some app.h cleanup: minimize includes, use static cast

[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 9dc4716278296bcdb0932728dc088a8c31ddf2b8..14818e3d7f0f214d12a1f1597c3eb9c0256067be 100644 (file)
--- a/include/wx/msw/ole/oleutils.h
+++ b/include/wx/msw/ole/oleutils.h
@@ -12,19 +12,54 @@
 #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"
+#include "wx/log.h"
 
 // ============================================================================
 // General purpose functions and macros
 // ============================================================================
 
+// ----------------------------------------------------------------------------
+// initialize/cleanup OLE
+// ----------------------------------------------------------------------------
+
+// call OleInitialize() or CoInitialize[Ex]() depending on the platform
+//
+// return true if ok, false otherwise
+inline bool wxOleInitialize()
+{
+    // we need to initialize OLE library
+#ifdef __WXWINCE__
+    if ( FAILED(::CoInitializeEx(NULL, COINIT_MULTITHREADED)) )
+#else
+    if ( FAILED(::OleInitialize(NULL)) )
+#endif
+    {
+        wxLogError(_("Cannot initialize OLE"));
+
+        return false;
+    }
+
+    return true;
+}
+
+inline void wxOleUninitialize()
+{
+#ifdef __WXWINCE__
+    ::CoUninitialize();
+#else
+    ::OleUninitialize();
+#endif
+}
+
 // ----------------------------------------------------------------------------
 // misc helper functions/macros
 // ----------------------------------------------------------------------------
@@ -161,11 +196,11 @@ void wxLogQueryInterface(const wxChar *szInterface, REFIID riid);
 void wxLogAddRef (const wxChar *szInterface, ULONG cRef);
 void wxLogRelease(const wxChar *szInterface, ULONG cRef);
 
-#else   //!WXDEBUG
+#else   //!__WXDEBUG__
   #define   wxLogQueryInterface(szInterface, riid)
   #define   wxLogAddRef(szInterface, cRef)
   #define   wxLogRelease(szInterface, cRef)
-#endif  //WXDEBUG
+#endif  //__WXDEBUG__
 
 // wrapper around BSTR type (by Vadim Zeitlin)
 
@@ -194,17 +229,26 @@ private:
 };
 
 // Convert variants
-class WXDLLEXPORT wxVariant;
+class WXDLLIMPEXP_BASE wxVariant;
 
-bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant) ;
-bool wxConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant) ;
+WXDLLEXPORT bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant);
+WXDLLEXPORT bool wxConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant);
 
 // Convert string to Unicode
-BSTR wxConvertStringToOle(const wxString& str);
+WXDLLEXPORT BSTR wxConvertStringToOle(const wxString& str);
 
 // Convert string from BSTR to wxString
-wxString wxConvertStringFromOle(BSTR bStr);
+WXDLLEXPORT wxString wxConvertStringFromOle(BSTR bStr);
 
+#else // !wxUSE_OLE
 
-#endif  //_WX_OLEUTILS_H
+// ----------------------------------------------------------------------------
+// stub functions to avoid #if wxUSE_OLE in the main code
+// ----------------------------------------------------------------------------
+
+inline bool wxOleInitialize() { return false; }
+inline void wxOleUninitialize() { }
 
+#endif // wxUSE_OLE/!wxUSE_OLE
+
+#endif  //_WX_OLEUTILS_H