Hola,
Seguramente no te sirva, pero, yo uso la siguiente unidad para manejar el "hint" de mis programas, y, en este caso sí que es posible cambiar el tamaño de la fuente, entre otras cosas.
Código Delphi
[-]
unit ProgramHint;
interface
uses
Vcl.Controls,
System.Classes,
Winapi.Windows;
type
TProgramHint = class(THintWindow)
private
procedure AppHint(var HintStr: string; var CanShow:
Boolean; var HintInfo: Vcl.Controls.THintInfo);
protected
procedure Paint(); override;
public
function ShouldHideHint(): Boolean; override;
procedure ActivateHint(Rect: TRect; const AHint: string); override;
public
constructor Create(AOwner: TComponent); override;
end;
implementation
uses
Vcl.Forms,
System.Types;
constructor TProgramHint.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
Canvas.Font.Size := 9;
Canvas.Font.Name := 'Tahoma';
Application.OnShowHint := Self.AppHint;
end;
procedure TProgramHint.Paint();
var
R: TRect;
begin
R := Rect(10, 10, ClientRect.Right, ClientRect.Bottom);
DrawText(Canvas.handle, Caption, Length(Caption), R, DT_WORDBREAK);
end;
function TProgramHint.ShouldHideHint(): Boolean;
begin
Result := True;
end;
procedure TProgramHint.AppHint(var HintStr: string;
var CanShow: Boolean; var HintInfo: Vcl.Controls.THintInfo);
begin
HintInfo.HintMaxWidth := 300;
HintInfo.HideTimeout := 20 * 1000; end;
procedure TProgramHint.ActivateHint(Rect: TRect; const AHint: string);
begin
if ProgramConfig.GUI.ShowHints then
begin
Inc(Rect.Bottom, 20);
Inc(Rect.Right, 20);
UpdateBoundsRect(Rect);
inherited;
end;
end;
initialization
Application.ShowHint := False;
HintWindowClass := TProgramHint;
Application.ShowHint := True;
end.
Sé que no respondo a tu pregunta, pero, igual puede servir de algo aún así.