TdxRichEditControlUndo Class

An action object that corresponds to the Undo command provided by the Rich Edit control.

Declaration

delphi

TdxRichEditControlUndo = class(
    TdxRichEditControlAction
)

Remarks

This class does not introduce any new public members. Executing a TdxRichEditControlUndo action object cancels the last change applied to the active document’s content.

UI elements linked to a TdxRichEditControlUndo action object, are enabled only if the following conditions are met:

The Rich Edit control’s ReadOnly property is set to False.
The Rich Edit control’s Options.DocumentCapabilities.Undo property is set to TdxDocumentCapability.Default or TdxDocumentCapability.Enabled.
There is at least one action in the undo action stack.

Inheritance

TObject TPersistent TComponent TBasicAction TContainedAction TCustomAction TAction TdxBasicAction TdxRichEditControlAction TdxRichEditControlUndo