wxCriticalSection changes undone - should work now

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

diff --git a/src/msw/registry.cpp b/src/msw/registry.cpp
index ef80ce3c23502725ee20e95b6240b86028068a4c..099b376cfd5dffd1f0b1ef33e1401988efe9fec7 100644 (file)
--- a/src/msw/registry.cpp
+++ b/src/msw/registry.cpp
@@ -27,9 +27,10 @@
 #include  "wx/string.h"
 #include  "wx/intl.h"
 #include  "wx/log.h"
-
 #include  "wx/config.h"    // for wxExpandEnvVars
 
+#ifndef __WIN16__
+
 // Windows headers
 /*
 #define   STRICT
@@ -144,7 +145,7 @@ wxRegKey::StdKey wxRegKey::ExtractKeyName(wxString& strKey)
 {
   wxString strRoot = strKey.Left(REG_SEPARATOR);
 
-  HKEY hRootKey;
+  HKEY hRootKey = 0;
   size_t ui;
   for ( ui = 0; ui < nStdKeys; ui++ ) {
     if ( strRoot.CmpNoCase(aStdKeys[ui].szName) == 0 || 
@@ -313,7 +314,7 @@ bool wxRegKey::GetKeyInfo(ulong *pnSubKeys,
                           ulong *pnMaxValueLen) const
 #endif
 {
-#ifdef  __WIN32__
+#if defined(__WIN32__) && !defined(__TWIN32__)
   m_dwLastError = ::RegQueryInfoKey
                   (
                     (HKEY) m_hKey,
@@ -426,6 +427,18 @@ bool wxRegKey::DeleteSelf()
     }
   }
 
+  // prevent a buggy program from erasing one of the root registry keys or an
+  // immediate subkey (i.e. one which doesn't have '\\' inside) of any other
+  // key except HKCR (HKCR has some "deleteable" subkeys)
+  if ( m_strKey.IsEmpty() || (m_hRootKey != HKCR &&
+       m_strKey.Find(REG_SEPARATOR) == wxNOT_FOUND) ) {
+      wxLogError(_("Registry key '%s' is needed for normal system operation,\n"
+                   "deleting it will leave your system in unusable state:\n"
+                   "operation aborted."), GetFullName(this));
+
+      return FALSE;
+  }
+
   // we can't delete keys while enumerating because it confuses GetNextKey, so
   // we first save the key names and then delete them all
   wxArrayString astrSubkeys;
@@ -473,8 +486,8 @@ bool wxRegKey::DeleteValue(const char *szValue)
   if ( !Open() )
     return FALSE;
 
-  #ifdef  __WIN32__
-    m_dwLastError = RegDeleteValue((HKEY) m_hKey, szValue);
+#if defined(__WIN32__) && !defined(__TWIN32__)
+    m_dwLastError = RegDeleteValue((HKEY) m_hKey, (char*) (const char*) szValue);
     if ( m_dwLastError != ERROR_SUCCESS ) {
       wxLogSysError(m_dwLastError, _("can't delete value '%s' from key '%s'"),
                     szValue, GetName().c_str());
@@ -508,7 +521,7 @@ bool wxRegKey::HasValue(const char *szValue) const
   
   #ifdef  __WIN32__
     if ( CONST_CAST Open() ) {
-      return RegQueryValueEx((HKEY) m_hKey, szValue, RESERVED,
+      return RegQueryValueEx((HKEY) m_hKey, (char*) (const char*) szValue, RESERVED,
                              NULL, NULL, NULL) == ERROR_SUCCESS;
     }
     else
@@ -522,6 +535,9 @@ bool wxRegKey::HasValue(const char *szValue) const
 // returns TRUE if this key has any subkeys
 bool wxRegKey::HasSubkeys() const
 {
+  // suppress possible messages from GetFirstKey()
+  wxLogNull nolog;
+  
   // just call GetFirstKey with dummy parameters
   wxString str;
   long     l;
@@ -531,20 +547,23 @@ bool wxRegKey::HasSubkeys() const
 // returns TRUE if given subkey exists
 bool wxRegKey::HasSubKey(const char *szKey) const
 {
+  // this function should be silent, so suppress possible messages from Open()
+  wxLogNull nolog;
+  
   if ( CONST_CAST Open() )
     return KeyExists(m_hKey, szKey);
   else
     return FALSE;
 }
 
-wxRegKey::ValueType wxRegKey::GetValueType(const char *szValue)
+wxRegKey::ValueType wxRegKey::GetValueType(const char *szValue) const
 {
   #ifdef  __WIN32__
-    if ( !Open() )
+    if ( ! CONST_CAST Open() )
       return Type_None;
 
     DWORD dwType;
-    m_dwLastError = RegQueryValueEx((HKEY) m_hKey, szValue, RESERVED,
+    m_dwLastError = RegQueryValueEx((HKEY) m_hKey, (char*) (const char*) szValue, RESERVED,
                                     &dwType, NULL, NULL);
     if ( m_dwLastError != ERROR_SUCCESS ) {
       wxLogSysError(m_dwLastError, _("can't read value of key '%s'"),
@@ -561,6 +580,10 @@ wxRegKey::ValueType wxRegKey::GetValueType(const char *szValue)
 #ifdef  __WIN32__
 bool wxRegKey::SetValue(const char *szValue, long lValue)
 {
+#ifdef __TWIN32__
+  wxFAIL_MSG("RegSetValueEx not implemented by TWIN32");
+  return FALSE;
+#else
   if ( CONST_CAST Open() ) {
     m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_DWORD,
                                   (RegString)&lValue, sizeof(lValue));
@@ -571,6 +594,7 @@ bool wxRegKey::SetValue(const char *szValue, long lValue)
   wxLogSysError(m_dwLastError, _("can't set value of '%s'"),
                 GetFullName(this, szValue));
   return FALSE;
+#endif
 }
 
 bool wxRegKey::QueryValue(const char *szValue, long *plValue) const
@@ -578,7 +602,7 @@ bool wxRegKey::QueryValue(const char *szValue, long *plValue) const
   if ( CONST_CAST Open() ) {
     DWORD dwType, dwSize = sizeof(DWORD);
     RegString pBuf = (RegString)plValue;
-    m_dwLastError = RegQueryValueEx((HKEY) m_hKey, szValue, RESERVED,
+    m_dwLastError = RegQueryValueEx((HKEY) m_hKey, (char*) (const char*) szValue, RESERVED,
                                     &dwType, pBuf, &dwSize);
     if ( m_dwLastError != ERROR_SUCCESS ) {
       wxLogSysError(m_dwLastError, _("can't read value of key '%s'"),
@@ -605,11 +629,11 @@ bool wxRegKey::QueryValue(const char *szValue, wxString& strValue) const
     #ifdef  __WIN32__
       // first get the type and size of the data
       DWORD dwType, dwSize;
-      m_dwLastError = RegQueryValueEx((HKEY) m_hKey, szValue, RESERVED,
+      m_dwLastError = RegQueryValueEx((HKEY) m_hKey, (char*) (const char*) szValue, RESERVED,
                                       &dwType, NULL, &dwSize);
       if ( m_dwLastError == ERROR_SUCCESS ) {
         RegString pBuf = (RegString)strValue.GetWriteBuf(dwSize);
-        m_dwLastError = RegQueryValueEx((HKEY) m_hKey, szValue, RESERVED,
+        m_dwLastError = RegQueryValueEx((HKEY) m_hKey, (char*) (const char*) szValue, RESERVED,
                                         &dwType, pBuf, &dwSize);
         strValue.UngetWriteBuf();
         if ( m_dwLastError == ERROR_SUCCESS ) {
@@ -639,7 +663,7 @@ bool wxRegKey::QueryValue(const char *szValue, wxString& strValue) const
 bool wxRegKey::SetValue(const char *szValue, const wxString& strValue)
 {
   if ( CONST_CAST Open() ) {
-    #ifdef  __WIN32__
+#if defined( __WIN32__) && !defined(__TWIN32__)
       m_dwLastError = RegSetValueEx((HKEY) m_hKey, szValue, (DWORD) RESERVED, REG_SZ,
                                     (RegString)strValue.c_str(), 
                                     strValue.Len() + 1);
@@ -690,7 +714,7 @@ bool wxRegKey::GetNextValue(wxString& strValueName, long& lIndex) const
   if ( lIndex == -1 )
     return FALSE;
 
-  #ifdef  __WIN32__
+#if defined( __WIN32__) && !defined(__TWIN32__)
     char  szValueName[1024];                  // @@ use RegQueryInfoKey...
     DWORD dwValueLen = WXSIZEOF(szValueName);
 
@@ -764,6 +788,21 @@ bool wxRegKey::GetNextKey(wxString& strKeyName, long& lIndex) const
   return TRUE;
 }
 
+// returns TRUE if the value contains a number (else it's some string)
+bool wxRegKey::IsNumericValue(const char *szValue) const
+  { 
+      ValueType type = GetValueType(szValue);
+      switch ( type ) {
+        case Type_Dword:
+        case Type_Dword_little_endian:
+        case Type_Dword_big_endian:
+            return TRUE;
+
+        default:
+            return FALSE;
+      }
+  }
+
 // ============================================================================
 // implementation of global private functions
 // ============================================================================
@@ -793,3 +832,7 @@ void RemoveTrailingSeparator(wxString& str)
   if ( !str.IsEmpty() && str.Last() == REG_SEPARATOR )
     str.Truncate(str.Len() - 1);
 }
+
+#endif
+  // __WIN16__
+