封装一个Win32弹出提示框的函数
VOID CreateToolTip(
HWND hDlg,
DWORD dwIdNum,
LPBYTE lpbyTipMsg )
{

TOOLINFO tinfo;
HWND hWndTip;

hWndTip = CreateWindowEx(
0,
TOOLTIPS_CLASS,
(LPSTR)NULL,
TTS_ALWAYSTIP | TTS_NOPREFIX ,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
hDlg,
NULL,
ghInst,
NULL );


if( !hWndTip ){

return;
}


tinfo.cbSize = sizeof( TOOLINFO );
tinfo.uId = (UINT)GetDlgItem( hDlg, dwIdNum );
tinfo.lpszText = (LPTSTR)lpbyTipMsg;
tinfo.uFlags = TTF_IDISHWND | TTF_SUBCLASS;
tinfo.hwnd = hDlg;
tinfo.hinst = ghInst;


SendMessage(
hWndTip,
TTM_SETMAXTIPWIDTH,
0,
(LPARAM)(INT)500);


SendMessage(
hWndTip,
TTM_ADDTOOL,
0,
(LPARAM)( (LPTOOLINFO)&tinfo ));

return;
}

注意两点：1、STATIC控件ID不能是默认的ID（IDC_STATIC） 2、在设计器中将STATIC Notify通知消息设置为TRUE (属性面板)