OSXTimer for all variants

[wxWidgets.git] / src / msw / utils.cpp

diff --git a/src/msw/utils.cpp b/src/msw/utils.cpp
index d5a9de6069ac5d1507843ec8c9a29b2e01ccdc75..ed2e0d224d806e218be693967aba928fb8be048b 100644 (file)
--- a/src/msw/utils.cpp
+++ b/src/msw/utils.cpp
@@ -29,7 +29,6 @@
     #include "wx/app.h"
     #include "wx/intl.h"
     #include "wx/log.h"
     #include "wx/app.h"
     #include "wx/intl.h"
     #include "wx/log.h"

-    #include "wx/timer.h"

 #endif  //WX_PRECOMP
 
 #include "wx/msw/registry.h"
 #endif  //WX_PRECOMP
 
 #include "wx/msw/registry.h"


@@ -41,7 +40,7 @@
 #include "wx/confbase.h"        // for wxExpandEnvVars()
 
 #include "wx/msw/private.h"     // includes <windows.h>
 #include "wx/confbase.h"        // for wxExpandEnvVars()
 
 #include "wx/msw/private.h"     // includes <windows.h>

-#include "wx/msw/missing.h"     // CHARSET_HANGUL
+#include "wx/msw/missing.h"     // for CHARSET_HANGUL

 
 #if defined(__CYGWIN__)
     //CYGWIN gives annoying warning about runtime stuff if we don't do this
 
 #if defined(__CYGWIN__)
     //CYGWIN gives annoying warning about runtime stuff if we don't do this


@@ -56,7 +55,7 @@
     #include <winsock.h>
 #endif
 
     #include <winsock.h>
 #endif
 

-#if !defined(__GNUWIN32__) && !defined(__SALFORDC__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
+#if !defined(__GNUWIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)

     #include <direct.h>
 
     #ifndef __MWERKS__
     #include <direct.h>
 
     #ifndef __MWERKS__


@@ -159,7 +158,7 @@ bool wxGetHostName(wxChar *WXUNUSED_IN_WINCE(buf),
 // get full hostname (with domain name if possible)
 bool wxGetFullHostName(wxChar *buf, int maxSize)
 {
 // get full hostname (with domain name if possible)
 bool wxGetFullHostName(wxChar *buf, int maxSize)
 {

-#if !defined( __WXMICROWIN__) && wxUSE_DYNAMIC_LOADER && wxUSE_SOCKETS
+#if !defined( __WXMICROWIN__) && wxUSE_DYNLIB_CLASS && wxUSE_SOCKETS

     // TODO should use GetComputerNameEx() when available
 
     // we don't want to always link with Winsock DLL as we might not use it at
     // TODO should use GetComputerNameEx() when available
 
     // we don't want to always link with Winsock DLL as we might not use it at


@@ -287,7 +286,7 @@ bool wxGetUserName(wxChar *buf, int maxSize)
 {
     wxCHECK_MSG( buf && ( maxSize > 0 ), false,
                     _T("empty buffer in wxGetUserName") );
 {
     wxCHECK_MSG( buf && ( maxSize > 0 ), false,
                     _T("empty buffer in wxGetUserName") );

-#if defined(__WXWINCE__)
+#if defined(__WXWINCE__) && wxUSE_REGKEY

     wxLogNull noLog;
     wxRegKey key(wxRegKey::HKCU, wxT("ControlPanel\\Owner"));
     if(!key.Open(wxRegKey::Read))
     wxLogNull noLog;
     wxRegKey key(wxRegKey::HKCU, wxT("ControlPanel\\Owner"));
     if(!key.Open(wxRegKey::Read))


@@ -387,7 +386,7 @@ const wxChar* wxGetHomeDir(wxString *pstr)
     wxString& strDir = *pstr;
 
     // first branch is for Cygwin
     wxString& strDir = *pstr;
 
     // first branch is for Cygwin

-#if defined(__UNIX__)
+#if defined(__UNIX__) && !defined(__WINE__)

     const wxChar *szHome = wxGetenv("HOME");
     if ( szHome == NULL ) {
       // we're homeless...
     const wxChar *szHome = wxGetenv("HOME");
     if ( szHome == NULL ) {
       // we're homeless...


@@ -468,14 +467,14 @@ const wxChar* wxGetHomeDir(wxString *pstr)
     return strDir.c_str();
 }
 
     return strDir.c_str();
 }
 

-wxChar *wxGetUserHome(const wxString& WXUNUSED(user))
+wxString wxGetUserHome(const wxString& user)

 {
 {

-    // VZ: the old code here never worked for user != "" anyhow! Moreover, it
-    //     returned sometimes a malloc()'d pointer, sometimes a pointer to a
-    //     static buffer and sometimes I don't even know what.
-    static wxString s_home;
+    wxString home;
+
+    if ( user.empty() || user == wxGetUserId() )
+        wxGetHomeDir(&home);

 
 

-    return (wxChar *)wxGetHomeDir(&s_home);
+    return home;

 }
 
 bool wxGetDiskSpace(const wxString& WXUNUSED_IN_WINCE(path),
 }
 
 bool wxGetDiskSpace(const wxString& WXUNUSED_IN_WINCE(path),


@@ -515,7 +514,7 @@ bool wxGetDiskSpace(const wxString& WXUNUSED_IN_WINCE(path),
         ULARGE_INTEGER bytesFree, bytesTotal;
 
         // may pass the path as is, GetDiskFreeSpaceEx() is smart enough
         ULARGE_INTEGER bytesFree, bytesTotal;
 
         // may pass the path as is, GetDiskFreeSpaceEx() is smart enough

-        if ( !pGetDiskFreeSpaceEx(path,
+        if ( !pGetDiskFreeSpaceEx(path.fn_str(),

                                   &bytesFree,
                                   &bytesTotal,
                                   NULL) )
                                   &bytesFree,
                                   &bytesTotal,
                                   NULL) )


@@ -565,7 +564,7 @@ bool wxGetDiskSpace(const wxString& WXUNUSED_IN_WINCE(path),
 
         // FIXME: this is wrong, we should extract the root drive from path
         //        instead, but this is the job for wxFileName...
 
         // FIXME: this is wrong, we should extract the root drive from path
         //        instead, but this is the job for wxFileName...

-        if ( !::GetDiskFreeSpace(path,
+        if ( !::GetDiskFreeSpace(path.fn_str(),

                                  &lSectorsPerCluster,
                                  &lBytesPerSector,
                                  &lNumberOfFreeClusters,
                                  &lSectorsPerCluster,
                                  &lBytesPerSector,
                                  &lNumberOfFreeClusters,


@@ -609,7 +608,7 @@ bool wxGetEnv(const wxString& WXUNUSED_IN_WINCE(var),
     return false;
 #else // Win32
     // first get the size of the buffer
     return false;
 #else // Win32
     // first get the size of the buffer

-    DWORD dwRet = ::GetEnvironmentVariable(var, NULL, 0);
+    DWORD dwRet = ::GetEnvironmentVariable(var.t_str(), NULL, 0);

     if ( !dwRet )
     {
         // this means that there is no such variable
     if ( !dwRet )
     {
         // this means that there is no such variable


@@ -618,7 +617,8 @@ bool wxGetEnv(const wxString& WXUNUSED_IN_WINCE(var),
 
     if ( value )
     {
 
     if ( value )
     {

-        (void)::GetEnvironmentVariable(var, wxStringBuffer(*value, dwRet),
+        (void)::GetEnvironmentVariable(var.t_str(),
+                                       wxStringBuffer(*value, dwRet),

                                        dwRet);
     }
 
                                        dwRet);
     }
 


@@ -626,8 +626,8 @@ bool wxGetEnv(const wxString& WXUNUSED_IN_WINCE(var),
 #endif // WinCE/32
 }
 
 #endif // WinCE/32
 }
 

-bool wxSetEnv(const wxString& WXUNUSED_IN_WINCE(var),
-              const wxChar *WXUNUSED_IN_WINCE(value))
+bool wxDoSetEnv(const wxString& WXUNUSED_IN_WINCE(var),
+                const wxChar *WXUNUSED_IN_WINCE(value))

 {
     // some compilers have putenv() or _putenv() or _wputenv() but it's better
     // to always use Win32 function directly instead of dealing with them
 {
     // some compilers have putenv() or _putenv() or _wputenv() but it's better
     // to always use Win32 function directly instead of dealing with them


@@ -635,7 +635,7 @@ bool wxSetEnv(const wxString& WXUNUSED_IN_WINCE(var),
     // no environment variables under CE
     return false;
 #else
     // no environment variables under CE
     return false;
 #else

-    if ( !::SetEnvironmentVariable(var, value) )
+    if ( !::SetEnvironmentVariable(var.t_str(), value) )

     {
         wxLogLastError(_T("SetEnvironmentVariable"));
 
     {
         wxLogLastError(_T("SetEnvironmentVariable"));
 


@@ -646,6 +646,16 @@ bool wxSetEnv(const wxString& WXUNUSED_IN_WINCE(var),
 #endif
 }
 
 #endif
 }
 

+bool wxSetEnv(const wxString& variable, const wxString& value)
+{
+    return wxDoSetEnv(variable, value.t_str());
+}
+
+bool wxUnsetEnv(const wxString& variable)
+{
+    return wxDoSetEnv(variable, NULL);
+}
+

 // ----------------------------------------------------------------------------
 // process management
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // process management
 // ----------------------------------------------------------------------------


@@ -951,7 +961,7 @@ bool wxShutdown(wxShutdownFlags WXUNUSED_IN_WINCE(wFlags))
 #elif defined(__WIN32__)
     bool bOK = true;
 
 #elif defined(__WIN32__)
     bool bOK = true;
 

-    if ( wxGetOsVersion(NULL, NULL) == wxWINDOWS_NT ) // if is NT or 2K
+    if ( wxGetOsVersion(NULL, NULL) == wxOS_WINDOWS_NT ) // if is NT or 2K

     {
         // Get a token for this process.
         HANDLE hToken;
     {
         // Get a token for this process.
         HANDLE hToken;


@@ -1057,6 +1067,41 @@ bool wxIsDebuggerRunning()
 // OS version
 // ----------------------------------------------------------------------------
 
 // OS version
 // ----------------------------------------------------------------------------
 

+// check if we're running under a server or workstation Windows system: it
+// returns true or false with obvious meaning as well as -1 if the system type
+// couldn't be determined
+//
+// this function is currently private but we may want to expose it later if
+// it's really useful
+namespace
+{
+
+int wxIsWindowsServer()
+{
+#ifdef VER_NT_WORKSTATION
+    OSVERSIONINFOEX info;
+    wxZeroMemory(info);
+
+    info.dwOSVersionInfoSize = sizeof(info);
+    if ( ::GetVersionEx(wx_reinterpret_cast(OSVERSIONINFO *, &info)) )
+    {
+        switch ( info.wProductType )
+        {
+            case VER_NT_WORKSTATION:
+                return false;
+
+            case VER_NT_SERVER:
+            case VER_NT_DOMAIN_CONTROLLER:
+                return true;
+        }
+    }
+#endif // VER_NT_WORKSTATION
+
+    return -1;
+}
+
+} // anonymous namespace
+

 wxString wxGetOsDescription()
 {
     wxString str;
 wxString wxGetOsDescription()
 {
     wxString str;


@@ -1121,24 +1166,44 @@ wxString wxGetOsDescription()
                 break;
 
             case VER_PLATFORM_WIN32_NT:
                 break;
 
             case VER_PLATFORM_WIN32_NT:

-                if ( info.dwMajorVersion == 5 )
+                switch ( info.dwMajorVersion )

                 {
                 {

-                    switch ( info.dwMinorVersion )
-                    {
-                        case 0:
-                            str.Printf(_("Windows 2000 (build %lu"),
-                                       info.dwBuildNumber);
-                            break;
-                        case 1:
-                            str.Printf(_("Windows XP (build %lu"),
-                                       info.dwBuildNumber);
-                            break;
-                        case 2:
-                            str.Printf(_("Windows Server 2003 (build %lu"),
+                    case 5:
+                        switch ( info.dwMinorVersion )
+                        {
+                            case 0:
+                                str.Printf(_("Windows 2000 (build %lu"),
+                                           info.dwBuildNumber);
+                                break;
+
+                            case 2:
+                                // we can't distinguish between XP 64 and 2003
+                                // as they both are 5.2, so examine the product
+                                // type to resolve this ambiguity
+                                if ( wxIsWindowsServer() == 1 )
+                                {
+                                    str.Printf(_("Windows Server 2003 (build %lu"),
+                                               info.dwBuildNumber);
+                                    break;
+                                }
+                                //else: must be XP, fall through
+
+                            case 1:
+                                str.Printf(_("Windows XP (build %lu"),
+                                           info.dwBuildNumber);
+                                break;
+                        }
+                        break;
+
+                    case 6:
+                        if ( info.dwMinorVersion == 0 )
+                        {
+                            str.Printf(_("Windows Vista (build %lu"),

                                        info.dwBuildNumber);
                                        info.dwBuildNumber);

-                            break;
-                    }
+                        }
+                        break;

                 }
                 }

+

                 if ( str.empty() )
                 {
                     str.Printf(_("Windows NT %lu.%lu (build %lu"),
                 if ( str.empty() )
                 {
                     str.Printf(_("Windows NT %lu.%lu (build %lu"),


@@ -1146,11 +1211,15 @@ wxString wxGetOsDescription()
                            info.dwMinorVersion,
                            info.dwBuildNumber);
                 }
                            info.dwMinorVersion,
                            info.dwBuildNumber);
                 }

+

                 if ( !wxIsEmpty(info.szCSDVersion) )
                 {
                     str << _T(", ") << info.szCSDVersion;
                 }
                 str << _T(')');
                 if ( !wxIsEmpty(info.szCSDVersion) )
                 {
                     str << _T(", ") << info.szCSDVersion;
                 }
                 str << _T(')');

+
+                if ( wxIsPlatform64Bit() )
+                    str << _(", 64-bit edition");

                 break;
         }
     }
                 break;
         }
     }


@@ -1166,53 +1235,87 @@ bool wxIsPlatform64Bit()
 {
 #if defined(_WIN64)
     return true;  // 64-bit programs run only on Win64
 {
 #if defined(_WIN64)
     return true;  // 64-bit programs run only on Win64

-#else // Win32
+#elif wxUSE_DYNLIB_CLASS // Win32

     // 32-bit programs run on both 32-bit and 64-bit Windows so check
     typedef BOOL (WINAPI *IsWow64Process_t)(HANDLE, BOOL *);
 
     wxDynamicLibrary dllKernel32(_T("kernel32.dll"));
     // 32-bit programs run on both 32-bit and 64-bit Windows so check
     typedef BOOL (WINAPI *IsWow64Process_t)(HANDLE, BOOL *);
 
     wxDynamicLibrary dllKernel32(_T("kernel32.dll"));

-    IsWow64Process_t *pfnIsWow64Process =
-        (IsWow64Process_t *)dllKernel32.RawGetSymbol(_T("IsWow64Process"));
+    IsWow64Process_t pfnIsWow64Process =
+        (IsWow64Process_t)dllKernel32.RawGetSymbol(_T("IsWow64Process"));

 
     BOOL wow64 = FALSE;
     if ( pfnIsWow64Process )
     {
 
     BOOL wow64 = FALSE;
     if ( pfnIsWow64Process )
     {

-        (*pfnIsWow64Process)(::GetCurrentProcess(), &wow64);
+        pfnIsWow64Process(::GetCurrentProcess(), &wow64);

     }
     //else: running under a system without Win64 support
 
     return wow64 != FALSE;
     }
     //else: running under a system without Win64 support
 
     return wow64 != FALSE;

+#else
+    return false;

 #endif // Win64/Win32
 }
 
 wxOperatingSystemId wxGetOsVersion(int *verMaj, int *verMin)
 {
 #endif // Win64/Win32
 }
 
 wxOperatingSystemId wxGetOsVersion(int *verMaj, int *verMin)
 {

-    OSVERSIONINFO info;
-    wxZeroMemory(info);
+    static struct
+    {
+        // this may be false, true or -1 if we tried to initialize but failed
+        int initialized;

 
 

-    info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
-    if ( ::GetVersionEx(&info) )
+        wxOperatingSystemId os;
+
+        int verMaj,
+            verMin;
+    } s_version;
+
+    // query the OS info only once as it's not supposed to change
+    if ( !s_version.initialized )

     {
     {

-        if (verMaj) *verMaj = info.dwMajorVersion;
-        if (verMin) *verMin = info.dwMinorVersion;
+        OSVERSIONINFO info;
+        wxZeroMemory(info);
+        info.dwOSVersionInfoSize = sizeof(info);
+        if ( ::GetVersionEx(&info) )
+        {
+            s_version.initialized = true;
+
+#if defined(__WXWINCE__)
+            s_version.os = wxOS_WINDOWS_CE;
+#elif defined(__WXMICROWIN__)
+            s_version.os = wxOS_WINDOWS_MICRO;
+#else // "normal" desktop Windows system, use run-time detection
+            switch ( info.dwPlatformId )
+            {
+                case VER_PLATFORM_WIN32_NT:
+                    s_version.os = wxOS_WINDOWS_NT;
+                    break;
+
+                case VER_PLATFORM_WIN32_WINDOWS:
+                    s_version.os = wxOS_WINDOWS_9X;
+                    break;
+            }
+#endif // Windows versions
+
+            s_version.verMaj = info.dwMajorVersion;
+            s_version.verMin = info.dwMinorVersion;
+        }
+        else // GetVersionEx() failed
+        {
+            s_version.initialized = -1;
+        }

     }
 
     }
 

-#if defined(__WXHANDHELD__) || defined( __WXWINCE__ )
-    return wxOS_WINDOWS_WINCE;
-#elif defined( __WXMICROWIN__ )
-    return wxOS_WINDOWS_MICRO;
-#else
-    switch ( info.dwPlatformId )
+    if ( s_version.initialized == 1 )

     {
     {

-    case VER_PLATFORM_WIN32_NT:
-        return wxOS_WINDOWS_NT;
-
-    case VER_PLATFORM_WIN32_WINDOWS:
-        return wxOS_WINDOWS_9X;
+        if ( verMaj )
+            *verMaj = s_version.verMaj;
+        if ( verMin )
+            *verMin = s_version.verMin;

     }
 
     }
 

-    return wxOS_UNKNOWN;
-#endif
+    // this works even if we were not initialized successfully as the initial
+    // values of this field is 0 which is wxOS_UNKNOWN and exactly what we need
+    return s_version.os;

 }
 
 wxWinVersion wxGetWinVersion()
 }
 
 wxWinVersion wxGetWinVersion()


@@ -1221,7 +1324,7 @@ wxWinVersion wxGetWinVersion()
         verMin;
     switch ( wxGetOsVersion(&verMaj, &verMin) )
     {
         verMin;
     switch ( wxGetOsVersion(&verMaj, &verMin) )
     {

-        case wxWIN95:
+        case wxOS_WINDOWS_9X:

             if ( verMaj == 4 )
             {
                 switch ( verMin )
             if ( verMaj == 4 )
             {
                 switch ( verMin )


@@ -1238,7 +1341,7 @@ wxWinVersion wxGetWinVersion()
             }
             break;
 
             }
             break;
 

-        case wxWINDOWS_NT:
+        case wxOS_WINDOWS_NT:

             switch ( verMaj )
             {
                 case 3:
             switch ( verMaj )
             {
                 case 3:


@@ -1266,6 +1369,9 @@ wxWinVersion wxGetWinVersion()
             }
             break;
 
             }
             break;
 

+        default:
+            // Do nothing just to silence GCC warning
+            break;

     }
 
     return wxWinVersion_Unknown;
     }
 
     return wxWinVersion_Unknown;


@@ -1387,13 +1493,15 @@ extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding)
         case wxFONTENCODING_ISO8859_8:      ret = 28598; break;
         case wxFONTENCODING_ISO8859_9:      ret = 28599; break;
         case wxFONTENCODING_ISO8859_10:     ret = 28600; break;
         case wxFONTENCODING_ISO8859_8:      ret = 28598; break;
         case wxFONTENCODING_ISO8859_9:      ret = 28599; break;
         case wxFONTENCODING_ISO8859_10:     ret = 28600; break;

-        case wxFONTENCODING_ISO8859_11:     ret = 28601; break;
+        case wxFONTENCODING_ISO8859_11:     ret = 874; break;

         // case wxFONTENCODING_ISO8859_12,      // doesn't exist currently, but put it
         case wxFONTENCODING_ISO8859_13:     ret = 28603; break;
         // case wxFONTENCODING_ISO8859_12,      // doesn't exist currently, but put it
         case wxFONTENCODING_ISO8859_13:     ret = 28603; break;

-        case wxFONTENCODING_ISO8859_14:     ret = 28604; break;
+        // case wxFONTENCODING_ISO8859_14:     ret = 28604; break; // no correspondence on Windows

         case wxFONTENCODING_ISO8859_15:     ret = 28605; break;
         case wxFONTENCODING_ISO8859_15:     ret = 28605; break;

+

         case wxFONTENCODING_KOI8:           ret = 20866; break;
         case wxFONTENCODING_KOI8_U:         ret = 21866; break;
         case wxFONTENCODING_KOI8:           ret = 20866; break;
         case wxFONTENCODING_KOI8_U:         ret = 21866; break;

+

         case wxFONTENCODING_CP437:          ret = 437; break;
         case wxFONTENCODING_CP850:          ret = 850; break;
         case wxFONTENCODING_CP852:          ret = 852; break;
         case wxFONTENCODING_CP437:          ret = 437; break;
         case wxFONTENCODING_CP850:          ret = 850; break;
         case wxFONTENCODING_CP852:          ret = 852; break;


@@ -1412,7 +1520,9 @@ extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding)
         case wxFONTENCODING_CP1255:         ret = 1255; break;
         case wxFONTENCODING_CP1256:         ret = 1256; break;
         case wxFONTENCODING_CP1257:         ret = 1257; break;
         case wxFONTENCODING_CP1255:         ret = 1255; break;
         case wxFONTENCODING_CP1256:         ret = 1256; break;
         case wxFONTENCODING_CP1257:         ret = 1257; break;

+

         case wxFONTENCODING_EUC_JP:         ret = 20932; break;
         case wxFONTENCODING_EUC_JP:         ret = 20932; break;

+

         case wxFONTENCODING_MACROMAN:       ret = 10000; break;
         case wxFONTENCODING_MACJAPANESE:    ret = 10001; break;
         case wxFONTENCODING_MACCHINESETRAD: ret = 10002; break;
         case wxFONTENCODING_MACROMAN:       ret = 10000; break;
         case wxFONTENCODING_MACJAPANESE:    ret = 10001; break;
         case wxFONTENCODING_MACCHINESETRAD: ret = 10002; break;


@@ -1427,8 +1537,12 @@ extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding)
         case wxFONTENCODING_MACCROATIAN:    ret = 10082; break;
         case wxFONTENCODING_MACICELANDIC:   ret = 10079; break;
         case wxFONTENCODING_MACROMANIAN:    ret = 10009; break;
         case wxFONTENCODING_MACCROATIAN:    ret = 10082; break;
         case wxFONTENCODING_MACICELANDIC:   ret = 10079; break;
         case wxFONTENCODING_MACROMANIAN:    ret = 10009; break;

+
+        case wxFONTENCODING_ISO2022_JP:     ret = 50222; break;
+

         case wxFONTENCODING_UTF7:           ret = 65000; break;
         case wxFONTENCODING_UTF8:           ret = 65001; break;
         case wxFONTENCODING_UTF7:           ret = 65000; break;
         case wxFONTENCODING_UTF8:           ret = 65001; break;

+

         default:                            return -1;
     }
 
         default:                            return -1;
     }
 


@@ -1442,7 +1556,7 @@ extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding)
     return (long) ret;
 }
 
     return (long) ret;
 }
 

-extern long wxCharsetToCodepage(const wxChar *name)
+extern long wxCharsetToCodepage(const char *name)

 {
     // first get the font encoding for this charset
     if ( !name )
 {
     // first get the font encoding for this charset
     if ( !name )


@@ -1461,13 +1575,14 @@ extern long wxCharsetToCodepage(const wxChar *name)
 #include "wx/msw/registry.h"
 
 // this should work if Internet Exploiter is installed
 #include "wx/msw/registry.h"
 
 // this should work if Internet Exploiter is installed

-extern long wxCharsetToCodepage(const wxChar *name)
+extern long wxCharsetToCodepage(const char *name)

 {
     if (!name)
         return GetACP();
 
     long CP = -1;
 
 {
     if (!name)
         return GetACP();
 
     long CP = -1;
 

+#if wxUSE_REGKEY

     wxString path(wxT("MIME\\Database\\Charset\\"));
     wxString cn(name);
 
     wxString path(wxT("MIME\\Database\\Charset\\"));
     wxString cn(name);
 


@@ -1493,6 +1608,7 @@ extern long wxCharsetToCodepage(const wxChar *name)
             !key.QueryValue(wxT("AliasForCharset"), cn))
             break;
     }
             !key.QueryValue(wxT("AliasForCharset"), cn))
             break;
     }

+#endif // wxUSE_REGKEY

 
     return CP;
 }
 
     return CP;
 }