Package libXt-devel

X.Org X11 libXt development package

http://www.x.org

Library Functions (Section 3)
XtAddActions
XtAddActions has been replaced by XtAppAddActions.
XtAddCallback
The XtAddCallback function adds the specified callback procedure to the specified widget's callback list. The XtAddCallbacks add the specified list of callbacks...
XtAddEventHandler
The XtAddEventHandler function registers a procedure with the dispatch mechanism that is to be called when an event that matches the mask occurs on the...
XtAddExposureToRegion
The XtAddExposureToRegion function computes the union of the rectangle defined by the exposure event and the specified region. Then, it stores the results back...
XtAddGrab
The XtAddGrab function appends the widget (and associated parameters) to the modal cascade and checks that exclusive is True if spring_loaded is True. If these...
XtAddInput
XtAddInput has been replaced by XtAppAddInput. XtAddTimeOut has been replaced by XtAppAddTimeOut. XtAddWorkProc has been replaced by XtAppAddWorkProc.
XtAllocateGC
The XtAllocateGC function returns a sharable GC that may be modified by the client. The screen field of the specified widget or of the nearest widget ancestor...
XtAppAddActionHook
XtAppAddActionHook adds the specified procedure to the front of a list maintained in the application context. In the future, when an action routine is about to...
XtAppAddActions
The XtAppAddActions function adds the specified action table and registers it with the translation manager.
XtAppAddBlockHook
XtAppAddBlockHook registers the specified procedure and returns an identifier for it. The hook is called at any time in the future when the Intrinsics are about...
XtAppAddConverter
XtAppAddConverter is equivalent in function to XtAppSetTypeConverter with cache_type equal to XtCacheAll for old-format type converters. It has been superseded...
XtAppAddInput
The XtAppAddInput function registers with the Intrinsics read routine a new source of events, which is usually file input but can also be file output. Note that...
XtAppAddSignal
The XtAppAddSignal function initiates a mechanism for handling signals within the context of the Intrinsics. Prior to establishing an operating system dependent...
XtAppAddTimeOut
The XtAppAddTimeOut function creates a timeout and returns an identifier for it. The timeout value is set to interval. The callback procedure is called when the...
XtAppAddWorkProc
The XtAppAddWorkProc function adds the specified work procedure for the application identified by app_context. The XtRemoveWorkProc function explicitly removes...
XtAppCreateShell
The XtAppCreateShell function saves the specified application name and application class for qualifying all widget resource specifiers. The application name and...
XtAppError
The XtAppError function calls the installed error procedure and passes the specified message. The XtAppSetErrorHandler function registers the specified...
XtAppErrorMsg
The XtAppErrorMsg function calls the high-level error handler and passes the specified information. The XtAppSetErrorMsgHandler function registers the specified...
XtAppGetErrorDatabase
The XtAppGetErrorDatabase function returns the address of the error database. The Intrinsics do a lazy binding of the error database and do not merge in the...
XtAppGetSelectionTimeout
The XtAppGetSelectionTimeout function returns the current selection timeout value, in milliseconds. The selection timeout is the time within which the two...
XtAppInitialize
The XtAppInitialize function calls XtToolkitInitialize followed by XtCreateApplicationContext, then calls XtOpenDisplay with display_string NULL and...
XtAppLock
XtAppLock locks the application context including all its related displays and widgets. XtAppUnlock unlocks the application context.
XtAppNextEvent
If the X event queue is empty, XtAppNextEvent flushes the X output buffers of each Display in the application context and waits for an event while looking at...
XtAppReleaseCacheRefs
XtAppReleaseCacheRefs decrements the reference count for the conversion entries identified by the refs argument. This argument is a pointer to a NULL-terminated...
XtAppSetExitFlag
To indicate that an application context should exit, use XtAppSetExitFlag. To test the exit status of an application context, use XtAppGetExitFlag.
XtAppSetFallbackResources
Each entry in specification_list points to a string in the format XrmPutLineResource. following a call to XtAppSetFallbackResources, when a resource database is...
XtAppSetTypeConverter
XtSetTypeConverter registers the specified type converter and destructor in all application contexts created by the calling process, including any future...
XtBuildEventMask
The XtBuildEventMask function returns the event mask representing the logical OR of all event masks for event handlers registered on the widget with...
XtCallAcceptFocus
The XtCallAcceptFocus function calls the specified widget's accept_focus procedure, passing it the specified widget and time, and returns what the accept_focus...
XtCallActionProc
XtCallActionProc searches for the named action routine in the same manner and order as translation tables are bound. If found, the action routine is invoked...
XtCallCallbacks
The XtCallCallbacks function calls each procedure that is registered in the specified widget's callback list. If callbacks is not NULL, XtCallCallbackList calls...
XtClass
The XtClass function returns a pointer to the widget's class structure. The XtSuperclass function returns a pointer to the widget's superclass class structure...
XtConfigureWidget
The XtConfigureWidget function returns immediately if the specified geometry fields are the same as the old values. Otherwise, XtConfigureWidget writes the new...
XtConvert
The XtConvert function looks up the type converter registered to convert from_type to to_type, computes any additional arguments needed, and then calls...
XtConvertAndStore
The XtConvertAndStore function looks up the type converter registered to convert from_type to to_type, computes any additional arguments needed, and then calls...
XtCreateApplicationContext
The XtCreateApplicationContext function returns an application context, which is an opaque type. Every application must have at least one application context...
XtCreateApplicationShell
The procedure XtCreateApplicationShell calls XtAppCreateShell with the application NULL, the application class passed to XtInitialize, and the default...
XtCreatePopupShell
The XtCreatePopupShell function ensures that the specified class is a subclass of Shell and, rather than using insert_child to attach the widget to the parent's...
XtCreateSelectionRequest
When XtCreateSelectionRequest is called, subsequent calls to XtGetSelectionValue and XtGetSelectionValueIncremental with the requestor and selection as...
XtCreateWidget
create and destroy widgets
XtCreateWindow
The XtCreateWindow function calls the Xlib XCreateWindow function with values from the widget structure and the passed parameters. Then, it assigns the created...
XtDisplay
XtDisplay returns the display pointer for the specified widget. XtDisplayOfObject returns the display pointer for the specified object. XtScreen returns the...
XtDisplayInitialize
The XtDisplayInitialize function builds the resource database, calls the Xlib XrmParseCommand function to parse the command line, and performs other per display...
XtDisplayStringConversionWarning
The XtDisplayStringConversionWarning function issues a warning message using XtAppWarningMsg with name “conversionError”, type “string”, class ``XtToolkitError...
XtDisplayToApplicationContext
The XtDisplayToApplicationContext function returns the application context for the specified display.
XtError
The XtError function has been superceded by XtAppError. The XtSetErrorHandler function has been superceded by XtAppSetErrorHandler. The XtSetWarningHandler...
XtErrorMsg
The XtErrorMsg function has been superceded by XtAppErrorMsg. The XtSetErrorMsgHandler function has been superceded by XtAppSetErrorMsgHandler. The...
XtFindFile
The path parameter specifies a string that consists of a series of potential file names delimited by colons. Within each name, the percent character specifies a...
XtGetActionKeysym
If XtGetActionKeysym is called after an action procedure has been invoked by the Intrinsics and before that action procedure returns, and if the event pointer...
XtGetActionList
XtGetActionList returns the action table defined by the specified widget class. This table does not include actions defined by the superclasses. If widget_class...
XtGetApplicationNameAndClass
XtGetApplicationNameAndClass returns the application name and class passed to XtDisplayInitialize for the specified display. If the display was never...
XtGetApplicationResources
The XtGetApplicationResources function first uses the passed widget, which is usually an application shell, to construct a resource name and class list, Then...
XtGetClassExtension
The list of extension records at the specified offset in the specified widget_class will be searched for a match on the specified type, a version greater than...
XtGetDisplays
To free the list of displays, use XtFree.
XtGetErrorDatabase
The XtGetErrorDatabase function has been superceded by XtAppGetErrorDatabase. The XtGetErrorDatabaseText function has been superceded by...
XtGetGC
The XtGetGC function returns a sharable, read-only GC. The parameters to this function are the same as those for XCreateGC except that a widget is passed...
XtGetKeyboardFocusWidget
XtGetKeyboardFocusWidget function returns the widget that would be the end result of keyboard event forwarding for a keyboard event for the specified widget.
XtGetKeysymTable
XtGetKeysymTable returns a pointer to the Intrinsics' copy of the server's KeyCode-to-KeySym table. This table must not be modified. The XtKeysymToKeycodeList...
XtGetResourceList
If XtGetResourceList is called before the widget class is initialized (that is, before the first widget of that class has been created), XtGetResourceList...
XtGetSelectionParameters
XtGetSelectionParameters may only be called from within an XtConvertSelectionProc or from within the last call to an XtConvertSelectionIncrProc with a new...
XtGetSelectionRequest
XtGetSelectionRequest may only be called from within an XtConvertSelectionProc procedure and returns a pointer to the SelectionRequest event that caused the...
XtGetSelectionTimeout
The XtGetSelectionTimeout function has been superceded by XtAppGetSelectionTimeout. The XtSetSelectionTimeout function has been superceded by...
XtGetSelectionValue
The XtGetSelectionValue function requests the value of the selection that has been converted to the target type. The specified callback will be called some time...
XtGetSelectionValueIncremental
The XtGetSelectionValueIncremental function is similar to XtGetSelectionValue except that the selection_callback procedure will be called repeatedly upon...
XtGetSubresources
The XtGetSubresources function constructs a name/class list from the application name/class, the name/classes of all its ancestors, and the widget itself. Then...
XtGrabKey
XtGrabKey calls XGrabKey specifying the widget's window as the grab window if the widget is realized. The remaining arguments are exactly as for XGrabKey. If...
XtHooksOfDisplay
The class of this object is a private, implementation dependent, subclass of Object. The hook object has no parent. The resources of this object are the...
XtInitialize
XtInitialize calls XtToolkitInitialize followed by XtOpenDisplay with display_string NULL and application_name NULL, and finally calls XtAppCreateShell with...
XtInitializeWidgetClass
If the specified widget class is already initialized, XtInitializeWidgetClass returns immediately. If the class initialization procedure registers type...
XtInsertEventTypeHandler
The XtInsertEventTypeHandler function registers a procedure with the dispatch mechanism that is to be called when an event that matches the specified event_type...
XtLastEventProcessed
XtLastEventProcessed returns the last event passed to XtDispatchEvent for the specified display and NULL if there has been no event. The client must not modify...
XtMakeGeometryRequest
make geometry manager request
XtMalloc
The XtMalloc functions returns a pointer to a block of storage of at least the specified size bytes. If there is insufficient memory to allocate the new block...
XtManageChildren
manage and unmanage children
XtMapWidget
If the widget is realized and managed and if the new value of map_when_managed is True, XtSetMappedWhenManaged maps the window. If the widget is realized and...
XtName
XtName returns the widget's name.
XtNameToWidget
The XtNameToWidget function looks for a widget whose name is the first component in the specified names and that is a pop-up child of reference (or a normal...
XtNextEvent
XtNextEvent has been replaced by XtAppNextEvent. XtPeekEvent has been replaced by XtAppPeekEvent. XtPending has been replaced by XtAppPending. XtProcessEvent...
XtOffset
The XtOffset macro is usually used to determine the offset of various resource fields from the beginning of a widget and can be used at compile time in static...
XtOpenApplication
The XtOpenApplication function calls XtToolkitInitialize followed by XtCreateApplicationContext, then calls XtOpenDisplay with display_string NULL and...
XtOwnSelection
The XtOwnSelection function informs the Intrinsics selection mechanism that a widget believes it owns a selection. It returns True if the widget has...
XtParent
XtParent returns the widget's parent widget ID.
XtParseAcceleratorTable
The XtParseAcceleratorTable function compiles the accelerator table into the opaque internal representation. The XtInstallAccelerators function installs the...
XtParseTranslationTable
The XtParseTranslationTable function compiles the translation table into the opaque internal representation of type XtTranslations. Note that if an empty...
XtPopdown
unmap a pop-up
XtPopup
map a pop-up
XtProcessLock
XtProcessLock is used to lock all process global data. XtProcessUnlock unlocks the process.
XtQueryGeometry
To discover a child's preferred geometry, the child's parent sets any changes that it intends to make to the child's geometry in the corresponding fields of the...
XtRealizeWidget
If the widget is already realized, XtRealizeWidget simply returns.
XtRegisterDrawable
XtRegisterDrawable associates the specified drawable with the specified widget so that future calls to XtWindowToWidget with the drawable will return the...
XtRegisterGrabAction
XtRegisterGrabAction adds the specified action_proc to a list known to the translation manager.
XtReservePropertyAtom
XtReservePropertyAtom returns an atom that may be used for properties in conjunction with conversion requests from widget w. The atom returned will be unique...
XtResolvePathname
The substitutions specified by XtResolvePathname are determined from the value of the language string retrieved by XtDisplayInitialize for the specified...
XtSessionGetToken
The XtSessionGetToken function will return NULL if the checkpoint operation instigated by the session manager is not currently under way. To indicate the...
XtSetArg
set and merge ArgLists
XtSetKeyboardFocus
If a future KeyPress or KeyRelease event occurs within the specified subtree, XtSetKeyboardFocus causes XtDispatchEvent to remap and send the event to the...
XtSetKeyTranslator
The XtSetKeyTranslator function sets the specified procedure as the current key translator. The default translator is XtTranslateKey, an XtKeyProc that uses...
XtSetLanguageProc
XtSetLanguageProc sets the language procedure that will be called from XtDisplayInitialize for all subsequent Displays initialized in the specified application...
XtSetMultiClickTime
XtSetMultiClickTime sets the time interval used by the translation manager to determine when multiple events are interpreted as a repeated event...
XtSetSelectionParameters
The specified parameters will be copied and stored in a new property of the specified type and format on the requestor's window. To initiate a selection request...
XtSetSensitive
The XtSetSensitive function first calls XtSetValues on the current widget with an argument list specifying that the sensitive field should change to the new...
XtSetValues
The XtSetValues function starts with the resources specified for the Core widget fields and proceeds down the subclass chain to the widget. At each stage, it...
XtSetWMColormapWindows
XtSetWMColormapWindows returns immediately if widget is not realized or if count is zero. Otherwise, XtSetWMColormapWindows constructs an ordered list of...
XtStringConversionWarning
The XtStringConversionWarning function issues a warning message with name “conversionError”, type “string”, class ``XtToolkitError, and the default message...
XtToolkitThreadInitialize
If XtToolkitThreadInitialize was previously called, it returns. The application programmer must ensure that two or more threads do not simultaneously attempt to...
XtTranslateCoords
While XtTranslateCoords is similar to the Xlib XTranslateCoordinates function, it does not generate a server request because all the required information...
XtVaCreateArgsList
The XtVaCreateArgsList function allocates memory and copies its arguments into a single list pointer, which may be used with XtVaNestedList. The end of both...