout, XtAppSetSelectionTimeout – set and obtain selection timeout values Syntax #include <X11/Intrinsic.h> unsigned long XtAppGetSelectionTimeout(XtAppContext app_context); void XtAppSetSelectionTimeout(XtAppContext app_context, unsigned long timeout); Arguments app_context Specifies the application context. timeout Specifies the selection timeout in milliseconds. Description The XtAppGetSelectionTimeout function returns the current selection timeout value, in milliseconds. The selection timeout is the time within which…
XtAppSetFallbackResources – set fallback resources Syntax #include <X11/Intrinsic.h> void XtAppSetFallbackResources(XtAppContext app_context, String* specification_list); Arguments app_context Specifies the application context. specification_list Specifies a NULL-terminated list of resource specifications to pre-load the database, or NULL. Description Each entry in specification_list points to a string in the format XrmPutLineResource. following a call to XtAppSetFallbackResources, when a resource database…
XtAppSetExitFlag, XtAppGetExitFlag – thread support functions Syntax #include <X11/Intrinsic.h> void XtAppSetExitFlag(XtAppContext app_context); Boolean XtAppGetExitFlag(XtAppContext app_context); Arguments app_context Specifies the application context. Description To indicate that an application context should exit, use XtAppSetExitFlag. To test the exit status of an application context, use XtAppGetExitFlag. See Also X Toolkit Intrinsics – C Language Interface Xlib – C…
XtAppErrorMsg, XtAppSetErrorMsgHandler, XtAppSetWarningMsgHandler, XtAppWarningMsg – high-level error handlers Syntax #include <X11/Intrinsic.h> void XtAppErrorMsg(XtAppContext app_context, const char *name, const char *type, const char *class, const char *defaultMsg, String *params, Cardinal *num_params); XtErrorMsgHandler XtAppSetErrorMsgHandler(XtAppContext app_context, XtErrorMsgHandler msg_handler); XtErrorMsgHandler XtAppSetWarningMsgHandler(XtAppContext app_context, XtErrorMsgHandler msg_handler); void XtAppWarningMsg(XtAppContext app_context, const char *name, const char *type, const char *class, const char *defaultMsg,…
XtAppError, XtAppSetErrorHandler, XtAppSetWarningHandler, XtAppWarning – low-level error handlers Syntax #include <X11/Intrinsic.h> void XtAppError(XtAppContext app_context, const char *message); XtErrorHandler XtAppSetErrorHandler(XtAppContext app_context, XtErrorHandler handler); XtErrorHandler XtAppSetWarningHandler(XtAppContext app_context, XtErrorHandler handler); void XtAppWarning(XtAppContext app_context, const char *message); Arguments app_context Specifies the application context. message Specifies the nonfatal error message that is to be reported. handler Specifies the new fatal…
XtAppReleaseCacheRefs – decrement reference counts for resources Syntax #include <X11/Intrinsic.h> void XtAppReleaseCacheRefs(XtAppContext app_context, XtCacheRef* refs); Arguments app_context Specifies the application context. refs Specifies the list of cache references to be released. Description XtAppReleaseCacheRefs decrements the reference count for the conversion entries identified by the refs argument. This argument is a pointer to a NULL-terminated list…
XtAppNextEvent, XtAppPending, XtAppPeekEvent, XtAppProcessEvent, XtDispatchEvent, XtAppMainLoop – query and process events and input Syntax #include <X11/Intrinsic.h> void XtAppNextEvent(XtAppContext app_context, XEvent *event_return); Boolean XtAppPeekEvent(XtAppContext app_context, XEvent *event_return); XtInputMask XtAppPending(XtAppContext app_context); void XtAppProcessEvent(XtAppContext app_context, XtInputMask mask); Boolean XtDispatchEvent(XEvent *event); void XtAppMainLoop(XtAppContext app_context); Arguments app_context Specifies the application context that identifies the application. event Specifies a pointer to…
XtAppNextEvent, XtAppPending, XtAppPeekEvent, XtAppProcessEvent, XtDispatchEvent, XtAppMainLoop – query and process events and input Syntax #include <X11/Intrinsic.h> void XtAppNextEvent(XtAppContext app_context, XEvent *event_return); Boolean XtAppPeekEvent(XtAppContext app_context, XEvent *event_return); XtInputMask XtAppPending(XtAppContext app_context); void XtAppProcessEvent(XtAppContext app_context, XtInputMask mask); Boolean XtDispatchEvent(XEvent *event); void XtAppMainLoop(XtAppContext app_context); Arguments app_context Specifies the application context that identifies the application. event Specifies a pointer to…
XtAppNextEvent, XtAppPending, XtAppPeekEvent, XtAppProcessEvent, XtDispatchEvent, XtAppMainLoop – query and process events and input Syntax #include <X11/Intrinsic.h> void XtAppNextEvent(XtAppContext app_context, XEvent *event_return); Boolean XtAppPeekEvent(XtAppContext app_context, XEvent *event_return); XtInputMask XtAppPending(XtAppContext app_context); void XtAppProcessEvent(XtAppContext app_context, XtInputMask mask); Boolean XtDispatchEvent(XEvent *event); void XtAppMainLoop(XtAppContext app_context); Arguments app_context Specifies the application context that identifies the application. event Specifies a pointer to…