Added wxSound for Windows support (successful WAV playback on VC++ 5)

Fixes/Updates for the rest.
PNM decoder uses now wxBufferedInputStream to (to be tested).
Support for G72X is on the road ...


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3487 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

utils/wxMMedia2/lib/sndbase.h

@@ -98,6 +98,9 @@ class wxSoundStream {
   wxSoundError GetError() const { return m_snderror; }
   size_t GetLastAccess() const { return m_lastcount; }
 
+  // This is only useful for device (I think).
+  virtual bool QueueFilled() const { return TRUE; }
+
  protected:
   // Current sound format
   wxSoundFormatBase *m_sndformat;