removing unreached code (overriden)

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

diff --git a/src/msw/utils.cpp b/src/msw/utils.cpp
index 97f1369e3c026afef954567ce680cb7866748bb9..3e3721f596195e36af07645a8e0b06833372593a 100644 (file)
--- a/src/msw/utils.cpp
+++ b/src/msw/utils.cpp
@@ -34,6 +34,8 @@
 #include "wx/apptrait.h"
 #include "wx/dynload.h"
 
 #include "wx/apptrait.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
 


@@ -92,6 +94,11 @@
     #endif
 #endif
 
     #endif
 #endif
 

+// 260 was taken from windef.h
+#ifndef MAX_PATH
+    #define MAX_PATH  260
+#endif
+

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


@@ -149,7 +156,10 @@ bool wxGetFullHostName(wxChar *buf, int maxSize)
     // 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

-    // all, so load it dynamically here if needed
+    // 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() )
     {
     wxDynamicLibrary dllWinsock(_T("ws2_32.dll"), wxDL_VERBATIM);
     if ( dllWinsock.IsLoaded() )
     {


@@ -354,8 +364,9 @@ error:
 
 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 ) {


@@ -371,34 +382,33 @@ 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__)
       // Nothing
 #else
     #endif
 #elif defined(__WXWINCE__)
       // Nothing
 #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


@@ -408,44 +418,38 @@ 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),
-                        wxStringBuffer(strPath, MAX_PATH), MAX_PATH);
+    }

 
 

-    // 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
+    {
+        wxString strPath;
+        ::GetModuleFileName(::GetModuleHandle(NULL),
+                            wxStringBuffer(strPath, MAX_PATH), MAX_PATH);

 
 

+        // extract the dir name
+        wxSplitPath(strPath, &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))


@@ -922,7 +926,7 @@ bool wxShutdown(wxShutdownFlags wFlags)
                 return FALSE;
         }
 
                 return FALSE;
         }
 

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

     }
 
     return bOK;
     }
 
     return bOK;


@@ -1052,12 +1056,12 @@ wxToolkitInfo& wxAppTraits::GetToolkitInfo()
                 case VER_PLATFORM_WIN32_CE:
                     s_ver = wxWINDOWS_CE;
                     break;
                 case VER_PLATFORM_WIN32_CE:
                     s_ver = wxWINDOWS_CE;
                     break;

-#endif                    
+#endif

             }
         }
     }
 
             }
         }
     }
 

-    static wxToolkitInfo info;    
+    static wxToolkitInfo info;

     info.versionMajor = s_major;
     info.versionMinor = s_minor;
     info.os = s_ver;
     info.versionMajor = s_major;
     info.versionMinor = s_minor;
     info.os = s_ver;


@@ -1232,3 +1236,62 @@ 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 wxWindows 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;
+}
+