base/applications/regedit/error.c

   1 /*
   2  * Regedit errors, warnings, informations displaying
   3  *
   4  * Copyright (C) 2010 Adam Kachwalla <geekdundee@gmail.com>
   5  * Copyright (C) 2012 Hermès Bélusca - Maïto <hermes.belusca@sfr.fr>
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #include "regedit.h"
  23
  24 int ErrorMessageBox(HWND hWnd, LPCWSTR lpTitle, DWORD dwErrorCode, ...)
  25 {
  26     int iRet = 0;
  27     LPWSTR lpMsgBuf = NULL;
  28     DWORD Status = 0;
  29
  30     va_list args = NULL;
  31     va_start(args, dwErrorCode);
  32
  33     Status = FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
  34                             NULL,
  35                             dwErrorCode,
  36                             MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
  37                             (LPWSTR)&lpMsgBuf,
  38                             0,
  39                             &args);
  40
  41     va_end(args);
  42
  43     iRet = MessageBoxW(hWnd, (Status && lpMsgBuf ? lpMsgBuf : L"Error displaying error message."), lpTitle, MB_OK | MB_ICONERROR);
  44
  45     if (lpMsgBuf) LocalFree(lpMsgBuf);
  46
  47     /* Return the MessageBoxW information */
  48     return iRet;
  49 }
  50
  51 int InfoMessageBox(HWND hWnd, UINT uType, LPCWSTR lpTitle, LPCWSTR lpMessage, ...)
  52 {
  53     int iRet = 0;
  54     LPWSTR lpMsgBuf = NULL;
  55
  56     va_list args = NULL;
  57     va_start(args, lpMessage);
  58
  59     if (lpMessage)
  60     {
  61         SIZE_T strLen = _vscwprintf(lpMessage, args);
  62
  63         /* Create a buffer on the heap and zero it out (LPTR) */
  64         lpMsgBuf = (LPWSTR)LocalAlloc(LPTR, (strLen + 1) * sizeof(WCHAR));
  65         if (lpMsgBuf)
  66         {
  67             _vsnwprintf(lpMsgBuf, strLen, lpMessage, args);
  68         }
  69     }
  70
  71     va_end(args);
  72
  73     iRet = MessageBoxW(hWnd, (lpMessage && lpMsgBuf ? lpMsgBuf : L"Error displaying info message."), lpTitle, uType);
  74
  75     if (lpMsgBuf) LocalFree(lpMsgBuf);
  76
  77     /* Return the MessageBoxW information */
  78     return iRet;
  79 }