always properly check if SeekI() calls succeded; this makes CanRead() functions of...

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

diff --git a/src/msw/snglinst.cpp b/src/msw/snglinst.cpp
index ab93c3d66b5e224185e947ee7bd405bda81467d3..85b76977abfc4baed1d09835d009c829b77dd616 100644 (file)
--- a/src/msw/snglinst.cpp
+++ b/src/msw/snglinst.cpp
@@ -7,7 +7,7 @@
 // Created:     08.06.01
 // RCS-ID:      $Id$
 // Copyright:   (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// License:     wxWindows license
+// License:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
@@ -18,10 +18,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "snglinst.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -44,7 +40,7 @@
 // wxSingleInstanceCheckerImpl: the real implementation class
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxSingleInstanceCheckerImpl
+class WXDLLIMPEXP_BASE wxSingleInstanceCheckerImpl
 {
 public:
     wxSingleInstanceCheckerImpl()
@@ -56,23 +52,23 @@ public:
 
     bool Create(const wxString& name)
     {
-        m_hMutex = ::CreateMutex(NULL, FALSE, name);
+        m_hMutex = ::CreateMutex(NULL, FALSE, name.t_str());
         if ( !m_hMutex )
         {
             wxLogLastError(_T("CreateMutex"));
 
-            return FALSE;
+            return false;
         }
 
         // mutex was either created or opened - see what really happened
         m_wasOpened = ::GetLastError() == ERROR_ALREADY_EXISTS;
 
-        return TRUE;
+        return true;
     }
 
     bool WasOpened() const
     {
-        wxCHECK_MSG( m_hMutex, FALSE,
+        wxCHECK_MSG( m_hMutex, false,
                      _T("can't be called if mutex creation failed") );
 
         return m_wasOpened;
@@ -95,6 +91,8 @@ private:
 
     // the mutex handle, may be NULL
     HANDLE m_hMutex;
+
+    DECLARE_NO_COPY_CLASS(wxSingleInstanceCheckerImpl)
 };
 
 // ============================================================================
@@ -117,7 +115,7 @@ bool wxSingleInstanceChecker::Create(const wxString& name,
 
 bool wxSingleInstanceChecker::IsAnotherRunning() const
 {
-    wxCHECK_MSG( m_impl, FALSE, _T("must call Create() first") );
+    wxCHECK_MSG( m_impl, false, _T("must call Create() first") );
 
     // if the mutex had been opened, another instance is running - otherwise we
     // would have created it