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csutil/win32/wintools.h

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00001 /*
00002     Copyright (C) 2003 by Frank Richter
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __CS_CSSYS_WIN32_WINTOOLS_H__
00020 #define __CS_CSSYS_WIN32_WINTOOLS_H__
00021 
00026 #include "csextern.h"
00027 #include "csutil/csunicode.h"
00028 #include "csutil/util.h"
00029 #include <winnls.h> // contains MultiByteToWideChar()/WideCharToMultiByte()
00030 #include "sanity.inc"
00031 
00041 static inline wchar_t* cswinAnsiToWide (const char* ansi, 
00042                                          UINT codePage = CP_ACP)
00043 {
00044   int bufsize;
00045   WCHAR* buf;
00046 
00047   bufsize = MultiByteToWideChar (codePage,
00048     MB_PRECOMPOSED, ansi, -1, 0, 0);
00049   buf = new WCHAR[bufsize];
00050   MultiByteToWideChar (codePage,
00051     MB_PRECOMPOSED, ansi, -1, buf, bufsize);
00052   
00053   return buf;
00054 }
00055 
00065 static inline char* cswinWideToAnsi (const wchar_t* wide, 
00066                                      UINT codePage = CP_ACP)
00067 {
00068   int bufsize;
00069   char* buf;
00070 
00071   bufsize = WideCharToMultiByte (codePage,
00072     WC_COMPOSITECHECK, wide, -1, 0, 0, 0, 0);
00073   buf = new char[bufsize];
00074   WideCharToMultiByte (codePage,
00075     WC_COMPOSITECHECK, wide, -1, buf, bufsize, 0, 0);
00076   
00077   return buf;
00078 }
00079 
00093 struct CS_CRYSTALSPACE_EXPORT cswinWtoA
00094 {
00095 private:
00096   char* s;
00097 public:
00099   cswinWtoA (const wchar_t* ws)
00100   { s = cswinWideToAnsi (ws); }
00102   ~cswinWtoA ()
00103   { delete[] s; }
00105   operator const char* () const
00106   { return s; }
00107 };
00108 
00118 struct CS_CRYSTALSPACE_EXPORT cswinCtoA
00119 {
00120 private:
00121   char* s;
00122 public:
00124   cswinCtoA (const char* ws, UINT codePage = CP_ACP)
00125   { 
00126     s = cswinWideToAnsi (csCtoW (ws), codePage); 
00127   }
00129   ~cswinCtoA ()
00130   { delete[] s; }
00132   operator const char* () const
00133   { return s; }
00134 };
00135 
00147 extern CS_CRYSTALSPACE_EXPORT char* cswinGetErrorMessage (HRESULT code);
00158 extern CS_CRYSTALSPACE_EXPORT wchar_t* cswinGetErrorMessageW (HRESULT code);
00159 
00161 enum cswinWindowsVersion
00162 {
00164   cswinWin9x = 30,
00166   cswinWinNT = 40,
00168   cswinWin2K = 50,
00170   cswinWinXP = 51
00171 };
00172 
00184 extern CS_CRYSTALSPACE_EXPORT bool cswinIsWinNT (cswinWindowsVersion* version = 0);
00185 
00186 #endif // __CS_CSSYS_WIN32_WINTOOLS_H__

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