TRichEdit.HideSelection Property

Determines whether the visual indication of the selected text remains when focus shifts to another control.

Pascal

property HideSelection: Boolean;

C++

__property Boolean HideSelection;__property Boolean HideSelection;

Description

Set HideSelection to false when it is important to provide visual feedback of the selected portion of the text even when the edit control does not have focus. Set HideSelection to true to make the visual indication of selection appear only when the edit control has focus. HideSelection does not affect the actual value of the selection, only the visual indication. Always setting HideSelection to false can make forms containing many edit controls look busy.

C++ Examples:

Copy Code

/*
This example needs only a blank form.  Three Rich Edit
controls are placed vertically on the form, each contain a
line of text, and the second form has HideSelection set to
false.  Try tabbing between the three Rich Edit controls and
observe the effect on the selected text.
*/ 
#include <ComCtrls.hpp>

void __fastcall TForm1::FormCreate(TObject *Sender)
{
  for (int I = 0; I <= 2; I++)
  {
    TRichEdit *pRich = new TRichEdit(this);
    pRich->Parent = this;
    pRich->Top = pRich->Height * I;
    pRich->Text = "This text will take the focus.";
    pRich->SelStart = 0;
    pRich->SelLength = pRich->Text.Length();
    if (I == 1)
      pRich->HideSelection = false;
  }
}

Delphi Examples:

Copy Code

{
HideSelection, Height example
This example needs only a blank form. Three Rich Edit
controls are placed vertically on the form, each contain a
line of text, and the second form has HideSelection set to
false.  Try tabbing between the three Rich Edit controls and
observe the effect on the selected text.
}
uses ComCtrls;

procedure TForm1.FormCreate(Sender: TObject);
var
  I: Integer;
begin
  for I := 0 to 2 do
    with TRichEdit.Create(Self) do
    begin
      Parent := Self;
      Top := Height * I;
      Text := 'This text will take the focus.';
      SelStart := 0;
      SelLength := Length(Text);
      if (I = 1) then
        HideSelection := False;
    end;
end;