windowquerydialog.c

上一个上传的有问题,这个是好的。visopsys包括系统内核和GUI的全部SOURCE code ,还包括一些基本的docs文档。里面src子目录对应所有SOURCE code.对于想研究操作系统的朋

// 
//  Visopsys
//  Copyright (C) 1998-2007 J. Andrew McLaughlin
//  
//  This library is free software; you can redistribute it and/or modify it
//  under the terms of the GNU Lesser General Public License as published by
//  the Free Software Foundation; either version 2.1 of the License, or (at
//  your option) any later version.
//
//  This library is distributed in the hope that it will be useful, but
//  WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
//  General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public License
//  along with this library; if not, write to the Free Software Foundation,
//  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
//  windowQueryDialog.c
//

// This contains functions for user programs to operate GUI components.

#include <string.h>
#include <sys/window.h>
#include <sys/errors.h>


/////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////
//
// Below here, the functions are exported for external use
//
/////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////


_X_ int windowNewQueryDialog(objectKey parentWindow, const char *title, const char *message)
{
  // Desc: Create a 'query' dialog box, with the parent window 'parentWindow', and the given titlebar text and main message.  The dialog will have an 'OK' button and a 'CANCEL' button.  If the user presses OK, the function returns the value 1.  Otherwise it returns 0.  If 'parentWindow' is NULL, the dialog box is actually created as an independent window that looks the same as a dialog.  This is a blocking call that returns when the user closes the dialog window (i.e. the dialog is 'modal').

  int status = 0;
  
  // Check params.  It's okay for parentWindow to be NULL.
  if ((title == NULL) || (message == NULL))
    return (status = ERR_NULLPARAMETER);

  if (windowNewChoiceDialog(parentWindow, title, message,
			    (char *[]) { "OK", "Cancel" }, 2, 0) == 0)
    // OK button
    return (status = 1);

  else
    // Cancel button or error or whatever
    return (status = 0);
}