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.GetTextScreenRect(par:TParagraph; posinpar:Integer; X:Integer; Y:Integer; W:Integer; H:Integer; CharOffset:Boolean) : Boolean

Unit: WPCTRMemo
Class: WPCTRMemo.TWPCustomRtfEdit

Parameters

  • par:TParagraph
  • posinpar:Integer
  • X:Integer
  • Y:Integer
  • W:Integer
  • H:Integer
  • CharOffset:Boolean

Returns

The type of the result value is Boolean.

Description

This function calculates the coordinates of the line which contains a certain position of a certain paragraph in screen coordinates. This function is used by the ruler to update the text area but can also be used to invert a block on the screen or for similar effects. If the parameter CharOffset = TRUE this function calculates the position of a single character.
var x,y,w,h : Integer; begin WPRichText1.GetTextScreenRect( WPRichText1.Memo.Cursor.active_paragraph, WPRichText1.Memo.Cursor.active_posinpar, x,y,w,h ); WPRichText1.Canvas.Brush.Style := bsClear; WPRichText1.Canvas.Pen.Color := clRed; WPRichText1.Canvas.Rectangle(x,y,x+w,y+h); end;