procedure ShowBalloonTip(Control: TWinControl; Icon: integer; Title: pchar; Text: PWideChar;
BackCL, TextCL: TColor);
const
TOOLTIPS_CLASS = '
tooltips_class32';
TTS_ALWAYSTIP = $01;
TTS_NOPREFIX = $02;
TTS_BALLOON = $40;
TTF_SUBCLASS = $0010;
TTF_TRANSPARENT = $0100;
TTF_CENTERTIP = $0002;
TTM_ADDTOOL = $0400 + 50;
TTM_SETTITLE = (WM_USER + 32);
ICC_WIN95_CLASSES = $000000FF;
type
TOOLINFO =
packed record
cbSize: Integer;
uFlags: Integer;
hwnd: THandle;
uId: Integer;
rect: TRect;
hinst: THandle;
lpszText: PWideChar;
lParam: Integer;
end;
var
hWndTip: THandle;
ti: TOOLINFO;
hWnd: THandle;
begin
hWnd := Control.Handle;
hWndTip := CreateWindow(TOOLTIPS_CLASS,
nil,
WS_POPUP
or TTS_NOPREFIX
or TTS_BALLOON
or TTS_ALWAYSTIP,
0, 0, 0, 0, hWnd, 0, HInstance,
nil);
ti.cbSize := SizeOf(ti);
ti.uFlags := TTF_CENTERTIP
or TTF_TRANSPARENT
or TTF_SUBCLASS;
ti.hwnd := hwnd;
ti.lpszText := Text;
Windows.GetClientRect(hWnd, ti.rect);
SendMessage(hWndTip, TTM_SETTIPBKCOLOR, BackCL, 0);
SendMessage(hWndTip, TTM_SETTIPTEXTCOLOR, TextCL, 0);
SendMessage(hWndTip, TTM_ADDTOOL, 1, Integer(@ti));
SendMessage(hWndTip, TTM_SETTITLE, Icon
mod 4, Integer(Title));
SetWindowPos(hWndTip, HWND_TOP, 0, 0, 0,0, SWP_NOSIZE);
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
ShowBalloonTip(Button1, 1, '
Title',
'
Balloon tooltip,[url]http://kingron.myetang.com;[/url] updated by Calin', clWhite, clBlack);
end;