Introduction Class TWPCustomRTFControl Class TWPRichText Class TWPCustomRichText Class TDBWPRichText Class TWPCustomRtfEdit Class TWPPreview Class TWPRichTextLabel
Class TWPToolbar Class TWPToolButton Class TWPToolPanel Class TWPVertRuler Class TWPRuler Class TWPGutter
Class TTextHeader Class TWPRTFSectionProps Class TWPOwnedCharAttrInterface Class TWPStoredCharAttrInterface Class TWPAbstractCharAttrInterface Class TWPAbstractCharParAttrInterface Class TWPCursorCharAttrInterface Class TWPFoundTextAttrInterface Class TWPCurrentWritingmodeAttrInterface
Class TWPRTFReaderEx Class TWPRTFReader Class TWPRTFWriter Class TWPRTFWriterEx Class TWPToolsReaderWriter Class TWPTextWriter Class TWPHTMLWriter Class TWPTOOLSWriter Class TWPUNITextWriter Class TWPCustomTextWriter Class TWPTextReader Class TWPHTMLReader Class TWPTOOLSReader Class TWPUNITextReader Class TWPCustomTextReader
Class TWPRTFDataCollectionBase Class TWPRTFDataCollection Class TWPRTFDataBlock Class TWPRTFDataBlockEd Class TParagraph Class TWPTextStyle Class TWPORTFTextBox Class TWPObjectField Class TWPObject Class TWPRTFEngineBasis Class TWPRTFEngineEdit
Class TWPManageHeaderFooterDlg Class TWPPagePropDlg Class TWPParagraphBorderDlgEx Class TWPParagraphBorderDlg Class TWPTabDlgPrp Class TWPOneStyleDlg Class TWPBulletDlg Class TWPSymbolDlg Class TWPSymbolDlgEx Class TWPSpellCheckDlg Class TWPStringDlg Class TWPStyleDlg Class TWPCustomAttrDlg Class TWPSearchReplaceDlg Class TWPParagraphPropDlg Class TWPPreviewDlg Class TWPReportBandsDialog Class TWPTableDlg
Class TWPSuperMerge Class TDBWPEvalEngine Class TWPEvalEngine Class TWPTableProducer Class TWPBand Class TWPDataSetAbstractAdapter
Class TWPSvgXMLNode Class TWPXMLOneLevel Class TWPCustomXMLInterface Class TWPXMLInterface Class TWPLanguageControl Class TWPXMLTree Class TWPSVGXMLTree Class TWPCustomXMLTree
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Function TWPCustomRtfEdit.GetHistoryChars(Count:Integer) : string

Unit: WPCTRMemo
Class: WPCTRMemo.TWPCustomRtfEdit

Parameters

  • Count:Integer

Returns

The type of the result value is string.

Description

This functions retrieves the last characters which were typed since the last movement of the cursor. The maximum length of the string which can be retrieved is count with an upper limit of WPHistoryMaxCount (=40).
This function is used by the auto-detect-hyperlinks feature () and can also be very useful to display hints when certain character combinations are pressed. The history is implemented using an efficient circular buffer. Backspace will delete the last typed character.