TdxRichEditControlUndo Class

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

Declaration

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.

To localize the caption and hint displayed by UI elements linked to a TdxRichEditControlUndo action object, use the sdxRichEditCommandUndoMenuCaption and sdxRichEditCommandUndoDescription resource strings, respectively.