michael@0: // Windows/COM.h
michael@0: 
michael@0: #ifndef __WINDOWS_COM_H
michael@0: #define __WINDOWS_COM_H
michael@0: 
michael@0: #include "Common/String.h"
michael@0: 
michael@0: namespace NWindows {
michael@0: namespace NCOM {
michael@0: 
michael@0: class CComInitializer
michael@0: {
michael@0: public:
michael@0:   CComInitializer() { CoInitialize(NULL);};
michael@0:   ~CComInitializer() { CoUninitialize(); };
michael@0: };
michael@0: 
michael@0: class CStgMedium
michael@0: {
michael@0:   STGMEDIUM _object;
michael@0: public:
michael@0:   bool _mustBeReleased;
michael@0:   CStgMedium(): _mustBeReleased(false) {}
michael@0:   ~CStgMedium() { Free(); }
michael@0:   void Free() 
michael@0:   { 
michael@0:     if(_mustBeReleased) 
michael@0:       ReleaseStgMedium(&_object); 
michael@0:     _mustBeReleased = false;
michael@0:   }
michael@0:   const STGMEDIUM* operator->() const { return &_object;}
michael@0:   STGMEDIUM* operator->() { return &_object;}
michael@0:   STGMEDIUM* operator&() { return &_object; }
michael@0: };
michael@0: 
michael@0: //////////////////////////////////
michael@0: // GUID <--> String Conversions
michael@0: UString GUIDToStringW(REFGUID guid);
michael@0: AString GUIDToStringA(REFGUID guid);
michael@0: #ifdef UNICODE
michael@0:   #define GUIDToString GUIDToStringW
michael@0: #else
michael@0:   #define GUIDToString GUIDToStringA
michael@0: #endif // !UNICODE
michael@0: 
michael@0: HRESULT StringToGUIDW(const wchar_t *string, GUID &classID);
michael@0: HRESULT StringToGUIDA(const char *string, GUID &classID);
michael@0: #ifdef UNICODE
michael@0:   #define StringToGUID StringToGUIDW
michael@0: #else
michael@0:   #define StringToGUID StringToGUIDA
michael@0: #endif // !UNICODE
michael@0: 
michael@0:   
michael@0: }}
michael@0: 
michael@0: #endif