LCL index

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _

Name	Kind	Unit	What it is
`uChanged`	variable	`LCLType`
`UINT`	type	`LCLType`	A 32-bit unsigned integer.
`UINT_PTR`	type	`LCLType`	Unsigned integer type with same size as Pointer.
`ULONG_PTR`	type	`LCLType`	Alias for the PtrUInt type.
`UnbindFromParent`	procedure	`IntfGraphics`
`UnclippedClearTypePixel`	procedure	`LazFreeTypeIntfDrawer`
`UnclippedDrawPixel`	procedure	`LazFreeTypeIntfDrawer`
`UnclippedGetPixelAddress`	function	`LazFreeTypeIntfDrawer`
`Undo`	procedure	`GroupedEdit`	Reverses the last edit performed on the control value.
`Undo`	procedure	`StdCtrls`	Reverts the last editing action in the control.
`UndockControlForDocking`	procedure	`LDockTree`	UndockControlForDocking - frees anchors from parent and sibling controls.
`UndockHeight`	property	`Controls`	Height for the control when undocked.
`UndockWidth`	property	`Controls`	Width for the control when undocked.
`uNewState`	variable	`LCLType`
`UnhookPipeHandle`	procedure	`AsyncProcess`	Removes the pipe handler assigned for the process.
`UnhookProcessHandle`	procedure	`AsyncProcess`	Removes the process handler assigned for the process.
`UnicodeBlocks`	constant	`LCLUnicodeData`	This is an adapted version for ide/charactermapdlg.pas.
`UnicodeToGlyph`	function	`PostScriptUnicode`
`UnionRect`	function	`LCLIntf`	Computes the bounding box of the union of two rectangles.
`UniqueName`	function	`Forms`	Returns a Unique name for the designer, using the BaseName as a starting point.
`Unknown1`	variable	`ComCtrls`
`Unknown2`	variable	`ComCtrls`
`UnloadThemeData`	procedure	`Themes`	An empty implementation in TThemeServices.
`Unlock`	procedure	`Graphics`	Unlock or release a previously locked Canvas.
`UnLock`	procedure	`Graphics`	UnLock - method for releasing locked object.
`Unlock`	procedure	`LCLResCache`
`UnLock`	procedure	`PostScriptPrinter`
`UnLockEditor`	procedure	`Grids`	Decrements the lock count for the cell Editor following a call to LockEditor.
`UnlockRealizeBounds`	procedure	`Controls`	Enables sending bounds to the widget again, eventually updates the widget.
`UnlockSelectionChange`	procedure	`StdCtrls`	Removes a previous selection change lock.
`UnlockSelectionChangeEvent`	procedure	`ComCtrls`	Decrements the internal counter used to lock selection change events for the control.
`Unmerge`	procedure	`Menus`	Removes merged menu items for the specified menu.
`UnprepareCellHints`	procedure	`DBGrids`	Restores the record that was active when PrepareCellHints was called.
`UnprepareCellHints`	procedure	`Grids`	Re-implemented in descendent classes.
`UnRegisterActions`	procedure	`ActnList`	Unregisters the specified array of action class types.
`UnRegisterActionsProc`	constant	`ActnList`	Address of the routine used to unregister actions used in the action list editor in the Lazarus IDE.
`UnregisterAllItems`	procedure	`LazHelpIntf`
`UnRegisterChanges`	procedure	`ImgList`	Unregisters a ChangeLink object for change notifications.
`UnregisterGraphicClass`	procedure	`Graphics`	Removes all references to the specified TGraphic.
`UnregisterHelpDatabaseClass`	procedure	`LazHelpIntf`
`UnregisterItem`	procedure	`LazHelpIntf`	Removes the specified item from the search items for the help database.
`UnregisterListener`	procedure	`ImageListCache`	Removes the specified cache listener from the internal list.
`UnregisterSelf`	procedure	`LazHelpIntf`
`UnregisterSelf`	procedure	`LazHelpIntf`	Unregisters the help viewer in the LCL help system.
`UnregisterViewer`	procedure	`LazHelpIntf`	Unregisters the specified help viewer and removes it from the Items property.
`UnshareImage`	procedure	`Graphics`	Frees the shared image in the bitmap, and creates a new one.
`UnshareImage`	procedure	`Graphics`	Unshares the shared image when the content in the icon is changed.
`UnshareImage`	procedure	`Graphics`	Unshares a shared image when its handle is changed or the save stream is freed.
`Unused`	variable	`Controls`	Padding for alignment.
`Unused`	variable	`Controls`
`Unused`	variable	`Controls`
`Unused`	variable	`Controls`	Inserted for alignment only.
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused`	variable	`LMessages`
`Unused1`	variable	`LMessages`
`Unused1`	variable	`LMessages`
`Unused2`	variable	`Controls`
`Unused2`	variable	`LMessages`
`Unused2`	variable	`LMessages`
`Unused2`	variable	`LMessages`
`Unused2`	variable	`LMessages`
`Unused2`	variable	`LMessages`
`UnusedL`	variable	`LMessages`
`UnusedMsg`	variable	`Controls`
`UnusedMsg`	variable	`Controls`
`UnusedMsg`	variable	`Controls`
`UnusedMsg`	variable	`Controls`	Padding added for alignment on 64-bit platforms.
`UnusedMsg`	variable	`Controls`
`UnusedMsg`	variable	`Forms`	Padding added for alignment on 64-bit platforms.
`UnusedMsg`	variable	`Forms`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`UnusedMsg`	variable	`LMessages`
`uOldState`	variable	`LCLType`
`Update`	function	`ActnList`	Calls the inherited method when Action has been assigned.
`Update`	function	`ActnList`	Signals an available OnUpdate event handler to update values in the Action.
`Update`	procedure	`ComboEx`	Updates the collection when the specified item has been changed.
`Update`	procedure	`ComboEx`	Performs a notification when an item in the collection has been changed.
`Update`	procedure	`ComCtrls`	Updates the specified item in the collection, and updates the cool bar when needed.
`Update`	procedure	`ComCtrls`
`Update`	procedure	`ComCtrls`	Performs actions needed when a collection item has been changed.
`Update`	procedure	`ComCtrls`	Checks whether the collection update is actually need and calls the inherited method.
`Update`	procedure	`ComCtrls`
`Update`	procedure	`ComCtrls`	Ensures that observers are notified when he specified collection item has been changed.
`Update`	procedure	`ComCtrls`	Redraws the associated TreeView control if an update is not already in progress.
`Update`	procedure	`Controls`	Redraws invalidated parts of the control immediately.
`Update`	procedure	`Controls`	Redraws invalidated parts of the control immediately.
`Update`	procedure	`DBGrids`	Redraws the Grid control that owns the column collection.
`Update`	procedure	`Grids`	Notifies the Grid using the collection when a column is updated.
`UpdateAction`	function	`ActnList`	Examines and updates the target for the specified Action.
`UpdateAction`	function	`DBCtrls`	Updates the specified action to reflect the current state in the linked dataset.
`UpdateAction`	function	`DBCtrls`	Updates the state for the specified action.
`UpdateAction`	function	`DBCtrls`	Updates the specified action to reflect the current state in the linked dataset.
`UpdateAction`	function	`DBCtrls`	Updates the state for the specified action.
`UpdateAction`	function	`DBCtrls`	Updates the specified action to reflect the current state in the linked dataset.
`UpdateAction`	function	`DBCtrls`	Updates the specified action to reflect the current state in the linked dataset.
`UpdateAction`	function	`DBCtrls`	Updates the specified action to reflect the current state in the linked dataset.
`UpdateAction`	function	`DBCtrls`	Updates the specified action to reflect the current state in the linked dataset.
`UpdateAction`	function	`DBCtrls`	Updates the specified action to reflect the current state in the linked dataset.
`UpdateAction`	function	`DBCtrls`	Updates the specified action to reflect the current state in the linked dataset.
`UpdateAction`	function	`DBExtCtrls`	Updates the action when it handles the specified operation.
`UpdateAction`	function	`DBGrids`	Updates the specified action using the DataLink for the grid control.
`UpdateAction`	function	`Forms`	Signals an OnActionUpdate handler (when assigned).
`UpdateActions`	procedure	`Forms`	Asks all components on the form to update their actions.
`UpdateActive`	procedure	`DBGrids`	UpdateActive redraws the control when the active row in the dataset is changed.
`UpdateAll`	procedure	`Controls`	Updates the internal TDockTreeFlags to reflect the update status for the control
`UpdateAll`	procedure	`ExtCtrls`	Updates both the Items and the number of controls per line.
`UpdateAll`	procedure	`ExtCtrls`	Updates the radio buttons and the number of radio buttons per line for the control.
`UpdateAnchorRules`	procedure	`Controls`	Update the rules for anchoring the control.
`UpdateAutoSizeColumns`	procedure	`DBGrids`	Calculates the width for auto-sized columns and refreshes the grid control.
`UpdateBaseBounds`	procedure	`Controls`	Updates the base bounds for the control; essential if there has been a lot of resizing.
`UpdateBorderStyle`	procedure	`Grids`	Updates the border style used for the control.
`UpdateButtons`	procedure	`DBCtrls`	UpdateButtons - if the position of the buttons need to be changed, does this, then updates the status of the buttons (see ActiveChanged).
`UpdateCaption`	procedure	`LDockTree`	UpdateCaption - brings caption up-to-date if there have been changes.
`UpdateColumn`	procedure	`ShellCtrls`
`UpdateControl`	procedure	`ComCtrls`	Causes the tool bar to adjust the size and position for its Buttons and Controls.
`UpdateControl`	procedure	`StdActns`	Updates the internal Control to the value in NewControl.
`UpdateControlState`	procedure	`Controls`	Updates the visible state for the control, and notifies the widgetset class when available.
`UpdateCurrentView`	procedure	`Graphics`	UpdateCurrentView - updates the current appearance of the Icon.
`UpdateCursor`	procedure	`ExtCtrls`	Updates the cursor shape to reflect the ResizeAnchor for the splitter.
`UpdateData`	procedure	`DBCtrls`	UpdateData - implements any pending changes in the data.
`UpdateData`	procedure	`DBCtrls`	UpdateData - method for applying any pending changes to the data.
`UpdateData`	procedure	`DBCtrls`	UpdateData - examines the State to see whether it has changed.
`UpdateData`	procedure	`DBCtrls`	Applies the changed value for the control to the field in its linked dataset.
`UpdateData`	procedure	`DBCtrls`	Performs actions needed to validate and store the content for the image control.
`UpdateData`	procedure	`DBCtrls`	Performs actions needed to update the linked dataset when the value for the control has changed.
`UpdateData`	procedure	`DBCtrls`	Signals the OnUpdateData event handler for pending changes to the linked dataset.
`UpdateData`	procedure	`DBCtrls`	UpdateData - copies the local data from the corresponding entry from the lookup field.
`UpdateData`	procedure	`DBCtrls`	Updates the data in the lookup dataset for the control.
`UpdateData`	procedure	`DBCtrls`	UpdateData - if data changed, copy new text via the datalink.
`UpdateData`	procedure	`DBCtrls`	Updates the linked dataset using the current selection in the control.
`UpdateData`	procedure	`DBCtrls`	Signals the OnUpdateData event handler for pending changes to the linked dataset.
`UpdateData`	procedure	`DBGrids`	Signals the OnUpdateData event handler when assigned.
`UpdateData`	procedure	`DBGrids`	UpdateData is used to perform pending updates for the selected cell.
`UpdateDefaultCancel`	procedure	`StdCtrls`	Updates the Default and Cancel properties in the parent form.
`UpdateDefaultItemHeight`	procedure	`ComCtrls`	Calculates and updates the value in the DefaultItemHeight property.
`UpdateDescription`	property	`IntfGraphics`
`UpdateDescription`	property	`IntfGraphics`
`UpdateDescription`	property	`IntfGraphics`
`UpdateDescription`	property	`IntfGraphics`
`UpdateDescription`	property	`IntfGraphics`
`UpdateDescription`	property	`IntfGraphics`
`UpdateDockCaption`	procedure	`ComCtrls`	Updates page captions to reflect the captions for docked clients controls.
`UpdateDockCaption`	procedure	`Controls`	Updates the Caption to reflect the names for the docked clients.
`UpdateDockCaption`	procedure	`Forms`	Gets the combined Caption for DockClients on the form.
`UpdateFileList`	procedure	`FileCtrl`	Loads the list of files and/or directories for the list box control.
`UpdateFormatSettings`	property	`Forms`	Indicates if application format settings are updated when changed in a widgetset class.
`UpdateFromHandle`	procedure	`Graphics`	Frees the existing icon image and reloads it from the specified handle.
`UpdateFromImage`	procedure	`Graphics`	Updates the icon image from the specified raw image data.
`UpdateGridCounts`	function	`DBGrids`	Gets the total number of visible columns or fields for the grid control.
`UpdateHandle`	function	`Graphics`	Updates the handle in the shared icon image top the specified value.
`UpdateHandleObject`	procedure	`ComCtrls`	Updates the handle for the status bar when one or all of the panels on the control need to be updated.
`UpdateHandleObjects`	procedure	`Graphics`	Renews handles for Fonts, Pens, and Brushes.
`UpdateHandles`	function	`Graphics`	Sets the handles for the image and mask in the shared Bitmap to the specified values.
`UpdateHandles`	function	`Graphics`	Sets the Bitmap and Mask handles for the current image in the icon.
`UpdateHandles`	function	`Graphics`	UpdateHandles - returns True when Bitmap and Mask handles have been updated.
`UpdateHandles`	function	`Graphics`	Updates image handles when the raw image data is loaded.
`UpdateHints`	procedure	`DBCtrls`	UpdateHints - reloads the default hints and modifies any that have been changed.
`UpdateHorzScrollBar`	procedure	`Grids`	Updates the horizontal scroll bar to use the specified range, page, and position.
`UpdateImage`	procedure	`Menus`	Updates the image associated with the menu item.
`UpdateImages`	procedure	`Menus`	Update the images for the menu item and its child items.
`UpdateInsertMark`	procedure	`ComCtrls`	Sets or removes an insertion mark at the specified position based on the values in Options.
`UpdateInterfaceConstraints`	procedure	`Controls`	Applies size constraints from the specified Control to the widgetset class instance.
`UpdateInternalObjectList`	procedure	`ExtCtrls`	Updates the control when the Items property is changed.
`UpdateInternalObjectList`	procedure	`ExtCtrls`	Calls the private UpdateItems method to add or remove radio buttons for the grouped control.
`UpdateItems`	procedure	`Menus`	UpdateItems has an empty implementation in the current LCL version.
`UpdateMainControl`	procedure	`LDockTree`	UpdateMainControl - sets MainControl to a new value.
`UpdateMainControlInParents`	procedure	`LDockTree`	UpdateMainControlInParents - make sure all parents recognize the presence of MainControl.
`UpdateMainForm`	procedure	`Forms`	Makes the specified form the MainForm in the Application.
`UpdateMask`	procedure	`ExtCtrls`	Updates the internal Monochrome bitmap used as a mask to detect mouse click events on the shaped control.
`UpdateMemoryLabel`	procedure	`CalcForm`	Updates the Memory indicator to reflect a non-zero value present in the Memory property.
`UPDATEMETADATASTATES`	type	`TmSchema`
`UpdateMonitors`	procedure	`Forms`	Rebuilds the list of available monitors.
`UpdateMouseCursor`	procedure	`Controls`	Changes the cursor shape to the value in the Cursor property.
`UpdateMultiSelList`	procedure	`ComCtrls`	Updates the specified list item in the multi-selection list for the control.
`UpdateOpaque`	procedure	`Forms`	Updates control style flags to reflect the transparency for the frame.
`UpdateOpaque`	procedure	`StdCtrls`	Updates the control style when the parent background is used.
`UpdateParentColorChange`	procedure	`ExtCtrls`	Updates the control to reflect changes to the ParentColor property.
`UpdateParentColorChange`	procedure	`Forms`	Updates ControlStyle flags to set the opacity for the control.
`UpdatePosition`	procedure	`PairSplitter`	Updates the value in the Position property.
`UpdatePreview`	procedure	`ExtDlgs`	Loads the preview image for the current file name, or clears the preview image when the file is not usable.
`UpdateRadioButtonStates`	procedure	`DBCtrls`	Updates the linked dataset to reflect the current radio button selected in the control.
`UpdateRadioButtonStates`	procedure	`ExtCtrls`	UpdateRadioButtonStates including any pending changes.
`UpdateRecord`	procedure	`DBCtrls`	Updates the record in the linked dataset with the value for the control.
`UpdateReference`	procedure	`ImgList`	Forces the reference counted image list for the resolution to be freed and recreated.
`UpdateRegion`	procedure	`Forms`	Updates the Window Region fir the hint window.
`UpdateRolesForForm`	procedure	`Controls`	Internal method called by a Form when its DefaultControl or CancelControl has changed.
`UpdateRolesForForm`	procedure	`StdCtrls`	Internal method called by a Form when its DefaultControl or CancelControl has changed.
`UpdateScreen`	procedure	`Forms`	Updates the value for the PixelsPerInch property.
`UpdateScrollBar`	procedure	`Forms`	Updates the state and position for the scroll bar on the associated control.
`UpdateScrollbars`	procedure	`Forms`	Initializes or updates the scroll bars for the control.
`UpdateSelectionRange`	procedure	`Grids`	Updates the selection range when the current selection in the grid has changed.
`UpdateShowing`	procedure	`Controls`	Updates the Showing property with the visibility for the control, its Parents, and its child controls.
`UpdateShowing`	procedure	`Forms`	Configures and position the form when its visibility has been changed.
`UpdateSize`	procedure	`StdCtrls`	Adjusts the size for the control based on settings in AutoSize and OptimalFill.
`UpdateSpacing`	procedure	`GroupedEdit`	Updates border spacing in BaseEditor for the Layout and visibility of the Buddy control.
`UpdateState`	procedure	`Buttons`	Updates internal members used to track state changes in the control.
`UpdateState`	procedure	`ComCtrls`	Updates the State property in one or more of the Sections on the header control.
`UpdateTabImages`	procedure	`ComCtrls`	Calls the corresponding method in Tabs.
`UpdateTabImages`	procedure	`ComCtrls`	UpdateTabImages - bring the tab images up to date.
`UpdateTabProperties`	procedure	`ComCtrls`	Applies property changes for all of the pages on the tab control to the widgetset class instances.
`UpdateTarget`	procedure	`DBActns`	Enables or disables the action based on the state of the dataset in the target.
`UpdateTarget`	procedure	`DBActns`	Enables or disables the action based on the state of the dataset in the target.
`UpdateTarget`	procedure	`DBActns`	Enables or disables the action based on the state of the dataset in the target.
`UpdateTarget`	procedure	`DBActns`	Enables or disables the action based on the state of the dataset in the target.
`UpdateTarget`	procedure	`DBActns`	Enables or disables the action based on the state of the dataset in the target.
`UpdateTarget`	procedure	`DBActns`	Enables or disables the action based on the state of the dataset in the target.
`UpdateTarget`	procedure	`DBActns`	Enables or disables the action based on the state of the dataset in the target.
`UpdateTarget`	procedure	`DBActns`	Enables or disables the action based on the state of the dataset in the target.
`UpdateTarget`	procedure	`DBActns`	Enables or disables the action based on the state of the dataset in the target.
`UpdateTarget`	procedure	`DBActns`	Enables or disables the action based on the state of the dataset in the target.
`UpdateTarget`	procedure	`StdActns`	Updates the enabled state for the action.
`UpdateTarget`	procedure	`StdActns`	Updates the enabled state for the action.
`UpdateTarget`	procedure	`StdActns`	Updates the enabled state for the action.
`UpdateTarget`	procedure	`StdActns`	Updates the enabled state for the action.
`UpdateTarget`	procedure	`StdActns`	Updates the enabled state for the action.
`UpdateTarget`	procedure	`StdActns`	Updates the enabled state for the action.
`UpdateTarget`	procedure	`StdActns`	Notify client controls when the action updates itself.
`UpdateTarget`	procedure	`StdActns`	Notify client controls when the action updates itself.
`UpdateTarget`	procedure	`StdActns`	Updates the Enabled property for the action based on values in the Target control.
`UpdateTarget`	procedure	`StdActns`	Updates the Enabled state for the action based on values in SearchFind and Target.
`UpdateThemes`	procedure	`Themes`	Reloads theme elements and details when UseThemes is True.
`UpdateTimer`	procedure	`CustomTimer`	Updates the Timer to reflect the current properties.
`UpdateTranslation`	procedure	`LCLTranslator`	Updates translations for string properties in a persistent object.
`UpdateVertScrollbar`	procedure	`Grids`	Updates the vertical scroll bar to use the specified visibility, range, and page values.
`UpdateView`	procedure	`ShellCtrls`	Reloads the contents for the list view control and restores the Selected item.
`UpdateView`	procedure	`ShellCtrls`	Reloads the nodes for tree view control and synchronizes an associated ShellListView control.
`UpdateVisible`	procedure	`Forms`	Asks the widgetset to update its task bar entries.
`UpdateVisibleToolbar`	procedure	`ComCtrls`	Calls the corresponding method in the tool bar for the button.
`UpdateWindow`	function	`InterfaceBase`	Forces an immediate repaint of a window, if required.
`UpdateWindow`	function	`LCLIntf`	Forces an immediate repaint of a window, if required.
`UpdateWindowState`	procedure	`Forms`	UpdateWindowState is an empty implementation in TCustomForm.
`UpdateWSIcon`	procedure	`Menus`	Updates the widgetset class with the values in HasIcon and Bitmap.
`UpdatingStatusBar`	function	`ComCtrls`	Returns True if the status bar is being updated.
`UPHORZSTATES`	type	`TmSchema`
`UPHZS_DISABLED`	constant	`TmSchema`
`UPHZS_HOT`	constant	`TmSchema`
`UPHZS_NORMAL`	constant	`TmSchema`
`UPHZS_PRESSED`	constant	`TmSchema`
`UpperLeft`	variable	`LCLType`
`UPS_DISABLED`	constant	`TmSchema`
`UPS_HOT`	constant	`TmSchema`
`UPS_NORMAL`	constant	`TmSchema`
`UPS_PRESSED`	constant	`TmSchema`
`UpsideDown`	variable	`IntfGraphics`
`UPSTATES`	type	`TmSchema`
`URL`	property	`Dialogs`	Universal Resource Locator (or identifier) for a hyperlink clicked on the task dialog.
`URL`	property	`LazHelpIntf`	URL used to access content for the help node.
`URLFilenameIsAbsolute`	function	`LazHelpIntf`	Indicates if the specified URL contains an absolute file path.
`URLPathToFilename`	function	`LazHelpIntf`
`URLValid`	function	`LazHelpIntf`	Indicates if the URL for the help node is valid.
`UseBGThemes`	function	`Forms`	Indicates if a background from theme services is used when drawing the hint window.
`UseBuiltInIcons`	property	`ShellCtrls`	Indicates if icons provided by the OS or platform are used for items in the list.
`UseBuiltinIcons`	property	`ShellCtrls`	Indicates if OS-provided icons are used for entries in the Shell control.
`UseDefaultApp`	property	`StdActns`	Indicates if the default application should be used to open the file for the action.
`UsedFormatSettings`	function	`EditBtn`	Gets the effective format settings used to format the value for the time edit control.
`UseDockManager`	property	`Controls`	Determines whether a DockManager is used for this DockSite.
`UseDockManager`	property	`ExtCtrls`	Determines whether a DockManager is used for this DockSite.
`UseDockManager`	property	`ExtCtrls`	Determines whether a DockManager is used for this DockSite.
`UseDockManager`	property	`Forms`	Determines whether a DockManager is used for this DockSite.
`UsedTimeAMString`	function	`EditBtn`	Gets the suffix used for an ante meridiem (before midday) time value in the control.
`UsedTimeFormat`	function	`EditBtn`	Gets the effective short time format used for the Time value in the control.
`UsedTimePMString`	function	`EditBtn`	Gets the suffix used for a post meridiem (after midday) time value in the control.
`UsedTimeSeparator`	function	`EditBtn`	Gets the effective time separator character used in the short time format settings.
`UseFGThemes`	function	`Forms`	Indicates if theme services are used for the foreground rendered for the hint window.
`UserChoice`	property	`Dialogs`	Contains the modal result value selected by the user.
`UserData`	variable	`LazRegions`	Contains an available link to another object.
`UserData`	variable	`LMessages`
`UseRightToLeftAlignment`	function	`Controls`	True when BiDiMode is bdRightToLeft.
`UseRightToLeftAlignment`	function	`Menus`	UseRightToLeftAlignment - returns True if Right-to-Left alignment is being used.
`UseRightToLeftAlignment`	function	`StdCtrls`	True when BiDiMode is bdRightToLeft.
`UseRightToLeftReading`	function	`Controls`	True when BiDiMode is not bdLeftToRight.
`UseRightToLeftReading`	function	`Menus`	Indicates if right-to-left reading is used for the menu.
`UseRightToLeftScrollBar`	function	`Controls`	True when BiDiMode indicates right-to-left reading is in use.
`UseSystemFont`	property	`ComCtrls`	Indicates the System font is used for the control.
`UseThemes`	function	`Themes`	Always returns False.
`UseXORFeatures`	property	`DBGrids`	When True, the dotted focus rectangle is painted using an XOR raster operation.
`UseXORFeatures`	property	`Grids`	When True, the dotted focus rectangle is painted using an XOR raster operation.
`UseXORFeatures`	property	`Grids`	When True, the dotted focus rectangle is painted using an XOR raster operation.
`UseXORFeatures`	property	`Grids`	When True, the dotted focus rectangle is painted using an XOR raster operation.
`UseXORFeatures`	property	`Grids`	When True, the dotted focus rectangle is painted using an XOR raster operation.
`UseXORFeatures`	property	`Grids`	When True, the dotted focus rectangle is painted using an XOR raster operation.
`UseXORFeatures`	property	`ValEdit`	When True, the dotted focus rectangle is painted using an XOR raster operation.
`using_the_printer`	topic	`Printers`	Using the Printer
`UTF8KeyPress`	procedure	`Controls`	Signals the OnUTF8KeyPress event handler (when assigned).
`UTF8KeyPress`	procedure	`CustomDrawnControls`
`UTF8KeyPress`	procedure	`CustomDrawnControls`
`UTF8KeyPress`	procedure	`DBCtrls`	Handles UTF-8 characters for the data-aware control.
`UTF8KeyPress`	procedure	`DBCtrls`	Handles UTF-8 characters for the data-aware control.
`UTF8KeyPress`	procedure	`Forms`	Defines the method used to handle a key press event for a UTF-8-encoded character.
`Utf8KeyPress`	procedure	`MaskEdit`	Handles a key press with the specified UTF-8 character value.
`UTF8KeyPress`	procedure	`StdCtrls`	UTF8KeyPress converts character case if required then calls the inherited method.
`UTF8KeyPress`	procedure	`StdCtrls`	Implements the handler for UTF8 key press events in the control.

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.