Don't send event from wxMSW::wxListCtrl::DeleteAllItems() if it did nothing.

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

diff --git a/src/msw/mediactrl_am.cpp b/src/msw/mediactrl_am.cpp
index 75acd4f99e765b256cb8e4013818a37592a41b7d..dd80e3963dbe98a062b176d3b8ba0221f0e040f9 100644 (file)
--- a/src/msw/mediactrl_am.cpp
+++ b/src/msw/mediactrl_am.cpp
@@ -1478,11 +1478,12 @@ public:
 #endif
     wxSize m_bestSize;  // Cached size
 
-#ifdef __WXDEBUG__  // Stuff for getting useful debugging strings
+    // Stuff for getting useful debugging strings
+#if wxDEBUG_LEVEL
     wxDynamicLibrary m_dllQuartz;
     LPAMGETERRORTEXT m_lpAMGetErrorText;
     wxString GetErrorString(HRESULT hrdsv);
-#endif // __WXDEBUG__
+#endif // wxDEBUG_LEVEL
     wxEvtHandler* m_evthandler;
 
     friend class wxAMMediaEvtHandler;
@@ -1509,7 +1510,7 @@ private:
     bool m_bLoadEventSent; // Whether or not FinishLoaded was already called
                            // prevents it being called multiple times
 
-    DECLARE_NO_COPY_CLASS(wxAMMediaEvtHandler)
+    wxDECLARE_NO_COPY_CLASS(wxAMMediaEvtHandler);
 };
 
 //===========================================================================
@@ -1527,7 +1528,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxAMMediaBackend, wxMediaBackend)
 //---------------------------------------------------------------------------
 // Usual debugging macros
 //---------------------------------------------------------------------------
-#ifdef __WXDEBUG__
+#if wxDEBUG_LEVEL
 #define MAX_ERROR_TEXT_LEN 160
 
 // Get the error string for Active Movie
@@ -1614,13 +1615,13 @@ bool wxAMMediaBackend::CreateControl(wxControl* ctrl, wxWindow* parent,
 {
     // First get the AMGetErrorText procedure in debug
     // mode for more meaningful messages
-#ifdef __WXDEBUG__
-    if ( m_dllQuartz.Load(_T("quartz.dll"), wxDL_VERBATIM) )
+#if wxDEBUG_LEVEL
+    if ( m_dllQuartz.Load(wxT("quartz.dll"), wxDL_VERBATIM) )
     {
         m_lpAMGetErrorText = (LPAMGETERRORTEXT)
                                 m_dllQuartz.GetSymbolAorW(wxT("AMGetErrorText"));
     }
-#endif // __WXDEBUG__
+#endif // wxDEBUG_LEVEL
 
 
 
@@ -1983,7 +1984,7 @@ double wxAMMediaBackend::GetVolume()
 bool wxAMMediaBackend::SetVolume(double dVolume)
 {
     // inverse the transformation above
-    long lVolume = 2000*log10(dVolume + (1 - dVolume)*0.00001);
+    long lVolume = static_cast<long>(2000*log10(dVolume + (1 - dVolume)*0.00001));
 
     HRESULT hr = GetAM()->put_Volume(lVolume);
     if(FAILED(hr))
@@ -2091,36 +2092,37 @@ void wxAMMediaBackend::DoGetDownloadProgress(wxLongLong* pLoadProgress,
                                              wxLongLong* pLoadTotal)
 {
 #ifndef __WXWINCE__
-    LONGLONG loadTotal = 0, loadProgress = 0;
-    IUnknown* pFG;
-    IAMOpenProgress* pOP;
-    HRESULT hr;
-    hr = m_pAM->get_FilterGraph(&pFG);
-    if(SUCCEEDED(hr))
+    IUnknown* pFG = NULL;
+
+    HRESULT hr = m_pAM->get_FilterGraph(&pFG);
+
+    // notice that the call above may return S_FALSE and leave pFG NULL
+    if(SUCCEEDED(hr) && pFG)
     {
+        IAMOpenProgress* pOP = NULL;
         hr = pFG->QueryInterface(IID_IAMOpenProgress, (void**)&pOP);
-        if(SUCCEEDED(hr))
-    {
+        if(SUCCEEDED(hr) && pOP)
+        {
+            LONGLONG
+                loadTotal = 0,
+                loadProgress = 0;
             hr = pOP->QueryProgress(&loadTotal, &loadProgress);
             pOP->Release();
+
+            if(SUCCEEDED(hr))
+            {
+                *pLoadProgress = loadProgress;
+                *pLoadTotal = loadTotal;
+                pFG->Release();
+                return;
+            }
         }
         pFG->Release();
     }
+#endif // !__WXWINCE__
 
-    if(SUCCEEDED(hr))
-    {
-        *pLoadProgress = loadProgress;
-        *pLoadTotal = loadTotal;
-    }
-    else
-#endif
-    {
-        // When not loading from a URL QueryProgress will return
-        // E_NOINTERFACE or whatever
-        // wxAMFAIL(hr);
-        *pLoadProgress = 0;
-        *pLoadTotal = 0;
-    }
+    *pLoadProgress = 0;
+    *pLoadTotal = 0;
 }
 
 //---------------------------------------------------------------------------