X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c493691d6249650c0366fd9aaaca8572e3ff3edd..1f0acb435592470b421b80df854fbbb08cd2853f:/include/wx/msw/ole/oleutils.h

diff --git a/include/wx/msw/ole/oleutils.h b/include/wx/msw/ole/oleutils.h
index 9c070e9e0c..1b4d5e6d7e 100644
--- a/include/wx/msw/ole/oleutils.h
+++ b/include/wx/msw/ole/oleutils.h
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        oleutils.h
+// Name:        wx/msw/ole/oleutils.h
 // Purpose:     OLE helper routines, OLE debugging support &c
 // Author:      Vadim Zeitlin
 // Modified by:
@@ -12,14 +12,12 @@
 #ifndef   _WX_OLEUTILS_H
 #define   _WX_OLEUTILS_H
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma interface "oleutils.h"
-#endif
-
 #include "wx/defs.h"
 
 #if wxUSE_OLE
 
+// ole2.h includes windows.h, so include wrapwin.h first
+#include "wx/msw/wrapwin.h"
 // get IUnknown, REFIID &c
 #include <ole2.h>
 #include "wx/intl.h"
@@ -38,12 +36,19 @@
 // return true if ok, false otherwise
 inline bool wxOleInitialize()
 {
-    // we need to initialize OLE library
+    HRESULT
 #ifdef __WXWINCE__
-    if ( FAILED(::CoInitializeEx(NULL, COINIT_MULTITHREADED)) )
+     hr = ::CoInitializeEx(NULL, COINIT_MULTITHREADED);
 #else
-    if ( FAILED(::OleInitialize(NULL)) )
+     hr = ::OleInitialize(NULL);
 #endif
+
+    // RPC_E_CHANGED_MODE indicates that OLE had been already initialized
+    // before, albeit with different mode. Don't consider it to be an error as
+    // we don't actually care ourselves about the mode used so this allows the
+    // main application to call OleInitialize() on its own before we do if it
+    // needs non-default mode.
+    if ( hr != RPC_E_CHANGED_MODE && FAILED(hr) )
     {
         wxLogError(_("Cannot initialize OLE"));
 
@@ -145,7 +150,7 @@ private:
 #define   IMPLEMENT_IUNKNOWN_METHODS(classname)                               \
   STDMETHODIMP classname::QueryInterface(REFIID riid, void **ppv)             \
   {                                                                           \
-    wxLogQueryInterface(_T(#classname), riid);                                \
+    wxLogQueryInterface(wxT(#classname), riid);                               \
                                                                               \
     if ( IsIidFromList(riid, ms_aIids, WXSIZEOF(ms_aIids)) ) {                \
       *ppv = this;                                                            \
@@ -162,14 +167,14 @@ private:
                                                                               \
   STDMETHODIMP_(ULONG) classname::AddRef()                                    \
   {                                                                           \
-    wxLogAddRef(_T(#classname), m_cRef);                                      \
+    wxLogAddRef(wxT(#classname), m_cRef);                                     \
                                                                               \
     return ++m_cRef;                                                          \
   }                                                                           \
                                                                               \
   STDMETHODIMP_(ULONG) classname::Release()                                   \
   {                                                                           \
-    wxLogRelease(_T(#classname), m_cRef);                                     \
+    wxLogRelease(wxT(#classname), m_cRef);                                    \
                                                                               \
     if ( --m_cRef == wxAutoULong(0) ) {                                                    \
       delete this;                                                            \
@@ -206,41 +211,40 @@ void wxLogRelease(const wxChar *szInterface, ULONG cRef);
 
 // wrapper around BSTR type (by Vadim Zeitlin)
 
-class WXDLLEXPORT wxBasicString
+class WXDLLIMPEXP_CORE wxBasicString
 {
 public:
     // ctors & dtor
-    wxBasicString(const char *sz);
     wxBasicString(const wxString& str);
+    wxBasicString(const wxBasicString& bstr);
     ~wxBasicString();
 
-    void Init(const char* sz);
+    wxBasicString& operator=(const wxBasicString& bstr);
 
     // 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); }
+        // just get the string
+    operator BSTR() const { return m_bstrBuf; }
+        // retrieve a copy of our string - caller must SysFreeString() it later!
+    BSTR Get() const { return SysAllocString(m_bstrBuf); }
 
 private:
-    // @@@ not implemented (but should be)
-    wxBasicString(const wxBasicString&);
-    wxBasicString& operator=(const wxBasicString&);
-
-    OLECHAR *m_wzBuf;     // actual string
+    // actual string
+    BSTR m_bstrBuf;
 };
 
+#if wxUSE_VARIANT
 // Convert variants
-class WXDLLIMPEXP_BASE wxVariant;
+class WXDLLIMPEXP_FWD_BASE wxVariant;
 
-bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant) ;
-bool wxConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant) ;
+WXDLLIMPEXP_CORE bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant);
+WXDLLIMPEXP_CORE bool wxConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant);
+#endif // wxUSE_VARIANT
 
 // Convert string to Unicode
-BSTR wxConvertStringToOle(const wxString& str);
+WXDLLIMPEXP_CORE BSTR wxConvertStringToOle(const wxString& str);
 
 // Convert string from BSTR to wxString
-wxString wxConvertStringFromOle(BSTR bStr);
+WXDLLIMPEXP_CORE wxString wxConvertStringFromOle(BSTR bStr);
 
 #else // !wxUSE_OLE