MessageBox的详解

begin
    if Application.MessageBox('确实要退出吗?','提示',mb_yesno)=id_yes then
    close;
end;

MB_AbortRetryIgnore   
The message box contains three push buttons: Abort, Retry, Ａnd Ignore.
MB_OK   
The message box contains one push button: OK. This is the default.
MB_OkCancel   
The message box contains two push buttons: OK Ａnd Cancel.
MB_RetryCancel   
The message box contains two push buttons: Retry Ａnd Cancel.
MB_YESNO   
The message box contains two push buttons: Yes Ａnd No.
MB_YesNoCancel   
The message box contains three push buttons: Yes, No, Ａnd Cancel.]
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IDOK    1    The user chose the OK button.
IDCANCEL2    The user chose the Cancel button.
IDABORT    3    The user chose the Abort button.
IDRETRY    4    The user chose the Retry button.
IDIGNORE    5    The user chose the Ignore button.
IDYES    6    The user chose the Yes button.
IDNO    7    The user chose the No button.

if (MessageBox(strTemp.c_str(),"提示",MB_ICONINFORMATION|MB_YESNO) ==7)
  return;