Delphi VCL highlights word in visual components programmatically
Highlights word in a RichView component programmatically:
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uses Winapi.RichEdit; procedure SetTextColor(oRichEdit : TRichEdit; sText : String; rAttributes : TTextAttributes); var iPos : Integer; iLen : Integer; Format: CHARFORMAT2; begin FillChar(Format, SizeOf(Format), 0); Format.cbSize := SizeOf(Format); Format.dwMask := CFM_BACKCOLOR; Format.crBackColor := rAttributes.BackColor; iPos := 0; iLen := Length(oRichEdit.Lines.Text) ; iPos := oRichEdit.FindText(sText, iPos, iLen, []); while iPos > -1 do begin oRichEdit.SelStart := iPos; oRichEdit.SelLength := Length(sText) ; oRichEdit.SelAttributes.Color := rAttributes.Font.Color; oRichEdit.SelAttributes.Size := rAttributes.Font.Size; oRichEdit.SelAttributes.Style := rAttributes.Font.Style; oRichEdit.SelAttributes.Name := rAttributes.Font.Name; oRichEdit.Perform(EM_SETCHARFORMAT, SCF_SELECTION, Longint(@Format)); iPos := oRichEdit.FindText(sText,iPos + Length(sText),iLen, []) ; end; end; |
How to highlitgh full cell in a DBGrid:
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procedure TfrmRuleCreator.DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect; DataCol: Integer; Column: TColumn; State: TGridDrawState); var mstr: String; I : Integer; currValue: string; begin currValue := Column.Field.AsString.ToUpper().Trim; if (Length(currValue) > 3)and(Column.Field.FieldName.ToUpper <> 'NOTE') then Begin If FDMemTable1.FieldByName('NOTE').AsString.ToUpper.IndexOf(currValue) <> -1 then Begin DBGrid1.Canvas.Brush.Color := clYellow; End End; if Column.Field.FieldName.ToUpper = 'NOTE' then DBGrid1.Canvas.Brush.Color := $00D7FFD7; DBGrid1.DefaultDrawColumnCell(Rect, DataCol, Column, State); end; |
