reactos/lib/cpl/sysdm/general.c

   1 /*
   2  *  ReactOS
   3  *  Copyright (C) 2004 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /* $Id$
  20  *
  21  * PROJECT:         ReactOS System Control Panel
  22  * FILE:            lib/cpl/system/general.c
  23  * PURPOSE:         General System Information
  24  * PROGRAMMER:      Thomas Weidenmueller (w3seek@users.sourceforge.net)
  25  * UPDATE HISTORY:
  26  *      03-04-2004  Created
  27  */
  28 #include <windows.h>
  29 #include <tchar.h>
  30 #include <stdlib.h>
  31
  32 #include "resource.h"
  33 #include "sysdm.h"
  34
  35 void
  36 ShowLastWin32Error(HWND hWndOwner)
  37 {
  38   LPTSTR lpMsg;
  39   DWORD LastError;
  40
  41   LastError = GetLastError();
  42
  43   if((LastError == 0) || !FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
  44                     FORMAT_MESSAGE_FROM_SYSTEM, NULL, LastError,
  45                     MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),(LPTSTR)&lpMsg, 0,
  46                     NULL))
  47   {
  48     return;
  49   }
  50
  51   MessageBox(hWndOwner, lpMsg, NULL, MB_OK | MB_ICONERROR);
  52
  53   LocalFree((LPVOID)lpMsg);
  54 }
  55
  56 typedef struct
  57 {
  58   HWND hDlg;
  59 } OSITINFO, *POSITINFO;
  60
  61 DWORD WINAPI
  62 ObtainSystemInformationThread(POSITINFO posit)
  63 {
  64   HRSRC hResInfo;
  65   HGLOBAL hResMem;
  66   WCHAR *LicenseText;
  67
  68   /* wait a bit */
  69   Sleep(100);
  70
  71   /* load license from resource */
  72   if(!(hResInfo = FindResource(hApplet, MAKEINTRESOURCE(RC_LICENSE),
  73                                MAKEINTRESOURCE(RTDATA))) ||
  74      !(hResMem = LoadResource(hApplet, hResInfo)) ||
  75      !(LicenseText = LockResource(hResMem)))
  76   {
  77     ShowLastWin32Error(posit->hDlg);
  78     goto LoadSystemInfo;
  79   }
  80   /* insert the license into the edit control (unicode!) */
  81   SetDlgItemText(posit->hDlg, IDC_LICENSEMEMO, LicenseText);
  82   SendDlgItemMessage(posit->hDlg, IDC_LICENSEMEMO, EM_SETSEL, 0, 0);
  83
  84   LoadSystemInfo:
  85   /* FIXME */
  86   /*free:*/
  87   HeapFree(GetProcessHeap(), 0, posit);
  88
  89   return 0;
  90 }
  91
  92 /* Property page dialog callback */
  93 INT_PTR CALLBACK
  94 GeneralPageProc(
  95   HWND hwndDlg,
  96   UINT uMsg,
  97   WPARAM wParam,
  98   LPARAM lParam
  99 )
 100 {
 101   switch(uMsg)
 102   {
 103     case WM_INITDIALOG:
 104     {
 105       HANDLE Thread;
 106       DWORD ThreadId;
 107       POSITINFO posit;
 108
 109       posit = (POSITINFO)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(OSITINFO));
 110       if(!posit)
 111       {
 112         ShowLastWin32Error(hwndDlg);
 113         return FALSE;
 114       }
 115       posit->hDlg = hwndDlg;
 116       Thread = CreateThread(NULL,
 117                             0,
 118                             (LPTHREAD_START_ROUTINE)ObtainSystemInformationThread,
 119                             (PVOID)posit,
 120                             0,
 121                             &ThreadId);
 122       if(Thread)
 123       {
 124         CloseHandle(Thread);
 125         return FALSE;
 126       }
 127
 128       break;
 129     }
 130   }
 131   return FALSE;
 132 }
 133