Allow headers to be compiled in Objective-C++ mode

[wxWidgets.git] / include / wx / msw / ole / oleutils.h

diff --git a/include/wx/msw/ole/oleutils.h b/include/wx/msw/ole/oleutils.h
index 98cb02176b34261d9940e052a5fc0d2d01eb5508..afab7f2854375b1a95acbd73ebd5d0b795b542eb 100644 (file)
--- a/include/wx/msw/ole/oleutils.h
+++ b/include/wx/msw/ole/oleutils.h
@@ -17,9 +17,10 @@
 #endif
 
 #include "wx/defs.h"
 #endif
 
 #include "wx/defs.h"

-#ifdef wxUSE_NORLANDER_HEADERS
+
+// get IUnknown, REFIID &c

 #include <ole2.h>
 #include <ole2.h>

-#endif
+

 // ============================================================================
 // General purpose functions and macros
 // ============================================================================
 // ============================================================================
 // General purpose functions and macros
 // ============================================================================


@@ -39,7 +40,7 @@ inline void ReleaseInterface(IUnknown *pIUnk)
 #define   RELEASE_AND_NULL(p)   if ( (p) != NULL ) { p->Release(); p = NULL; };
 
 // return TRUE if the iid is in the array
 #define   RELEASE_AND_NULL(p)   if ( (p) != NULL ) { p->Release(); p = NULL; };
 
 // return TRUE if the iid is in the array

-bool IsIidFromList(REFIID riid, const IID *aIids[], size_t nCount);
+extern bool IsIidFromList(REFIID riid, const IID *aIids[], size_t nCount);

 
 // ============================================================================
 // IUnknown implementation helpers
 
 // ============================================================================
 // IUnknown implementation helpers


@@ -51,20 +52,42 @@ bool IsIidFromList(REFIID riid, const IID *aIids[], size_t nCount);
    implementation is quite enough.
 
    Usage is trivial: here is all you should have
    implementation is quite enough.
 
    Usage is trivial: here is all you should have

-   1) DECLARE_IUNKNOWN_METHOS in your (IUnknown derived!) class declaration
+   1) DECLARE_IUNKNOWN_METHODS in your (IUnknown derived!) class declaration

    2) BEGIN/END_IID_TABLE with ADD_IID in between for all interfaces you
       support (at least all for which you intent to return 'this' from QI,
       i.e. you should derive from IFoo if you have ADD_IID(Foo)) somewhere else
    2) BEGIN/END_IID_TABLE with ADD_IID in between for all interfaces you
       support (at least all for which you intent to return 'this' from QI,
       i.e. you should derive from IFoo if you have ADD_IID(Foo)) somewhere else

-   3) IMPLEMENT_IUNKNOWN_METHOS somewhere also
+   3) IMPLEMENT_IUNKNOWN_METHODS somewhere also

 
    These macros are quite simple: AddRef and Release are trivial and QI does
    lookup in a static member array of IIDs and returns 'this' if it founds
    the requested interface in it or E_NOINTERFACE if not.
  */
 
 
    These macros are quite simple: AddRef and Release are trivial and QI does
    lookup in a static member array of IIDs and returns 'this' if it founds
    the requested interface in it or E_NOINTERFACE if not.
  */
 

+/*
+  wxAutoULong: this class is used for automatically initalising m_cRef to 0
+*/
+class wxAutoULong
+{
+public:
+    wxAutoULong(ULONG value = 0) : m_Value(value) { }
+
+    operator ULONG&() { return m_Value; }
+    ULONG& operator=(ULONG value) { return m_Value = value; }
+    
+    wxAutoULong& operator++() { ++m_Value; return *this; }
+    const wxAutoULong operator++( int ) { wxAutoULong temp = *this; ++m_Value; return temp; }
+
+    wxAutoULong& operator--() { --m_Value; return *this; }
+    const wxAutoULong operator--( int ) { wxAutoULong temp = *this; --m_Value; return temp; }
+
+private:
+    ULONG m_Value;
+};
+

 // declare the methods and the member variable containing reference count
 // you must also define the ms_aIids array somewhere with BEGIN_IID_TABLE
 // and friends (see below)
 // declare the methods and the member variable containing reference count
 // you must also define the ms_aIids array somewhere with BEGIN_IID_TABLE
 // and friends (see below)

+

 #define   DECLARE_IUNKNOWN_METHODS                                            \
   public:                                                                     \
     STDMETHODIMP          QueryInterface(REFIID, void **);                    \
 #define   DECLARE_IUNKNOWN_METHODS                                            \
   public:                                                                     \
     STDMETHODIMP          QueryInterface(REFIID, void **);                    \


@@ -72,7 +95,7 @@ bool IsIidFromList(REFIID riid, const IID *aIids[], size_t nCount);
     STDMETHODIMP_(ULONG)  Release();                                          \
   private:                                                                    \
     static  const IID    *ms_aIids[];                                         \
     STDMETHODIMP_(ULONG)  Release();                                          \
   private:                                                                    \
     static  const IID    *ms_aIids[];                                         \

-    ULONG                 m_cRef
+    wxAutoULong           m_cRef

 
 // macros for declaring supported interfaces
 // NB: you should write ADD_INTERFACE(Foo) and not ADD_INTERFACE(IID_IFoo)!
 
 // macros for declaring supported interfaces
 // NB: you should write ADD_INTERFACE(Foo) and not ADD_INTERFACE(IID_IFoo)!


@@ -126,7 +149,7 @@ bool IsIidFromList(REFIID riid, const IID *aIids[], size_t nCount);
 // VZ: I don't know it's not done for compilers other than VC++ but I leave it
 //     as is. Please note, though, that tracing OLE interface calls may be
 //     incredibly useful when debugging OLE programs.
 // VZ: I don't know it's not done for compilers other than VC++ but I leave it
 //     as is. Please note, though, that tracing OLE interface calls may be
 //     incredibly useful when debugging OLE programs.

-#if defined(__WXDEBUG__) && defined(__VISUALC__) && (__VISUALC__ >= 1000)
+#if defined(__WXDEBUG__) && ( ( defined(__VISUALC__) && (__VISUALC__ >= 1000) ) || defined(__MWERKS__) )

 // ----------------------------------------------------------------------------
 // All OLE specific log functions have DebugTrace level (as LogTrace)
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // All OLE specific log functions have DebugTrace level (as LogTrace)
 // ----------------------------------------------------------------------------


@@ -144,5 +167,44 @@ void wxLogRelease(const wxChar *szInterface, ULONG cRef);
   #define   wxLogRelease(szInterface, cRef)
 #endif  //WXDEBUG
 
   #define   wxLogRelease(szInterface, cRef)
 #endif  //WXDEBUG
 

+// wrapper around BSTR type (by Vadim Zeitlin)
+
+class WXDLLEXPORT wxBasicString
+{
+public:
+    // ctors & dtor
+    wxBasicString(const char *sz);
+    wxBasicString(const wxString& str);
+    ~wxBasicString();
+    
+    void Init(const char* sz);
+    
+    // accessors
+    // just get the string
+    operator BSTR() const { return m_wzBuf; }
+    // retrieve a copy of our string - caller must SysFreeString() it later!
+    BSTR Get() const { return SysAllocString(m_wzBuf); }
+    
+private:
+    // @@@ not implemented (but should be)
+    wxBasicString(const wxBasicString&);
+    wxBasicString& operator=(const wxBasicString&);
+    
+    OLECHAR *m_wzBuf;     // actual string
+};
+
+// Convert variants
+class WXDLLEXPORT wxVariant;
+
+bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant) ;
+bool wxConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant) ;
+
+// Convert string to Unicode
+BSTR wxConvertStringToOle(const wxString& str);
+
+// Convert string from BSTR to wxString
+wxString wxConvertStringFromOle(BSTR bStr);
+
+

 #endif  //_WX_OLEUTILS_H
 
 #endif  //_WX_OLEUTILS_H