Change font, size and style of hint

Hints are everywhere. Almost every GUI element in Windows can be “hinted”. When user hover mouse over element, small yellow bubble with help text pops up. Is it possible to change hint “window” behavior? Of course…

To see how to change default color and timeouts of hint bubble, visit this post. To change font, size and style of the hint text, just use this code:

unit Unit1;
 
interface
 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;
 
type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
 
type
  TExHint = class(THintWindow)
  constructor Create(AOwner: TComponent); override;
end;
 
var
  Form1: TForm1;
 
implementation
 
{$R *.dfm}
 
constructor TExHint.Create(AOwner: TComponent);
begin
  inherited Create(AOwner);
  with Canvas.Font do
  begin
    Name  := 'Verdana';
    Size  := Size + 15;
    Style := [fsBold, fsItalic];
  end;
end;
 
procedure TForm1.FormCreate(Sender: TObject);
begin
  HintWindowClass  := TExHint;
end;
 
end.