X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/882dfc675372ec3544e329ad6df8c4cdddbdb52d..cb73e6001f891ae46b12a1e4ca39b93649cb6099:/src/msw/utils.cpp

diff --git a/src/msw/utils.cpp b/src/msw/utils.cpp
index 2ce7da1956..fae0cb322d 100644
--- a/src/msw/utils.cpp
+++ b/src/msw/utils.cpp
@@ -32,6 +32,7 @@
 #endif  //WX_PRECOMP
 
 #include "wx/apptrait.h"
+#include "wx/dynload.h"
 
 #include "wx/msw/private.h"     // includes <windows.h>
 #include "wx/msw/missing.h"     // CHARSET_HANGUL
@@ -90,14 +91,6 @@
     #endif
 #endif
 
-// ----------------------------------------------------------------------------
-// module globals
-// ----------------------------------------------------------------------------
-
-#if wxUSE_ON_FATAL_EXCEPTION
-    static bool gs_handleExceptions = FALSE;
-#endif
-
 // ----------------------------------------------------------------------------
 // constants
 // ----------------------------------------------------------------------------
@@ -151,52 +144,80 @@ bool wxGetHostName(wxChar *buf, int maxSize)
 // get full hostname (with domain name if possible)
 bool wxGetFullHostName(wxChar *buf, int maxSize)
 {
-#if defined(__WIN32__) && !defined(__WXMICROWIN__) && ! (defined(__GNUWIN32__) && !defined(__MINGW32__))
+#ifndef __WXMICROWIN__
     // 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
+    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);
 }
@@ -416,8 +437,7 @@ const wxChar* wxGetHomeDir(wxString *pstr)
 
     wxString strPath;
     ::GetModuleFileName(::GetModuleHandle(NULL),
-                        strPath.GetWriteBuf(MAX_PATH), MAX_PATH);
-    strPath.UngetWriteBuf();
+                        wxStringBuffer(strPath, MAX_PATH), MAX_PATH);
 
     // extract the dir name
     wxSplitPath(strPath, &strDir, NULL, NULL);
@@ -601,8 +621,8 @@ bool wxGetEnv(const wxString& var, wxString *value)
 
     if ( value )
     {
-        (void)::GetEnvironmentVariable(var, value->GetWriteBuf(dwRet), dwRet);
-        value->UngetWriteBuf();
+        (void)::GetEnvironmentVariable(var, wxStringBuffer(*value, dwRet),
+                                       dwRet);
     }
 
     return TRUE;
@@ -992,7 +1012,7 @@ wxString wxGetOsDescription()
 #endif // Win32/16
 }
 
-int wxAppTraits::GetOSVersion(int *verMaj, int *verMin)
+wxToolkitInfo& wxAppTraits::GetToolkitInfo()
 {
     // cache the version info, it's not going to change
     //
@@ -1036,12 +1056,12 @@ int wxAppTraits::GetOSVersion(int *verMaj, int *verMin)
         }
     }
 
-    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;
 }
 
 // ----------------------------------------------------------------------------
@@ -1211,40 +1231,3 @@ extern long wxCharsetToCodepage(const wxChar *name)
 
 #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
 
-// ----------------------------------------------------------------------------
-// wxApp::OnFatalException() support
-// ----------------------------------------------------------------------------
-
-bool wxHandleFatalExceptions(bool doit)
-{
-#if wxUSE_ON_FATAL_EXCEPTION
-    // assume this can only be called from the main thread
-    gs_handleExceptions = doit;
-
-    return TRUE;
-#else
-    wxFAIL_MSG(_T("set wxUSE_ON_FATAL_EXCEPTION to 1 to use this function"));
-
-    (void)doit;
-    return FALSE;
-#endif
-}
-
-#if wxUSE_ON_FATAL_EXCEPTION
-
-extern unsigned long wxGlobalSEHandler()
-{
-    if ( gs_handleExceptions && wxTheApp )
-    {
-        // give the user a chance to do something special about this
-        wxTheApp->OnFatalException();
-
-        // this will execute our handler and terminate the process
-        return EXCEPTION_EXECUTE_HANDLER;
-    }
-
-    return EXCEPTION_CONTINUE_SEARCH;
-}
-
-#endif // wxUSE_ON_FATAL_EXCEPTION
-