5:
How can I change the tooltip's visual appearance

AxToolTip1 := (ComObj.CreateComObject(ComObj.ProgIDToClassID('Exontrol.ToolTip.1')) as EXTOOLTIPLib.ToolTip);
with AxToolTip1 do
begin
	VisualAppearance.Add(1,'c:\exontrol\images\normal.ebn');
	Appearance := EXTOOLTIPLib.AppearanceEnum($1000000);
	ShowToolTip('This is a tooltip that''s shown with a different <b>visual apparance</b>.',Nil,Nil,Nil,Nil);
end
4:
How can I get the tooltip being semi-transparent

AxToolTip1 := (ComObj.CreateComObject(ComObj.ProgIDToClassID('Exontrol.ToolTip.1')) as EXTOOLTIPLib.ToolTip);
with AxToolTip1 do
begin
	Transparency := 50;
	ShowToolTip('This is a tooltip that''s shown with a different <b>visual apparance</b>.',Nil,Nil,Nil,Nil);
end
3:
How can I get displayed a picture inside the tooltip

AxToolTip1 := (ComObj.CreateComObject(ComObj.ProgIDToClassID('Exontrol.ToolTip.1')) as EXTOOLTIPLib.ToolTip);
with AxToolTip1 do
begin
	set_HTMLPicture('pic1','c:\exontrol\images\zipdisk.gif');
	ShowToolTip('<c><img>pic1</img><br>This is a bit of tooltip with a picture attached.',Nil,Nil,Nil,Nil);
end
2:
How can I get notified once the user clicks a hyperlink inside the tooltip

// AnchorClick event - Occurs when an anchor element is clicked.
procedure TWinForm1.AxToolTip1_AnchorClick(sender: System.Object; e: AxEXTOOLTIPLib._IToolTipEvents_AnchorClickEvent);
begin
	with AxToolTip1 do
	begin
		OutputDebugString( 'You have clicked the anchor' );
		OutputDebugString( e.anchorID );
	end
end;

AxToolTip1 := (ComObj.CreateComObject(ComObj.ProgIDToClassID('Exontrol.ToolTip.1')) as EXTOOLTIPLib.ToolTip);
with AxToolTip1 do
begin
	ShowToolTip('This is a bit of text that''s displayed when <a A1>ShowToolTip</a> method is called.',Nil,Nil,Nil,Nil);
end
1:
How can I display the tooltip

AxToolTip1 := (ComObj.CreateComObject(ComObj.ProgIDToClassID('Exontrol.ToolTip.1')) as EXTOOLTIPLib.ToolTip);
with AxToolTip1 do
begin
	ShowToolTip('This is a bit of text that''s displayed when <b>ShowToolTip</b> method is called.',Nil,Nil,Nil,Nil);
end