Take src x, y into account when blitting with alpha

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

diff --git a/src/msw/utils.cpp b/src/msw/utils.cpp
index ca408de0a6bfeb2dd38bd1b2543d49b309c7ec9c..5e295b5a8e63cee6c3d6e4b6fd7ec422baf77381 100644 (file)
--- a/src/msw/utils.cpp
+++ b/src/msw/utils.cpp
@@ -32,11 +32,22 @@
 #endif  //WX_PRECOMP
 
 #include "wx/apptrait.h"
 #endif  //WX_PRECOMP
 
 #include "wx/apptrait.h"

+#include "wx/dynlib.h"
+#include "wx/dynload.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/private.h"     // includes <windows.h>
 #include "wx/msw/missing.h"     // CHARSET_HANGUL
 

-#if defined(__GNUWIN32_OLD__) || defined(__WXWINCE__)
+#if defined(__CYGWIN__)
+    //CYGWIN gives annoying warning about runtime stuff if we don't do this
+#   define USE_SYS_TYPES_FD_SET
+#   include <sys/types.h>
+#endif
+
+// Doesn't work with Cygwin at present
+#if wxUSE_SOCKETS && (defined(__GNUWIN32_OLD__) || defined(__WXWINCE__) || defined(__CYGWIN32__))

     // apparently we need to include winsock.h to get WSADATA and other stuff
     // used in wxGetFullHostName() with the old mingw32 versions
     #include <winsock.h>
     // apparently we need to include winsock.h to get WSADATA and other stuff
     // used in wxGetFullHostName() with the old mingw32 versions
     #include <winsock.h>


@@ -90,6 +101,9 @@
     #endif
 #endif
 
     #endif
 #endif
 

+// For wxKillAllChildren
+#include <tlhelp32.h>
+

 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------


@@ -98,12 +112,6 @@
 static const wxChar WX_SECTION[] = wxT("wxWindows");
 static const wxChar eUSERNAME[]  = wxT("UserName");
 
 static const wxChar WX_SECTION[] = wxT("wxWindows");
 static const wxChar eUSERNAME[]  = wxT("UserName");
 

-// these are only used under Win16
-#if !defined(__WIN32__) && !defined(__WXMICROWIN__)
-static const wxChar eHOSTNAME[]  = wxT("HostName");
-static const wxChar eUSERID[]    = wxT("UserId");
-#endif // !Win32
-

 // ============================================================================
 // implementation
 // ============================================================================
 // ============================================================================
 // implementation
 // ============================================================================


@@ -116,17 +124,20 @@ static const wxChar eUSERID[]    = wxT("UserId");
 bool wxGetHostName(wxChar *buf, int maxSize)
 {
 #if defined(__WXWINCE__)
 bool wxGetHostName(wxChar *buf, int maxSize)
 {
 #if defined(__WXWINCE__)

-    return FALSE;
+    // TODO-CE
+    wxUnusedVar(buf);
+    wxUnusedVar(maxSize);
+    return false;

 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
     DWORD nSize = maxSize;
     if ( !::GetComputerName(buf, &nSize) )
     {
         wxLogLastError(wxT("GetComputerName"));
 
 #elif defined(__WIN32__) && !defined(__WXMICROWIN__)
     DWORD nSize = maxSize;
     if ( !::GetComputerName(buf, &nSize) )
     {
         wxLogLastError(wxT("GetComputerName"));
 

-        return FALSE;
+        return false;

     }
 
     }
 

-    return TRUE;
+    return true;

 #else
     wxChar *sysname;
     const wxChar *default_host = wxT("noname");
 #else
     wxChar *sysname;
     const wxChar *default_host = wxT("noname");


@@ -136,59 +147,90 @@ bool wxGetHostName(wxChar *buf, int maxSize)
     } else
         wxStrncpy(buf, sysname, maxSize - 1);
     buf[maxSize] = wxT('\0');
     } else
         wxStrncpy(buf, sysname, maxSize - 1);
     buf[maxSize] = wxT('\0');

-    return *buf ? TRUE : FALSE;
+    return *buf ? true : false;

 #endif
 }
 
 // get full hostname (with domain name if possible)
 bool wxGetFullHostName(wxChar *buf, int maxSize)
 {
 #endif
 }
 
 // get full hostname (with domain name if possible)
 bool wxGetFullHostName(wxChar *buf, int maxSize)
 {

-#if defined(__WIN32__) && !defined(__WXMICROWIN__) && ! (defined(__GNUWIN32__) && !defined(__MINGW32__))
+#if !defined( __WXMICROWIN__) && wxUSE_DYNAMIC_LOADER && wxUSE_SOCKETS

     // TODO should use GetComputerNameEx() when available
 
     // TODO should use GetComputerNameEx() when available
 

-    // the idea is that if someone had set wxUSE_SOCKETS to 0 the code
-    // shouldn't use winsock.dll (a.k.a. ws2_32.dll) at all so only use this
-    // code if we link with it anyhow
-#if wxUSE_SOCKETS
-    WSADATA wsa;
-    if ( WSAStartup(MAKEWORD(1, 1), &wsa) == 0 )
+    // we don't want to always link with Winsock DLL as we might not use it at
+    // all, so load it dynamically here if needed (and don't complain if it is
+    // missing, we handle this)
+    wxLogNull noLog;
+
+    wxDynamicLibrary dllWinsock(_T("ws2_32.dll"), wxDL_VERBATIM);
+    if ( dllWinsock.IsLoaded() )

     {
     {

-        wxString host;
-        char bufA[256];
-        if ( gethostname(bufA, WXSIZEOF(bufA)) == 0 )
+        typedef int (PASCAL *WSAStartup_t)(WORD, WSADATA *);
+        typedef int (PASCAL *gethostname_t)(char *, int);
+        typedef hostent* (PASCAL *gethostbyname_t)(const char *);
+        typedef hostent* (PASCAL *gethostbyaddr_t)(const char *, int , int);
+        typedef int (PASCAL *WSACleanup_t)(void);
+
+        #define LOAD_WINSOCK_FUNC(func)                                       \
+            func ## _t                                                        \
+                pfn ## func = (func ## _t)dllWinsock.GetSymbol(_T(#func))
+
+        LOAD_WINSOCK_FUNC(WSAStartup);
+
+        WSADATA wsa;
+        if ( pfnWSAStartup && pfnWSAStartup(MAKEWORD(1, 1), &wsa) == 0 )

         {
         {

-            // gethostname() won't usually include the DNS domain name, for
-            // this we need to work a bit more
-            if ( !strchr(bufA, '.') )
-            {
-                struct hostent *pHostEnt =  gethostbyname(bufA);
+            LOAD_WINSOCK_FUNC(gethostname);

 
 

-                if ( pHostEnt )
+            wxString host;
+            if ( pfngethostname )
+            {
+                char bufA[256];
+                if ( pfngethostname(bufA, WXSIZEOF(bufA)) == 0 )

                 {
                 {

-                    // Windows will use DNS internally now
-                    pHostEnt = gethostbyaddr(pHostEnt->h_addr, 4, AF_INET);
-                }
+                    // gethostname() won't usually include the DNS domain name,
+                    // for this we need to work a bit more
+                    if ( !strchr(bufA, '.') )
+                    {
+                        LOAD_WINSOCK_FUNC(gethostbyname);

 
 

-                if ( pHostEnt )
-                {
-                    host = wxString::FromAscii(pHostEnt->h_name);
+                        struct hostent *pHostEnt = pfngethostbyname
+                                                    ? pfngethostbyname(bufA)
+                                                    : NULL;
+
+                        if ( pHostEnt )
+                        {
+                            // Windows will use DNS internally now
+                            LOAD_WINSOCK_FUNC(gethostbyaddr);
+
+                            pHostEnt = pfngethostbyaddr
+                                        ? pfngethostbyaddr(pHostEnt->h_addr,
+                                                           4, AF_INET)
+                                        : NULL;
+                        }
+
+                        if ( pHostEnt )
+                        {
+                            host = wxString::FromAscii(pHostEnt->h_name);
+                        }
+                    }

                 }
             }
                 }
             }

-        }

 
 

-        WSACleanup();
+            LOAD_WINSOCK_FUNC(WSACleanup);
+            if ( pfnWSACleanup )
+                pfnWSACleanup();

 
 

-        if ( !host.empty() )
-        {
-            wxStrncpy(buf, host, maxSize);

 
 

-            return TRUE;
+            if ( !host.empty() )
+            {
+                wxStrncpy(buf, host, maxSize);
+
+                return true;
+            }

         }
     }
         }
     }

-
-#endif // wxUSE_SOCKETS
-
-#endif // Win32
+#endif // !__WXMICROWIN__

 
     return wxGetHostName(buf, maxSize);
 }
 
     return wxGetHostName(buf, maxSize);
 }


@@ -197,8 +239,11 @@ bool wxGetFullHostName(wxChar *buf, int maxSize)
 bool wxGetUserId(wxChar *buf, int maxSize)
 {
 #if defined(__WXWINCE__)
 bool wxGetUserId(wxChar *buf, int maxSize)
 {
 #if defined(__WXWINCE__)

-    return FALSE;
-#elif defined(__WIN32__) && !defined(__win32s__) && !defined(__WXMICROWIN__)
+    // TODO-CE
+    wxUnusedVar(buf);
+    wxUnusedVar(maxSize);
+    return false;
+#elif defined(__WIN32__) && !defined(__WXMICROWIN__)

     DWORD nSize = maxSize;
     if ( ::GetUserName(buf, &nSize) == 0 )
     {
     DWORD nSize = maxSize;
     if ( ::GetUserName(buf, &nSize) == 0 )
     {


@@ -207,12 +252,12 @@ bool wxGetUserId(wxChar *buf, int maxSize)
         if ( res == 0 )
         {
             // not found
         if ( res == 0 )
         {
             // not found

-            return FALSE;
+            return false;

         }
     }
 
         }
     }
 

-    return TRUE;
-#else   // Win16 or Win32s
+    return true;
+#else   // __WXMICROWIN__

     wxChar *user;
     const wxChar *default_id = wxT("anonymous");
 
     wxChar *user;
     const wxChar *default_id = wxT("anonymous");
 


@@ -221,7 +266,7 @@ bool wxGetUserId(wxChar *buf, int maxSize)
     if (  (user = wxGetenv(wxT("USER"))) == NULL &&
             (user = wxGetenv(wxT("LOGNAME"))) == NULL )
     {
     if (  (user = wxGetenv(wxT("USER"))) == NULL &&
             (user = wxGetenv(wxT("LOGNAME"))) == NULL )
     {

-        // Use wxWindows configuration data (comming soon)
+        // Use wxWidgets configuration data (comming soon)

         GetProfileString(WX_SECTION, eUSERID, default_id, buf, maxSize - 1);
     }
     else
         GetProfileString(WX_SECTION, eUSERID, default_id, buf, maxSize - 1);
     }
     else


@@ -229,7 +274,7 @@ bool wxGetUserId(wxChar *buf, int maxSize)
         wxStrncpy(buf, user, maxSize - 1);
     }
 
         wxStrncpy(buf, user, maxSize - 1);
     }
 

-    return *buf ? TRUE : FALSE;
+    return *buf ? true : false;

 #endif
 }
 
 #endif
 }
 


@@ -237,11 +282,14 @@ bool wxGetUserId(wxChar *buf, int maxSize)
 bool wxGetUserName(wxChar *buf, int maxSize)
 {
 #if defined(__WXWINCE__)
 bool wxGetUserName(wxChar *buf, int maxSize)
 {
 #if defined(__WXWINCE__)

-    return FALSE;
+    // TODO-CE
+    wxUnusedVar(buf);
+    wxUnusedVar(maxSize);
+    return false;

 #elif defined(USE_NET_API)
     CHAR szUserName[256];
     if ( !wxGetUserId(szUserName, WXSIZEOF(szUserName)) )
 #elif defined(USE_NET_API)
     CHAR szUserName[256];
     if ( !wxGetUserId(szUserName, WXSIZEOF(szUserName)) )

-        return FALSE;
+        return false;

 
     // TODO how to get the domain name?
     CHAR *szDomain = "";
 
     // TODO how to get the domain name?
     CHAR *szDomain = "";


@@ -298,15 +346,15 @@ bool wxGetUserName(wxChar *buf, int maxSize)
     WideCharToMultiByte( CP_ACP, 0, ui2->usri2_full_name, -1,
             buf, maxSize, NULL, NULL );
 
     WideCharToMultiByte( CP_ACP, 0, ui2->usri2_full_name, -1,
             buf, maxSize, NULL, NULL );
 

-    return TRUE;
+    return true;

 
 error:
     wxLogError(wxT("Couldn't look up full user name."));
 
 
 error:
     wxLogError(wxT("Couldn't look up full user name."));
 

-    return FALSE;
+    return false;

 #else  // !USE_NET_API
     // Could use NIS, MS-Mail or other site specific programs
 #else  // !USE_NET_API
     // Could use NIS, MS-Mail or other site specific programs

-    // Use wxWindows configuration data
+    // Use wxWidgets configuration data

     bool ok = GetProfileString(WX_SECTION, eUSERNAME, wxEmptyString, buf, maxSize - 1) != 0;
     if ( !ok )
     {
     bool ok = GetProfileString(WX_SECTION, eUSERNAME, wxEmptyString, buf, maxSize - 1) != 0;
     if ( !ok )
     {


@@ -317,15 +365,16 @@ error:
     {
         wxStrncpy(buf, wxT("Unknown User"), maxSize);
     }
     {
         wxStrncpy(buf, wxT("Unknown User"), maxSize);
     }

-#endif // Win32/16

 
 

-    return TRUE;
+    return true;
+#endif // Win32/16

 }
 
 const wxChar* wxGetHomeDir(wxString *pstr)
 {
 }
 
 const wxChar* wxGetHomeDir(wxString *pstr)
 {

-  wxString& strDir = *pstr;
+    wxString& strDir = *pstr;

 
 

+    // first branch is for Cygwin

 #if defined(__UNIX__)
     const wxChar *szHome = wxGetenv("HOME");
     if ( szHome == NULL ) {
 #if defined(__UNIX__)
     const wxChar *szHome = wxGetenv("HOME");
     if ( szHome == NULL ) {


@@ -341,34 +390,33 @@ const wxChar* wxGetHomeDir(wxString *pstr)
       strDir << wxT('/');
 
     #ifdef __CYGWIN__
       strDir << wxT('/');
 
     #ifdef __CYGWIN__

-      // Cygwin returns unix type path but that does not work well
-      static wxChar windowsPath[MAX_PATH];
-      cygwin_conv_to_full_win32_path(strDir, windowsPath);
-      strDir = windowsPath;
+        // Cygwin returns unix type path but that does not work well
+        static wxChar windowsPath[MAX_PATH];
+        cygwin_conv_to_full_win32_path(strDir, windowsPath);
+        strDir = windowsPath;

     #endif
 #elif defined(__WXWINCE__)
     #endif
 #elif defined(__WXWINCE__)

-      // Nothing
+    strDir = wxT("\\");

 #else
 #else

-    #ifdef  __WIN32__
-      strDir.clear();
+    strDir.clear();

 
 

-      // If we have a valid HOME directory, as is used on many machines that
-      // have unix utilities on them, we should use that.
-      const wxChar *szHome = wxGetenv(wxT("HOME"));
+    // If we have a valid HOME directory, as is used on many machines that
+    // have unix utilities on them, we should use that.
+    const wxChar *szHome = wxGetenv(wxT("HOME"));

 
 

-      if ( szHome != NULL )
-      {
+    if ( szHome != NULL )
+    {

         strDir = szHome;
         strDir = szHome;

-      }
-      else // no HOME, try HOMEDRIVE/PATH
-      {
-          szHome = wxGetenv(wxT("HOMEDRIVE"));
-          if ( szHome != NULL )
+    }
+    else // no HOME, try HOMEDRIVE/PATH
+    {
+        szHome = wxGetenv(wxT("HOMEDRIVE"));
+        if ( szHome != NULL )

             strDir << szHome;
             strDir << szHome;

-          szHome = wxGetenv(wxT("HOMEPATH"));
+        szHome = wxGetenv(wxT("HOMEPATH"));

 
 

-          if ( szHome != NULL )
-          {
+        if ( szHome != NULL )
+        {

             strDir << szHome;
 
             // the idea is that under NT these variables have default values
             strDir << szHome;
 
             // the idea is that under NT these variables have default values


@@ -378,45 +426,34 @@ const wxChar* wxGetHomeDir(wxString *pstr)
             // to set HOMEPATH to something other than "\\", we suppose that he
             // knows what he is doing and use the supplied value.
             if ( wxStrcmp(szHome, wxT("\\")) == 0 )
             // to set HOMEPATH to something other than "\\", we suppose that he
             // knows what he is doing and use the supplied value.
             if ( wxStrcmp(szHome, wxT("\\")) == 0 )

-              strDir.clear();
-          }
-      }
+                strDir.clear();
+        }
+    }

 
 

-      if ( strDir.empty() )
-      {
-          // If we have a valid USERPROFILE directory, as is the case in
-          // Windows NT, 2000 and XP, we should use that as our home directory.
-          szHome = wxGetenv(wxT("USERPROFILE"));
+    if ( strDir.empty() )
+    {
+        // If we have a valid USERPROFILE directory, as is the case in
+        // Windows NT, 2000 and XP, we should use that as our home directory.
+        szHome = wxGetenv(wxT("USERPROFILE"));

 
 

-          if ( szHome != NULL )
+        if ( szHome != NULL )

             strDir = szHome;
             strDir = szHome;

-      }
-
-      if ( !strDir.empty() )
-      {
-          return strDir.c_str();
-      }
-      //else: fall back to the prograrm directory
-    #else   // Win16
-      // Win16 has no idea about home, so use the executable directory instead
-    #endif  // WIN16/32
-
-    // 260 was taken from windef.h
-    #ifndef MAX_PATH
-      #define MAX_PATH  260
-    #endif
-
-    wxString strPath;
-    ::GetModuleFileName(::GetModuleHandle(NULL),
-                        strPath.GetWriteBuf(MAX_PATH), MAX_PATH);
-    strPath.UngetWriteBuf();
-
-    // extract the dir name
-    wxSplitPath(strPath, &strDir, NULL, NULL);
+    }

 
 

+    if ( !strDir.empty() )
+    {
+        // sometimes the value of HOME may be "%USERPROFILE%", so reexpand the
+        // value once again, it shouldn't hurt anyhow
+        strDir = wxExpandEnvVars(strDir);
+    }
+    else // fall back to the program directory
+    {
+        // extract the directory component of the program file name
+        wxSplitPath(wxGetFullModuleName(), &strDir, NULL, NULL);
+    }

 #endif  // UNIX/Win
 
 #endif  // UNIX/Win
 

-  return strDir.c_str();
+    return strDir.c_str();

 }
 
 wxChar *wxGetUserHome(const wxString& WXUNUSED(user))
 }
 
 wxChar *wxGetUserHome(const wxString& WXUNUSED(user))


@@ -429,39 +466,17 @@ wxChar *wxGetUserHome(const wxString& WXUNUSED(user))
     return (wxChar *)wxGetHomeDir(&s_home);
 }
 
     return (wxChar *)wxGetHomeDir(&s_home);
 }
 

-bool wxDirExists(const wxString& dir)
-{
-#ifdef __WXMICROWIN__
-    return wxPathExist(dir);
-#elif defined(__WIN32__)
-    DWORD attribs = GetFileAttributes(dir);
-    return ((attribs != (DWORD)-1) && (attribs & FILE_ATTRIBUTE_DIRECTORY));
-#else // Win16
-    #ifdef __BORLANDC__
-        struct ffblk fileInfo;
-    #else
-        struct find_t fileInfo;
-    #endif
-    // In Borland findfirst has a different argument
-    // ordering from _dos_findfirst. But _dos_findfirst
-    // _should_ be ok in both MS and Borland... why not?
-    #ifdef __BORLANDC__
-        return (findfirst(dir, &fileInfo, _A_SUBDIR) == 0 &&
-               (fileInfo.ff_attrib & _A_SUBDIR) != 0);
-    #else
-        return (_dos_findfirst(dir, _A_SUBDIR, &fileInfo) == 0) &&
-               ((fileInfo.attrib & _A_SUBDIR) != 0);
-    #endif
-#endif // Win32/16
-}
-

 bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
 {
 #ifdef __WXWINCE__
 bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
 {
 #ifdef __WXWINCE__

-    return FALSE;
+    // TODO-CE
+    wxUnusedVar(path);
+    wxUnusedVar(pTotal);
+    wxUnusedVar(pFree);
+    return false;

 #else
     if ( path.empty() )
 #else
     if ( path.empty() )

-        return FALSE;
+        return false;

 
 // old w32api don't have ULARGE_INTEGER
 #if defined(__WIN32__) && \
 
 // old w32api don't have ULARGE_INTEGER
 #if defined(__WIN32__) && \


@@ -496,7 +511,7 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
         {
             wxLogLastError(_T("GetDiskFreeSpaceEx"));
 
         {
             wxLogLastError(_T("GetDiskFreeSpaceEx"));
 

-            return FALSE;
+            return false;

         }
 
         // ULARGE_INTEGER is a union of a 64 bit value and a struct containing
         }
 
         // ULARGE_INTEGER is a union of a 64 bit value and a struct containing


@@ -539,7 +554,7 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
         {
             wxLogLastError(_T("GetDiskFreeSpace"));
 
         {
             wxLogLastError(_T("GetDiskFreeSpace"));
 

-            return FALSE;
+            return false;

         }
 
         wxLongLong lBytesPerCluster = lSectorsPerCluster;
         }
 
         wxLongLong lBytesPerCluster = lSectorsPerCluster;


@@ -558,7 +573,7 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
         }
     }
 
         }
     }
 

-    return TRUE;
+    return true;

 #endif
     // __WXWINCE__
 }
 #endif
     // __WXWINCE__
 }


@@ -570,35 +585,27 @@ bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
 bool wxGetEnv(const wxString& var, wxString *value)
 {
 #ifdef __WXWINCE__
 bool wxGetEnv(const wxString& var, wxString *value)
 {
 #ifdef __WXWINCE__

-    return FALSE;
-#elif defined(__WIN16__)
-    const wxChar* ret = wxGetenv(var);
-    if ( !ret )
-        return FALSE;
-
-    if ( value )
-    {
-        *value = ret;
-    }
-
-    return TRUE;
+    // no environment variables under CE
+    wxUnusedVar(var);
+    wxUnusedVar(value);
+    return false;

 #else // Win32
     // first get the size of the buffer
     DWORD dwRet = ::GetEnvironmentVariable(var, NULL, 0);
     if ( !dwRet )
     {
         // this means that there is no such variable
 #else // Win32
     // first get the size of the buffer
     DWORD dwRet = ::GetEnvironmentVariable(var, NULL, 0);
     if ( !dwRet )
     {
         // this means that there is no such variable

-        return FALSE;
+        return false;

     }
 
     if ( value )
     {
     }
 
     if ( value )
     {

-        (void)::GetEnvironmentVariable(var, value->GetWriteBuf(dwRet), dwRet);
-        value->UngetWriteBuf();
+        (void)::GetEnvironmentVariable(var, wxStringBuffer(*value, dwRet),
+                                       dwRet);

     }
 
     }
 

-    return TRUE;
-#endif // Win16/32
+    return true;
+#endif // WinCE/32

 }
 
 bool wxSetEnv(const wxString& var, const wxChar *value)
 }
 
 bool wxSetEnv(const wxString& var, const wxChar *value)


@@ -610,12 +617,15 @@ bool wxSetEnv(const wxString& var, const wxChar *value)
     {
         wxLogLastError(_T("SetEnvironmentVariable"));
 
     {
         wxLogLastError(_T("SetEnvironmentVariable"));
 

-        return FALSE;
+        return false;

     }
 
     }
 

-    return TRUE;
+    return true;

 #else // no way to set env vars
 #else // no way to set env vars

-    return FALSE;
+    // no environment variables under CE
+    wxUnusedVar(var);
+    wxUnusedVar(value);
+    return false;

 #endif
 }
 
 #endif
 }
 


@@ -658,8 +668,13 @@ BOOL CALLBACK wxEnumFindByPidProc(HWND hwnd, LPARAM lParam)
     return TRUE;
 }
 
     return TRUE;
 }
 

-int wxKill(long pid, wxSignal sig, wxKillError *krc)
+int wxKillAllChildren(long pid, wxSignal sig, wxKillError *krc);
+
+int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)

 {
 {

+    if (flags & wxKILL_CHILDREN)
+        wxKillAllChildren(pid, sig, krc);
+

     // get the process handle to operate on
     HANDLE hProcess = ::OpenProcess(SYNCHRONIZE |
                                     PROCESS_TERMINATE |
     // get the process handle to operate on
     HANDLE hProcess = ::OpenProcess(SYNCHRONIZE |
                                     PROCESS_TERMINATE |


@@ -683,7 +698,7 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc)
         return -1;
     }
 
         return -1;
     }
 

-    bool ok = TRUE;
+    bool ok = true;

     switch ( sig )
     {
         case wxSIGKILL:
     switch ( sig )
     {
         case wxSIGKILL:


@@ -699,7 +714,7 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc)
                     *krc = wxKILL_ERROR;
                 }
 
                     *krc = wxKILL_ERROR;
                 }
 

-                ok = FALSE;
+                ok = false;

             }
             break;
 
             }
             break;
 


@@ -736,7 +751,7 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc)
                     {
                         wxLogLastError(_T("EnumWindows"));
 
                     {
                         wxLogLastError(_T("EnumWindows"));
 

-                        ok = FALSE;
+                        ok = false;

                     }
                 }
                 else // no windows for this PID
                     }
                 }
                 else // no windows for this PID


@@ -746,7 +761,7 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc)
                         *krc = wxKILL_ERROR;
                     }
 
                         *krc = wxKILL_ERROR;
                     }
 

-                    ok = FALSE;
+                    ok = false;

                 }
             }
     }
                 }
             }
     }


@@ -814,17 +829,124 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc)
     return -1;
 }
 
     return -1;
 }
 

+HANDLE (WINAPI *lpfCreateToolhelp32Snapshot)(DWORD,DWORD) ;
+BOOL (WINAPI *lpfProcess32First)(HANDLE,LPPROCESSENTRY32) ;
+BOOL (WINAPI *lpfProcess32Next)(HANDLE,LPPROCESSENTRY32) ;
+
+static void InitToolHelp32()
+{
+    static bool s_initToolHelpDone = false;
+
+    if (s_initToolHelpDone)
+        return;
+
+    s_initToolHelpDone = true;
+
+    lpfCreateToolhelp32Snapshot = NULL;
+    lpfProcess32First = NULL;
+    lpfProcess32Next = NULL;
+
+    HINSTANCE hInstLib = LoadLibrary( wxT("Kernel32.DLL") ) ;
+    if( hInstLib == NULL )
+        return ;
+
+    // Get procedure addresses.
+    // We are linking to these functions of Kernel32
+    // explicitly, because otherwise a module using
+    // this code would fail to load under Windows NT,
+    // which does not have the Toolhelp32
+    // functions in the Kernel 32.
+    lpfCreateToolhelp32Snapshot=
+        (HANDLE(WINAPI *)(DWORD,DWORD))
+        GetProcAddress( hInstLib,
+#ifdef __WXWINCE__
+        wxT("CreateToolhelp32Snapshot")
+#else
+        "CreateToolhelp32Snapshot"
+#endif
+        ) ;
+
+    lpfProcess32First=
+        (BOOL(WINAPI *)(HANDLE,LPPROCESSENTRY32))
+        GetProcAddress( hInstLib,
+#ifdef __WXWINCE__
+        wxT("Process32First")
+#else
+        "Process32First"
+#endif
+        ) ;
+
+    lpfProcess32Next=
+        (BOOL(WINAPI *)(HANDLE,LPPROCESSENTRY32))
+        GetProcAddress( hInstLib,
+#ifdef __WXWINCE__
+        wxT("Process32Next")
+#else
+        "Process32Next"
+#endif
+        ) ;
+
+    FreeLibrary( hInstLib ) ;
+}
+
+// By John Skiff
+int wxKillAllChildren(long pid, wxSignal sig, wxKillError *krc)
+{
+    InitToolHelp32();
+
+    if (krc)
+        *krc = wxKILL_OK;
+
+    // If not implemented for this platform (e.g. NT 4.0), silently ignore
+    if (!lpfCreateToolhelp32Snapshot || !lpfProcess32First || !lpfProcess32Next)
+        return 0;
+
+    // Take a snapshot of all processes in the system.
+    HANDLE hProcessSnap = lpfCreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
+    if (hProcessSnap == INVALID_HANDLE_VALUE) {
+        if (krc)
+            *krc = wxKILL_ERROR;
+        return -1;
+    }
+
+    //Fill in the size of the structure before using it.
+    PROCESSENTRY32 pe;
+    wxZeroMemory(pe);
+    pe.dwSize = sizeof(PROCESSENTRY32);
+
+    // Walk the snapshot of the processes, and for each process,
+    // kill it if its parent is pid.
+    if (!lpfProcess32First(hProcessSnap, &pe)) {
+        // Can't get first process.
+        if (krc)
+            *krc = wxKILL_ERROR;
+        CloseHandle (hProcessSnap);
+        return -1;
+    }
+
+    do {
+        if (pe.th32ParentProcessID == (DWORD) pid) {
+            if (wxKill(pe.th32ProcessID, sig, krc))
+                return -1;
+        }
+    } while (lpfProcess32Next (hProcessSnap, &pe));
+
+
+    return 0;
+}
+

 // Execute a program in an Interactive Shell
 bool wxShell(const wxString& command)
 {
 // Execute a program in an Interactive Shell
 bool wxShell(const wxString& command)
 {

+    wxString cmd;
+

 #ifdef __WXWINCE__
 #ifdef __WXWINCE__

-    return FALSE;
+    cmd = command;

 #else
     wxChar *shell = wxGetenv(wxT("COMSPEC"));
     if ( !shell )
         shell = (wxChar*) wxT("\\COMMAND.COM");
 
 #else
     wxChar *shell = wxGetenv(wxT("COMSPEC"));
     if ( !shell )
         shell = (wxChar*) wxT("\\COMMAND.COM");
 

-    wxString cmd;

     if ( !command )
     {
         // just the shell
     if ( !command )
     {
         // just the shell


@@ -835,18 +957,20 @@ bool wxShell(const wxString& command)
         // pass the command to execute to the command processor
         cmd.Printf(wxT("%s /c %s"), shell, command.c_str());
     }
         // pass the command to execute to the command processor
         cmd.Printf(wxT("%s /c %s"), shell, command.c_str());
     }

+#endif

 
     return wxExecute(cmd, wxEXEC_SYNC) == 0;
 
     return wxExecute(cmd, wxEXEC_SYNC) == 0;

-#endif

 }
 
 // Shutdown or reboot the PC
 bool wxShutdown(wxShutdownFlags wFlags)
 {
 #ifdef __WXWINCE__
 }
 
 // Shutdown or reboot the PC
 bool wxShutdown(wxShutdownFlags wFlags)
 {
 #ifdef __WXWINCE__

-    return FALSE;
+    // TODO-CE
+    wxUnusedVar(wFlags);
+    return false;

 #elif defined(__WIN32__)
 #elif defined(__WIN32__)

-    bool bOK = TRUE;
+    bool bOK = true;

 
     if ( wxGetOsVersion(NULL, NULL) == wxWINDOWS_NT ) // if is NT or 2K
     {
 
     if ( wxGetOsVersion(NULL, NULL) == wxWINDOWS_NT ) // if is NT or 2K
     {


@@ -890,42 +1014,51 @@ bool wxShutdown(wxShutdownFlags wFlags)
 
             default:
                 wxFAIL_MSG( _T("unknown wxShutdown() flag") );
 
             default:
                 wxFAIL_MSG( _T("unknown wxShutdown() flag") );

-                return FALSE;
+                return false;

         }
 
         }
 

-        bOK = ::ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE | EWX_REBOOT, 0) != 0;
+        bOK = ::ExitWindowsEx(flags, 0) != 0;

     }
 
     return bOK;
     }
 
     return bOK;

-#else // Win16
-    return FALSE;

 #endif // Win32/16
 }
 
 #endif // Win32/16
 }
 

+wxPowerType wxGetPowerType()
+{
+    // TODO
+    return wxPOWER_UNKNOWN;
+}
+
+wxBatteryState wxGetBatteryState()
+{
+    // TODO
+    return wxBATTERY_UNKNOWN_STATE;
+}
+

 // ----------------------------------------------------------------------------
 // misc
 // ----------------------------------------------------------------------------
 
 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 // ----------------------------------------------------------------------------
 // misc
 // ----------------------------------------------------------------------------
 
 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)

-long wxGetFreeMemory()
+wxMemorySize wxGetFreeMemory()

 {
 {

-#if defined(__WIN32__) && !defined(__BORLANDC__)
+#if defined(__WIN64__)
+    MEMORYSTATUSEX memStatex;
+    statex.dwLength = sizeof (statex);
+    ::GlobalMemoryStatusEx (&statex);
+    return (wxMemorySize)memStatus.ullAvailPhys;
+#else /* if defined(__WIN32__) */

     MEMORYSTATUS memStatus;
     memStatus.dwLength = sizeof(MEMORYSTATUS);
     MEMORYSTATUS memStatus;
     memStatus.dwLength = sizeof(MEMORYSTATUS);

-    GlobalMemoryStatus(&memStatus);
-    return memStatus.dwAvailPhys;
-#else
-    return (long)GetFreeSpace(0);
+    ::GlobalMemoryStatus(&memStatus);
+    return (wxMemorySize)memStatus.dwAvailPhys;

 #endif
 }
 
 unsigned long wxGetProcessId()
 {
 #endif
 }
 
 unsigned long wxGetProcessId()
 {

-#ifdef __WIN32__

     return ::GetCurrentProcessId();
     return ::GetCurrentProcessId();

-#else
-    return 0;
-#endif

 }
 
 // Emit a beeeeeep
 }
 
 // Emit a beeeeeep


@@ -934,9 +1067,27 @@ void wxBell()
     ::MessageBeep((UINT)-1);        // default sound
 }
 
     ::MessageBeep((UINT)-1);        // default sound
 }
 

+bool wxIsDebuggerRunning()
+{
+    // IsDebuggerPresent() is not available under Win95, so load it dynamically
+    wxDynamicLibrary dll(_T("kernel32.dll"), wxDL_VERBATIM);
+
+    typedef BOOL (WINAPI *IsDebuggerPresent_t)();
+    if ( !dll.HasSymbol(_T("IsDebuggerPresent")) )
+    {
+        // no way to know, assume no
+        return false;
+    }
+
+    return (*(IsDebuggerPresent_t)dll.GetSymbol(_T("IsDebuggerPresent")))() != 0;
+}
+
+// ----------------------------------------------------------------------------
+// OS version
+// ----------------------------------------------------------------------------
+

 wxString wxGetOsDescription()
 {
 wxString wxGetOsDescription()
 {

-#ifdef __WIN32__

     wxString str;
 
     OSVERSIONINFO info;
     wxString str;
 
     OSVERSIONINFO info;


@@ -952,8 +1103,39 @@ wxString wxGetOsDescription()
                 break;
 
             case VER_PLATFORM_WIN32_WINDOWS:
                 break;
 
             case VER_PLATFORM_WIN32_WINDOWS:

-                str.Printf(_("Windows 9%c"),
-                           info.dwMinorVersion == 0 ? _T('5') : _T('8'));
+                switch (info.dwMinorVersion)
+                {
+                    case 0:
+                        if ( info.szCSDVersion[1] == 'B' ||
+                             info.szCSDVersion[1] == 'C' )
+                        {
+                            str = _("Windows 95 OSR2");
+                        }
+                        else
+                        {
+                            str = _("Windows 95");
+                        }
+                        break;
+                    case 10:
+                        if ( info.szCSDVersion[1] == 'B' ||
+                             info.szCSDVersion[1] == 'C' )
+                        {
+                            str = _("Windows 98 SE");
+                        }
+                        else
+                        {
+                            str = _("Windows 98");
+                        }
+                        break;
+                    case 90:
+                        str = _("Windows ME");
+                        break;
+                    default:
+                        str.Printf(_("Windows 9x (%d.%d)"),
+                                   info.dwMajorVersion,
+                                   info.dwMinorVersion);
+                        break;
+                }

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


@@ -961,10 +1143,31 @@ wxString wxGetOsDescription()
                 break;
 
             case VER_PLATFORM_WIN32_NT:
                 break;
 
             case VER_PLATFORM_WIN32_NT:

-                str.Printf(_T("Windows NT %lu.%lu (build %lu"),
+                if ( info.dwMajorVersion == 5 )
+                {
+                    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"),
+                                       info.dwBuildNumber);
+                            break;
+                    }
+                }
+                if ( wxIsEmpty(str) )
+                {
+                    str.Printf(_("Windows NT %lu.%lu (build %lu"),

                            info.dwMajorVersion,
                            info.dwMinorVersion,
                            info.dwBuildNumber);
                            info.dwMajorVersion,
                            info.dwMinorVersion,
                            info.dwBuildNumber);

+                }

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


@@ -979,12 +1182,9 @@ wxString wxGetOsDescription()
     }
 
     return str;
     }
 
     return str;

-#else // Win16
-    return _("Windows 3.1");
-#endif // Win32/16

 }
 
 }
 

-int wxAppTraits::GetOSVersion(int *verMaj, int *verMin)
+wxToolkitInfo& wxAppTraits::GetToolkitInfo()

 {
     // cache the version info, it's not going to change
     //
 {
     // cache the version info, it's not going to change
     //


@@ -1006,6 +1206,11 @@ int wxAppTraits::GetOSVersion(int *verMaj, int *verMin)
             s_major = info.dwMajorVersion;
             s_minor = info.dwMinorVersion;
 
             s_major = info.dwMajorVersion;
             s_minor = info.dwMinorVersion;
 

+#ifdef __SMARTPHONE__
+            s_ver = wxWINDOWS_SMARTPHONE;
+#elif defined(__POCKETPC__)
+            s_ver = wxWINDOWS_POCKETPC;
+#else

             switch ( info.dwPlatformId )
             {
                 case VER_PLATFORM_WIN32s:
             switch ( info.dwPlatformId )
             {
                 case VER_PLATFORM_WIN32s:


@@ -1022,32 +1227,37 @@ int wxAppTraits::GetOSVersion(int *verMaj, int *verMin)
 #ifdef __WXWINCE__
                 case VER_PLATFORM_WIN32_CE:
                     s_ver = wxWINDOWS_CE;
 #ifdef __WXWINCE__
                 case VER_PLATFORM_WIN32_CE:
                     s_ver = wxWINDOWS_CE;

-                    break;
-#endif                    
+#endif

             }
             }

+#endif

         }
     }
 
         }
     }
 

-    if ( verMaj )
-        *verMaj = s_major;
-    if ( verMin )
-        *verMin = s_minor;
-
-    return s_ver;
+    static wxToolkitInfo info;
+    info.versionMajor = s_major;
+    info.versionMinor = s_minor;
+    info.os = s_ver;
+    info.name = _T("wxBase");
+    return info;

 }
 
 // ----------------------------------------------------------------------------
 // sleep functions
 // ----------------------------------------------------------------------------
 
 }
 
 // ----------------------------------------------------------------------------
 // sleep functions
 // ----------------------------------------------------------------------------
 

-void wxUsleep(unsigned long milliseconds)
+void wxMilliSleep(unsigned long milliseconds)

 {
     ::Sleep(milliseconds);
 }
 
 {
     ::Sleep(milliseconds);
 }
 

+void wxMicroSleep(unsigned long microseconds)
+{
+    wxMilliSleep(microseconds/1000);
+}
+

 void wxSleep(int nSecs)
 {
 void wxSleep(int nSecs)
 {

-    wxUsleep(1000*nSecs);
+    wxMilliSleep(1000*nSecs);

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -1127,23 +1337,77 @@ extern WXDLLIMPEXP_BASE long wxEncodingToCharset(wxFontEncoding encoding)
 
 extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding)
 {
 
 extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding)
 {

-    // translate encoding into the Windows CHARSET
-    long charset = wxEncodingToCharset(encoding);
-    if ( charset == -1 )
-        return -1;
+    // There don't seem to be symbolic names for
+    // these under Windows so I just copied the
+    // values from MSDN.
+
+    unsigned int ret;

 
 

-    // translate CHARSET to code page
-    CHARSETINFO csetInfo;
-    if ( !::TranslateCharsetInfo((DWORD *)(DWORD)charset,
-                                 &csetInfo,
-                                 TCI_SRCCHARSET) )
+    switch (encoding)

     {
     {

-        wxLogLastError(_T("TranslateCharsetInfo(TCI_SRCCHARSET)"));
+        case wxFONTENCODING_ISO8859_1:      ret = 28591; break;
+        case wxFONTENCODING_ISO8859_2:      ret = 28592; break;
+        case wxFONTENCODING_ISO8859_3:      ret = 28593; break;
+        case wxFONTENCODING_ISO8859_4:      ret = 28594; break;
+        case wxFONTENCODING_ISO8859_5:      ret = 28595; break;
+        case wxFONTENCODING_ISO8859_6:      ret = 28596; break;
+        case wxFONTENCODING_ISO8859_7:      ret = 28597; 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_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_15:     ret = 28605; 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_CP855:          ret = 855; break;
+        case wxFONTENCODING_CP866:          ret = 866; break;
+        case wxFONTENCODING_CP874:          ret = 874; break;
+        case wxFONTENCODING_CP932:          ret = 932; break;
+        case wxFONTENCODING_CP936:          ret = 936; break;
+        case wxFONTENCODING_CP949:          ret = 949; break;
+        case wxFONTENCODING_CP950:          ret = 950; break;
+        case wxFONTENCODING_CP1250:         ret = 1250; break;
+        case wxFONTENCODING_CP1251:         ret = 1251; break;
+        case wxFONTENCODING_CP1252:         ret = 1252; break;
+        case wxFONTENCODING_CP1253:         ret = 1253; break;
+        case wxFONTENCODING_CP1254:         ret = 1254; break;
+        case wxFONTENCODING_CP1255:         ret = 1255; break;
+        case wxFONTENCODING_CP1256:         ret = 1256; break;
+        case wxFONTENCODING_CP1257:         ret = 1257; break;
+        case wxFONTENCODING_EUC_JP:         ret = 51932; break;
+        case wxFONTENCODING_MACROMAN:       ret = 10000; break;
+        case wxFONTENCODING_MACJAPANESE:    ret = 10001; break;
+        case wxFONTENCODING_MACCHINESETRAD: ret = 10002; break;
+        case wxFONTENCODING_MACKOREAN:      ret = 10003; break;
+        case wxFONTENCODING_MACARABIC:      ret = 10004; break;
+        case wxFONTENCODING_MACHEBREW:      ret = 10005; break;
+        case wxFONTENCODING_MACGREEK:       ret = 10006; break;
+        case wxFONTENCODING_MACCYRILLIC:    ret = 10007; break;
+        case wxFONTENCODING_MACTHAI:        ret = 10021; break;
+        case wxFONTENCODING_MACCHINESESIMP: ret = 10008; break;
+        case wxFONTENCODING_MACCENTRALEUR:  ret = 10029; break;
+        case wxFONTENCODING_MACCROATIAN:    ret = 10082; break;
+        case wxFONTENCODING_MACICELANDIC:   ret = 10079; break;
+        case wxFONTENCODING_MACROMANIAN:    ret = 10009; break;
+        case wxFONTENCODING_UTF7:           ret = 65000; break;
+        case wxFONTENCODING_UTF8:           ret = 65001; break;
+        default:                            return -1;
+    }

 
 

+    if (::IsValidCodePage(ret) == 0)
+        return -1;
+
+    CPINFO info;
+    if (::GetCPInfo(ret, &info) == 0)

         return -1;
         return -1;

-    }

 
 

-    return csetInfo.ciACP;
+    return (long) ret;

 }
 
 extern long wxCharsetToCodepage(const wxChar *name)
 }
 
 extern long wxCharsetToCodepage(const wxChar *name)


@@ -1152,7 +1416,7 @@ extern long wxCharsetToCodepage(const wxChar *name)
     if ( !name )
         return -1;
 
     if ( !name )
         return -1;
 

-    wxFontEncoding enc = wxFontMapper::Get()->CharsetToEncoding(name, FALSE);
+    wxFontEncoding enc = wxFontMapperBase::Get()->CharsetToEncoding(name, false);

     if ( enc == wxFONTENCODING_SYSTEM )
         return -1;
 
     if ( enc == wxFONTENCODING_SYSTEM )
         return -1;
 


@@ -1203,3 +1467,62 @@ extern long wxCharsetToCodepage(const wxChar *name)
 
 #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
 
 
 #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
 

+/*
+  Creates a hidden window with supplied window proc registering the class for
+  it if necesssary (i.e. the first time only). Caller is responsible for
+  destroying the window and unregistering the class (note that this must be
+  done because wxWidgets may be used as a DLL and so may be loaded/unloaded
+  multiple times into/from the same process so we cna't rely on automatic
+  Windows class unregistration).
+
+  pclassname is a pointer to a caller stored classname, which must initially be
+  NULL. classname is the desired wndclass classname. If function succesfully
+  registers the class, pclassname will be set to classname.
+ */
+extern "C" WXDLLIMPEXP_BASE HWND
+wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc)
+{
+    wxCHECK_MSG( classname && pclassname && wndproc, NULL,
+                    _T("NULL parameter in wxCreateHiddenWindow") );
+
+    // register the class fi we need to first
+    if ( *pclassname == NULL )
+    {
+        WNDCLASS wndclass;
+        wxZeroMemory(wndclass);
+
+        wndclass.lpfnWndProc   = wndproc;
+        wndclass.hInstance     = wxGetInstance();
+        wndclass.lpszClassName = classname;
+
+        if ( !::RegisterClass(&wndclass) )
+        {
+            wxLogLastError(wxT("RegisterClass() in wxCreateHiddenWindow"));
+
+            return NULL;
+        }
+
+        *pclassname = classname;
+    }
+
+    // next create the window
+    HWND hwnd = ::CreateWindow
+                  (
+                    *pclassname,
+                    NULL,
+                    0, 0, 0, 0,
+                    0,
+                    (HWND) NULL,
+                    (HMENU)NULL,
+                    wxGetInstance(),
+                    (LPVOID) NULL
+                  );
+
+    if ( !hwnd )
+    {
+        wxLogLastError(wxT("CreateWindow() in wxCreateHiddenWindow"));
+    }
+
+    return hwnd;
+}
+