]> git.saurik.com Git - wxWidgets.git/blobdiff - src/msw/ole/automtn.cpp
add support for multiline labels in wxToggleButton
[wxWidgets.git] / src / msw / ole / automtn.cpp
index 3870d9626358a310e2be0f8a7a56af27fee0bf24..ed03f00d7f0033e44b02cf986524a9beefca05ca 100644 (file)
@@ -1,95 +1,60 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        automtn.cpp
+// Name:        src/msw/ole/automtn.cpp
 // Purpose:     OLE automation utilities
 // Author:      Julian Smart
 // Modified by:
 // Created:     11/6/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998, Julian Smart
-// Licence:     wxWindows Licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "automtn.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #if defined(__BORLANDC__)
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
-#include "wx/defs.h"
-
-// Watcom C++ gives a linker error if this is compiled in.
 // With Borland C++, all samples crash if this is compiled in.
-#if wxUSE_OLE &&!defined(__WATCOMC__) && !(defined(__BORLANDC__) && (__BORLANDC__ < 0x520)) && !defined(__CYGWIN10__) && !defined(__WXWINE__)
+#if (defined(__BORLANDC__) && (__BORLANDC__ < 0x520)) || defined(__CYGWIN10__)
+    #undef wxUSE_OLE_AUTOMATION
+    #define wxUSE_OLE_AUTOMATION 0
+#endif
 
-#include "wx/log.h"
-#include "wx/msw/ole/automtn.h"
+#if wxUSE_OLE_AUTOMATION
+
+#ifndef WX_PRECOMP
+    #include "wx/log.h"
+    #include "wx/math.h"
+#endif
+
+#define _FORCENAMELESSUNION
 #include "wx/msw/private.h"
+#include "wx/msw/ole/oleutils.h"
+#include "wx/msw/ole/automtn.h"
 
-#include <math.h>
+#ifdef __WXWINCE__
+#include "wx/msw/wince/time.h"
+#else
 #include <time.h>
+#endif
 
 #include <wtypes.h>
 #include <unknwn.h>
+
 #include <ole2.h>
 #define _huge
-#include <ole2ver.h>
-#include <oleauto.h>
-
-// wrapper around BSTR type (by Vadim Zeitlin)
-
-class WXDLLEXPORT BasicString
-{
-public:
-  // ctors & dtor
-  BasicString(const char *sz);
- ~BasicString();
-
-  // 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)
-  BasicString(const BasicString&);
-  BasicString& operator=(const BasicString&);
-
-  OLECHAR *m_wzBuf;     // actual string
-};
-
-// Convert variants
-static bool ConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant) ;
-static bool ConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant) ;
-
-// Convert string to Unicode
-static BSTR ConvertStringToOle(const wxString& str);
-
-// Convert string from BSTR to wxString
-static wxString ConvertStringFromOle(BSTR bStr);
-
-// Verifies will fail if the needed buffer size is too large
-#define MAX_TIME_BUFFER_SIZE    128         // matches that in timecore.cpp
-#define MIN_DATE                (-657434L)  // about year 100
-#define MAX_DATE                2958465L    // about year 9999
 
-// Half a second, expressed in days
-#define HALF_SECOND  (1.0/172800.0)
+#ifndef __WXWINCE__
+#include <ole2ver.h>
+#endif
 
-// One-based array of days in year at month start
-static int rgMonthDays[13] =
-       {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365};
+#include <oleauto.h>
 
-#if wxUSE_TIMEDATE
-static BOOL OleDateFromTm(WORD wYear, WORD wMonth, WORD wDay,
-       WORD wHour, WORD wMinute, WORD wSecond, DATE& dtDest);
-static BOOL TmFromOleDate(DATE dtSrc, struct tm& tmDest);
-#endif // wxUSE_TIMEDATE
+#if wxUSE_DATETIME
+#include "wx/datetime.h"
+#endif // wxUSE_DATETIME
 
 static void ClearVariant(VARIANTARG *pvarg) ;
 static void ReleaseVariant(VARIANTARG *pvarg) ;
@@ -101,16 +66,16 @@ static void ReleaseVariant(VARIANTARG *pvarg) ;
 
 wxAutomationObject::wxAutomationObject(WXIDISPATCH* dispatchPtr)
 {
-       m_dispatchPtr = dispatchPtr;
+    m_dispatchPtr = dispatchPtr;
 }
 
 wxAutomationObject::~wxAutomationObject()
 {
-       if (m_dispatchPtr)
-       {
-               ((IDispatch*)m_dispatchPtr)->Release();
-               m_dispatchPtr = NULL;
-       }
+    if (m_dispatchPtr)
+    {
+        ((IDispatch*)m_dispatchPtr)->Release();
+        m_dispatchPtr = NULL;
+    }
 }
 
 #define INVOKEARG(i) (args ? args[i] : *(ptrArgs[i]))
@@ -119,337 +84,344 @@ wxAutomationObject::~wxAutomationObject()
 bool wxAutomationObject::Invoke(const wxString& member, int action,
         wxVariant& retValue, int noArgs, wxVariant args[], const wxVariant* ptrArgs[]) const
 {
-       if (!m_dispatchPtr)
-               return FALSE;
-
-       // nonConstMember is necessary because the wxString class doesn't have enough consts...
-       wxString nonConstMember(member);
-
-       int ch = nonConstMember.Find('.');
-       if (ch != -1)
-       {
-               // Use dot notation to get the next object
-               wxString member2(nonConstMember.Left((size_t) ch));
-               wxString rest(nonConstMember.Right(nonConstMember.Length() - ch - 1));
-               wxAutomationObject obj;
-               if (!GetObject(obj, member2))
-                       return FALSE;
-               return obj.Invoke(rest, action, retValue, noArgs, args, ptrArgs);
-       }
-
-       VARIANTARG vReturn;
-       ClearVariant(& vReturn);
-
-       VARIANTARG* vReturnPtr = & vReturn;
-
-       // Find number of names args
-       int namedArgCount = 0;
-       int i;
-       for (i = 0; i < noArgs; i++)
-               if (!INVOKEARG(i).GetName().IsNull())
-               {
-                       namedArgCount ++;
-               }
-
-       int namedArgStringCount = namedArgCount + 1;
-       BSTR* argNames = new BSTR[namedArgStringCount];
-       argNames[0] = ConvertStringToOle(member);
-
-       // Note that arguments are specified in reverse order
-       // (all totally logical; hey, we're dealing with OLE here.)
-
-       int j = 0;
-       for (i = 0; i < namedArgCount; i++)
-       {       
-               if (!INVOKEARG(i).GetName().IsNull())
-               {
-                       argNames[(namedArgCount-j)] = ConvertStringToOle(INVOKEARG(i).GetName());
-                       j ++;
-               }
-       }
-
-       // + 1 for the member name, + 1 again in case we're a 'put'
-       DISPID* dispIds = new DISPID[namedArgCount + 2];
-
-       HRESULT hr;
-       DISPPARAMS dispparams;
-       unsigned int uiArgErr;
-       EXCEPINFO excep;
-       
-       // Get the IDs for the member and its arguments.  GetIDsOfNames expects the
-       // member name as the first name, followed by argument names (if any).
-       hr = ((IDispatch*)m_dispatchPtr)->GetIDsOfNames(IID_NULL, argNames,
-                                                               1 + namedArgCount, LOCALE_SYSTEM_DEFAULT, dispIds);
-       if (FAILED(hr)) 
-       {
-//             ShowException(szMember, hr, NULL, 0);
-               return FALSE;
-       }
-
-       // if doing a property put(ref), we need to adjust the first argument to have a
-       // named arg of DISPID_PROPERTYPUT.
-       if (action & (DISPATCH_PROPERTYPUT | DISPATCH_PROPERTYPUTREF))
-       {
-               namedArgCount = 1;
-               dispIds[1] = DISPID_PROPERTYPUT;
-               vReturnPtr = (VARIANTARG*) NULL;
-       }
-
-       // Convert the wxVariants to VARIANTARGs
-       VARIANTARG* oleArgs = new VARIANTARG[noArgs];
-       for (i = 0; i < noArgs; i++)
-       {
-               // Again, reverse args
-               if (!ConvertVariantToOle(INVOKEARG((noArgs-1) - i), oleArgs[i]))
-                       return FALSE; // TODO: clean up memory at this point
-       }
-
-       dispparams.rgdispidNamedArgs = dispIds + 1;
-       dispparams.rgvarg = oleArgs;
-       dispparams.cArgs = noArgs;
-       dispparams.cNamedArgs = namedArgCount;
-       
-       excep.pfnDeferredFillIn = NULL;
-       
-       hr = ((IDispatch*)m_dispatchPtr)->Invoke(dispIds[0], IID_NULL, LOCALE_SYSTEM_DEFAULT,
-                                               action, &dispparams, vReturnPtr, &excep, &uiArgErr);
-
-       for (i = 0; i < namedArgStringCount; i++)
-       {
-               SysFreeString(argNames[i]);
-       }
-       delete[] argNames;
-       delete[] dispIds;
-       
-       for (i = 0; i < noArgs; i++)
-               ReleaseVariant(& oleArgs[i]) ;
-       delete[] oleArgs;
-       
-       if (FAILED(hr)) 
-       {
-               // display the exception information if appropriate:
-//             ShowException((const char*) member, hr, &excep, uiArgErr);
-       
-               // free exception structure information
-               SysFreeString(excep.bstrSource);
-               SysFreeString(excep.bstrDescription);
-               SysFreeString(excep.bstrHelpFile);
-
-               if (vReturnPtr)
-                       ReleaseVariant(vReturnPtr);
-               return FALSE;
-       }
-       else
-       {
-               if (vReturnPtr)
-               {
-                       // Convert result to wxVariant form
-                       ConvertOleToVariant(vReturn, retValue);
-                       // Mustn't release the dispatch pointer
-                       if (vReturn.vt == VT_DISPATCH)
-                       {
-                               vReturn.pdispVal = (IDispatch*) NULL;
-                       }
-                       ReleaseVariant(& vReturn);
-               }
-       }
-       return TRUE;
+    if (!m_dispatchPtr)
+        return false;
+
+    // nonConstMember is necessary because the wxString class doesn't have enough consts...
+    wxString nonConstMember(member);
+
+    int ch = nonConstMember.Find('.');
+    if (ch != -1)
+    {
+        // Use dot notation to get the next object
+        wxString member2(nonConstMember.Left((size_t) ch));
+        wxString rest(nonConstMember.Right(nonConstMember.length() - ch - 1));
+        wxAutomationObject obj;
+        if (!GetObject(obj, member2))
+            return false;
+        return obj.Invoke(rest, action, retValue, noArgs, args, ptrArgs);
+    }
+
+    VARIANTARG vReturn;
+    ClearVariant(& vReturn);
+
+    VARIANTARG* vReturnPtr = & vReturn;
+
+    // Find number of names args
+    int namedArgCount = 0;
+    int i;
+    for (i = 0; i < noArgs; i++)
+        if (!INVOKEARG(i).GetName().IsNull())
+        {
+            namedArgCount ++;
+        }
+
+    int namedArgStringCount = namedArgCount + 1;
+    BSTR* argNames = new BSTR[namedArgStringCount];
+    argNames[0] = wxConvertStringToOle(member);
+
+    // Note that arguments are specified in reverse order
+    // (all totally logical; hey, we're dealing with OLE here.)
+
+    int j = 0;
+    for (i = 0; i < namedArgCount; i++)
+    {
+        if (!INVOKEARG(i).GetName().IsNull())
+        {
+            argNames[(namedArgCount-j)] = wxConvertStringToOle(INVOKEARG(i).GetName());
+            j ++;
+        }
+    }
+
+    // + 1 for the member name, + 1 again in case we're a 'put'
+    DISPID* dispIds = new DISPID[namedArgCount + 2];
+
+    HRESULT hr;
+    DISPPARAMS dispparams;
+    unsigned int uiArgErr;
+    EXCEPINFO excep;
+
+    // Get the IDs for the member and its arguments.  GetIDsOfNames expects the
+    // member name as the first name, followed by argument names (if any).
+    hr = ((IDispatch*)m_dispatchPtr)->GetIDsOfNames(IID_NULL, argNames,
+                                1 + namedArgCount, LOCALE_SYSTEM_DEFAULT, dispIds);
+    if (FAILED(hr))
+    {
+//        ShowException(szMember, hr, NULL, 0);
+        delete[] argNames;
+        delete[] dispIds;
+        return false;
+    }
+
+    // if doing a property put(ref), we need to adjust the first argument to have a
+    // named arg of DISPID_PROPERTYPUT.
+    if (action & (DISPATCH_PROPERTYPUT | DISPATCH_PROPERTYPUTREF))
+    {
+        namedArgCount = 1;
+        dispIds[1] = DISPID_PROPERTYPUT;
+        vReturnPtr = (VARIANTARG*) NULL;
+    }
+
+    // Convert the wxVariants to VARIANTARGs
+    VARIANTARG* oleArgs = new VARIANTARG[noArgs];
+    for (i = 0; i < noArgs; i++)
+    {
+        // Again, reverse args
+        if (!wxConvertVariantToOle(INVOKEARG((noArgs-1) - i), oleArgs[i]))
+        {
+            delete[] argNames;
+            delete[] dispIds;
+            delete[] oleArgs;
+            return false;
+        }
+    }
+
+    dispparams.rgdispidNamedArgs = dispIds + 1;
+    dispparams.rgvarg = oleArgs;
+    dispparams.cArgs = noArgs;
+    dispparams.cNamedArgs = namedArgCount;
+
+    excep.pfnDeferredFillIn = NULL;
+
+    hr = ((IDispatch*)m_dispatchPtr)->Invoke(dispIds[0], IID_NULL, LOCALE_SYSTEM_DEFAULT,
+                        (WORD)action, &dispparams, vReturnPtr, &excep, &uiArgErr);
+
+    for (i = 0; i < namedArgStringCount; i++)
+    {
+        SysFreeString(argNames[i]);
+    }
+    delete[] argNames;
+    delete[] dispIds;
+
+    for (i = 0; i < noArgs; i++)
+        ReleaseVariant(& oleArgs[i]) ;
+    delete[] oleArgs;
+
+    if (FAILED(hr))
+    {
+        // display the exception information if appropriate:
+//        ShowException((const char*) member, hr, &excep, uiArgErr);
+
+        // free exception structure information
+        SysFreeString(excep.bstrSource);
+        SysFreeString(excep.bstrDescription);
+        SysFreeString(excep.bstrHelpFile);
+
+        if (vReturnPtr)
+            ReleaseVariant(vReturnPtr);
+        return false;
+    }
+    else
+    {
+        if (vReturnPtr)
+        {
+            // Convert result to wxVariant form
+            wxConvertOleToVariant(vReturn, retValue);
+            // Mustn't release the dispatch pointer
+            if (vReturn.vt == VT_DISPATCH)
+            {
+                vReturn.pdispVal = (IDispatch*) NULL;
+            }
+            ReleaseVariant(& vReturn);
+        }
+    }
+    return true;
 }
 
 // Invoke a member function
 wxVariant wxAutomationObject::CallMethod(const wxString& member, int noArgs, wxVariant args[])
 {
-       wxVariant retVariant;
-       if (!Invoke(member, DISPATCH_METHOD, retVariant, noArgs, args))
-       {
-               retVariant.MakeNull();
-       }
-       return retVariant;
+    wxVariant retVariant;
+    if (!Invoke(member, DISPATCH_METHOD, retVariant, noArgs, args))
+    {
+        retVariant.MakeNull();
+    }
+    return retVariant;
 }
 
 wxVariant wxAutomationObject::CallMethodArray(const wxString& member, int noArgs, const wxVariant **args)
 {
-       wxVariant retVariant;
-       if (!Invoke(member, DISPATCH_METHOD, retVariant, noArgs, NULL, args))
-       {
-               retVariant.MakeNull();
-       }
-       return retVariant;
+    wxVariant retVariant;
+    if (!Invoke(member, DISPATCH_METHOD, retVariant, noArgs, NULL, args))
+    {
+        retVariant.MakeNull();
+    }
+    return retVariant;
 }
 
 wxVariant wxAutomationObject::CallMethod(const wxString& member,
-               const wxVariant& arg1, const wxVariant& arg2,
-               const wxVariant& arg3, const wxVariant& arg4,
-               const wxVariant& arg5, const wxVariant& arg6)
+        const wxVariant& arg1, const wxVariant& arg2,
+        const wxVariant& arg3, const wxVariant& arg4,
+        const wxVariant& arg5, const wxVariant& arg6)
 {
-       const wxVariant** args = new const wxVariant*[6];
-       int i = 0;
-       if (!arg1.IsNull())
-       {
-               args[i] = & arg1;
-               i ++;
-       }
-       if (!arg2.IsNull())
-       {
-               args[i] = & arg2;
-               i ++;
-       }
-       if (!arg3.IsNull())
-       {
-               args[i] = & arg3;
-               i ++;
-       }
-       if (!arg4.IsNull())
-       {
-               args[i] = & arg4;
-               i ++;
-       }
-       if (!arg5.IsNull())
-       {
-               args[i] = & arg5;
-               i ++;
-       }
-       if (!arg6.IsNull())
-       {
-               args[i] = & arg6;
-               i ++;
-       }
-       wxVariant retVariant;
-       if (!Invoke(member, DISPATCH_METHOD, retVariant, i, NULL, args))
-       {
-               retVariant.MakeNull();
-       }
-       delete[] args;
-       return retVariant;
+    const wxVariant** args = new const wxVariant*[6];
+    int i = 0;
+    if (!arg1.IsNull())
+    {
+        args[i] = & arg1;
+        i ++;
+    }
+    if (!arg2.IsNull())
+    {
+        args[i] = & arg2;
+        i ++;
+    }
+    if (!arg3.IsNull())
+    {
+        args[i] = & arg3;
+        i ++;
+    }
+    if (!arg4.IsNull())
+    {
+        args[i] = & arg4;
+        i ++;
+    }
+    if (!arg5.IsNull())
+    {
+        args[i] = & arg5;
+        i ++;
+    }
+    if (!arg6.IsNull())
+    {
+        args[i] = & arg6;
+        i ++;
+    }
+    wxVariant retVariant;
+    if (!Invoke(member, DISPATCH_METHOD, retVariant, i, NULL, args))
+    {
+        retVariant.MakeNull();
+    }
+    delete[] args;
+    return retVariant;
 }
 
 // Get/Set property
 wxVariant wxAutomationObject::GetPropertyArray(const wxString& property, int noArgs, const wxVariant **args) const
 {
-       wxVariant retVariant;
-       if (!Invoke(property, DISPATCH_PROPERTYGET, retVariant, noArgs, NULL, args))
-       {
-               retVariant.MakeNull();
-       }
-       return retVariant;
+    wxVariant retVariant;
+    if (!Invoke(property, DISPATCH_PROPERTYGET, retVariant, noArgs, NULL, args))
+    {
+        retVariant.MakeNull();
+    }
+    return retVariant;
 }
 wxVariant wxAutomationObject::GetProperty(const wxString& property, int noArgs, wxVariant args[]) const
 {
-       wxVariant retVariant;
-       if (!Invoke(property, DISPATCH_PROPERTYGET, retVariant, noArgs, args))
-       {
-               retVariant.MakeNull();
-       }
-       return retVariant;
+    wxVariant retVariant;
+    if (!Invoke(property, DISPATCH_PROPERTYGET, retVariant, noArgs, args))
+    {
+        retVariant.MakeNull();
+    }
+    return retVariant;
 }
 
 wxVariant wxAutomationObject::GetProperty(const wxString& property,
-               const wxVariant& arg1, const wxVariant& arg2,
-               const wxVariant& arg3, const wxVariant& arg4,
-               const wxVariant& arg5, const wxVariant& arg6)
+        const wxVariant& arg1, const wxVariant& arg2,
+        const wxVariant& arg3, const wxVariant& arg4,
+        const wxVariant& arg5, const wxVariant& arg6)
 {
-       const wxVariant** args = new const wxVariant*[6];
-       int i = 0;
-       if (!arg1.IsNull())
-       {
-               args[i] = & arg1;
-               i ++;
-       }
-       if (!arg2.IsNull())
-       {
-               args[i] = & arg2;
-               i ++;
-       }
-       if (!arg3.IsNull())
-       {
-               args[i] = & arg3;
-               i ++;
-       }
-       if (!arg4.IsNull())
-       {
-               args[i] = & arg4;
-               i ++;
-       }
-       if (!arg5.IsNull())
-       {
-               args[i] = & arg5;
-               i ++;
-       }
-       if (!arg6.IsNull())
-       {
-               args[i] = & arg6;
-               i ++;
-       }
-       wxVariant retVariant;
-       if (!Invoke(property, DISPATCH_PROPERTYGET, retVariant, i, NULL, args))
-       {
-               retVariant.MakeNull();
-       }
-       delete[] args;
-       return retVariant;
+    const wxVariant** args = new const wxVariant*[6];
+    int i = 0;
+    if (!arg1.IsNull())
+    {
+        args[i] = & arg1;
+        i ++;
+    }
+    if (!arg2.IsNull())
+    {
+        args[i] = & arg2;
+        i ++;
+    }
+    if (!arg3.IsNull())
+    {
+        args[i] = & arg3;
+        i ++;
+    }
+    if (!arg4.IsNull())
+    {
+        args[i] = & arg4;
+        i ++;
+    }
+    if (!arg5.IsNull())
+    {
+        args[i] = & arg5;
+        i ++;
+    }
+    if (!arg6.IsNull())
+    {
+        args[i] = & arg6;
+        i ++;
+    }
+    wxVariant retVariant;
+    if (!Invoke(property, DISPATCH_PROPERTYGET, retVariant, i, NULL, args))
+    {
+        retVariant.MakeNull();
+    }
+    delete[] args;
+    return retVariant;
 }
 
 bool wxAutomationObject::PutProperty(const wxString& property, int noArgs, wxVariant args[])
 {
-       wxVariant retVariant;
-       if (!Invoke(property, DISPATCH_PROPERTYPUT, retVariant, noArgs, args))
-       {
-               return FALSE;
-       }
-       return TRUE;
+    wxVariant retVariant;
+    if (!Invoke(property, DISPATCH_PROPERTYPUT, retVariant, noArgs, args))
+    {
+        return false;
+    }
+    return true;
 }
 
 bool wxAutomationObject::PutPropertyArray(const wxString& property, int noArgs, const wxVariant **args)
 {
-       wxVariant retVariant;
-       if (!Invoke(property, DISPATCH_PROPERTYPUT, retVariant, noArgs, NULL, args))
-       {
-               return FALSE;
-       }
-       return TRUE;
+    wxVariant retVariant;
+    if (!Invoke(property, DISPATCH_PROPERTYPUT, retVariant, noArgs, NULL, args))
+    {
+        return false;
+    }
+    return true;
 }
 
 bool wxAutomationObject::PutProperty(const wxString& property,
-               const wxVariant& arg1, const wxVariant& arg2,
-               const wxVariant& arg3, const wxVariant& arg4,
-               const wxVariant& arg5, const wxVariant& arg6)
+        const wxVariant& arg1, const wxVariant& arg2,
+        const wxVariant& arg3, const wxVariant& arg4,
+        const wxVariant& arg5, const wxVariant& arg6)
 {
-       const wxVariant** args = new const wxVariant*[6];
-       int i = 0;
-       if (!arg1.IsNull())
-       {
-               args[i] = & arg1;
-               i ++;
-       }
-       if (!arg2.IsNull())
-       {
-               args[i] = & arg2;
-               i ++;
-       }
-       if (!arg3.IsNull())
-       {
-               args[i] = & arg3;
-               i ++;
-       }
-       if (!arg4.IsNull())
-       {
-               args[i] = & arg4;
-               i ++;
-       }
-       if (!arg5.IsNull())
-       {
-               args[i] = & arg5;
-               i ++;
-       }
-       if (!arg6.IsNull())
-       {
-               args[i] = & arg6;
-               i ++;
-       }
-       wxVariant retVariant;
-       bool ret = Invoke(property, DISPATCH_PROPERTYPUT, retVariant, i, NULL, args);
-       delete[] args;
-       return ret;
+    const wxVariant** args = new const wxVariant*[6];
+    int i = 0;
+    if (!arg1.IsNull())
+    {
+        args[i] = & arg1;
+        i ++;
+    }
+    if (!arg2.IsNull())
+    {
+        args[i] = & arg2;
+        i ++;
+    }
+    if (!arg3.IsNull())
+    {
+        args[i] = & arg3;
+        i ++;
+    }
+    if (!arg4.IsNull())
+    {
+        args[i] = & arg4;
+        i ++;
+    }
+    if (!arg5.IsNull())
+    {
+        args[i] = & arg5;
+        i ++;
+    }
+    if (!arg6.IsNull())
+    {
+        args[i] = & arg6;
+        i ++;
+    }
+    wxVariant retVariant;
+    bool ret = Invoke(property, DISPATCH_PROPERTYPUT, retVariant, i, NULL, args);
+    delete[] args;
+    return ret;
 }
 
 
@@ -459,16 +431,16 @@ bool wxAutomationObject::PutProperty(const wxString& property,
 // with it and letting the destructor call Release.
 WXIDISPATCH* wxAutomationObject::GetDispatchProperty(const wxString& property, int noArgs, wxVariant args[]) const
 {
-       wxVariant retVariant;
-       if (Invoke(property, DISPATCH_PROPERTYGET, retVariant, noArgs, args))
-       {
-               if (retVariant.GetType() == wxT("void*"))
-               {
-                       return (WXIDISPATCH*) retVariant.GetVoidPtr();
-               }
-       }
-
-       return (WXIDISPATCH*) NULL;
+    wxVariant retVariant;
+    if (Invoke(property, DISPATCH_PROPERTYGET, retVariant, noArgs, args))
+    {
+        if (retVariant.GetType() == wxT("void*"))
+        {
+            return (WXIDISPATCH*) retVariant.GetVoidPtr();
+        }
+    }
+
+    return (WXIDISPATCH*) NULL;
 }
 
 // Uses DISPATCH_PROPERTYGET
@@ -477,114 +449,114 @@ WXIDISPATCH* wxAutomationObject::GetDispatchProperty(const wxString& property, i
 // with it and letting the destructor call Release.
 WXIDISPATCH* wxAutomationObject::GetDispatchProperty(const wxString& property, int noArgs, const wxVariant **args) const
 {
-       wxVariant retVariant;
-       if (Invoke(property, DISPATCH_PROPERTYGET, retVariant, noArgs, NULL, args))
-       {
-               if (retVariant.GetType() == wxT("void*"))
-               {
-                       return (WXIDISPATCH*) retVariant.GetVoidPtr();
-               }
-       }
-
-       return (WXIDISPATCH*) NULL;
+    wxVariant retVariant;
+    if (Invoke(property, DISPATCH_PROPERTYGET, retVariant, noArgs, NULL, args))
+    {
+        if (retVariant.GetType() == wxT("void*"))
+        {
+            return (WXIDISPATCH*) retVariant.GetVoidPtr();
+        }
+    }
+
+    return (WXIDISPATCH*) NULL;
 }
 
 
 // A way of initialising another wxAutomationObject with a dispatch object
 bool wxAutomationObject::GetObject(wxAutomationObject& obj, const wxString& property, int noArgs, wxVariant args[]) const
 {
-       WXIDISPATCH* dispatch = GetDispatchProperty(property, noArgs, args);
-       if (dispatch)
-       {
-               obj.SetDispatchPtr(dispatch);
-               return TRUE;
-       }
-       else
-               return FALSE;
+    WXIDISPATCH* dispatch = GetDispatchProperty(property, noArgs, args);
+    if (dispatch)
+    {
+        obj.SetDispatchPtr(dispatch);
+        return true;
+    }
+    else
+        return false;
 }
 
 // A way of initialising another wxAutomationObject with a dispatch object
 bool wxAutomationObject::GetObject(wxAutomationObject& obj, const wxString& property, int noArgs, const wxVariant **args) const
 {
-       WXIDISPATCH* dispatch = GetDispatchProperty(property, noArgs, args);
-       if (dispatch)
-       {
-               obj.SetDispatchPtr(dispatch);
-               return TRUE;
-       }
-       else
-               return FALSE;
+    WXIDISPATCH* dispatch = GetDispatchProperty(property, noArgs, args);
+    if (dispatch)
+    {
+        obj.SetDispatchPtr(dispatch);
+        return true;
+    }
+    else
+        return false;
 }
 
 // Get a dispatch pointer from the current object associated
 // with a class id
 bool wxAutomationObject::GetInstance(const wxString& classId) const
 {
-       if (m_dispatchPtr)
-               return FALSE;
-
-       CLSID clsId;
-       IUnknown * pUnk = NULL;
-
-       BasicString unicodeName(classId.mb_str());
-       
-       if (FAILED(CLSIDFromProgID((BSTR) unicodeName, &clsId))) 
-       {
-               wxLogWarning(wxT("Cannot obtain CLSID from ProgID"));
-               return FALSE;
-       }
-
-       if (FAILED(GetActiveObject(clsId, NULL, &pUnk)))
-       {
-               wxLogWarning(wxT("Cannot find an active object"));
-               return FALSE;
-       }
-       
-       if (pUnk->QueryInterface(IID_IDispatch, (LPVOID*) &m_dispatchPtr) != S_OK)
-       {
-               wxLogWarning(wxT("Cannot find IDispatch interface"));
-               return FALSE;
-       }
-
-       return TRUE;
+    if (m_dispatchPtr)
+        return false;
+
+    CLSID clsId;
+    IUnknown * pUnk = NULL;
+
+    wxBasicString unicodeName(classId);
+
+    if (FAILED(CLSIDFromProgID((BSTR) unicodeName, &clsId)))
+    {
+        wxLogWarning(wxT("Cannot obtain CLSID from ProgID"));
+        return false;
+    }
+
+    if (FAILED(GetActiveObject(clsId, NULL, &pUnk)))
+    {
+        wxLogWarning(wxT("Cannot find an active object"));
+        return false;
+    }
+
+    if (pUnk->QueryInterface(IID_IDispatch, (LPVOID*) &m_dispatchPtr) != S_OK)
+    {
+        wxLogWarning(wxT("Cannot find IDispatch interface"));
+        return false;
+    }
+
+    return true;
 }
 
 // Get a dispatch pointer from a new object associated
 // with the given class id
 bool wxAutomationObject::CreateInstance(const wxString& classId) const
 {
-       if (m_dispatchPtr)
-               return FALSE;
-
-       CLSID clsId;
-
-       BasicString unicodeName(classId.mb_str());
-       
-       if (FAILED(CLSIDFromProgID((BSTR) unicodeName, &clsId))) 
-       {
-               wxLogWarning(wxT("Cannot obtain CLSID from ProgID"));
-               return FALSE;
-       }
-
-       // start a new copy of Excel, grab the IDispatch interface
-       if (FAILED(CoCreateInstance(clsId, NULL, CLSCTX_LOCAL_SERVER, IID_IDispatch, (void**)&m_dispatchPtr))) 
-       {
-               wxLogWarning(wxT("Cannot start an instance of this class."));
-               return FALSE;
-       }
-       
-       return TRUE;
+    if (m_dispatchPtr)
+        return false;
+
+    CLSID clsId;
+
+    wxBasicString unicodeName(classId);
+
+    if (FAILED(CLSIDFromProgID((BSTR) unicodeName, &clsId)))
+    {
+        wxLogWarning(wxT("Cannot obtain CLSID from ProgID"));
+        return false;
+    }
+
+    // start a new copy of Excel, grab the IDispatch interface
+    if (FAILED(CoCreateInstance(clsId, NULL, CLSCTX_LOCAL_SERVER, IID_IDispatch, (void**)&m_dispatchPtr)))
+    {
+        wxLogWarning(wxT("Cannot start an instance of this class."));
+        return false;
+    }
+
+    return true;
 }
 
 
-bool ConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant)
+WXDLLEXPORT bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant)
 {
-       ClearVariant(&oleVariant);
-       if (variant.IsNull())
-       {
-               oleVariant.vt = VT_NULL;
-               return TRUE;
-       }
+    ClearVariant(&oleVariant);
+    if (variant.IsNull())
+    {
+        oleVariant.vt = VT_NULL;
+        return true;
+    }
 
     wxString type(variant.GetType());
 
@@ -598,7 +570,7 @@ bool ConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant)
 #ifndef __GNUWIN32__
     else if (type == wxT("char"))
     {
-        oleVariant.vt=VT_I1;                   // Signed Char
+        oleVariant.vt=VT_I1;            // Signed Char
         oleVariant.cVal=variant.GetChar();
     }
 #endif
@@ -611,7 +583,7 @@ bool ConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant)
     {
         oleVariant.vt = VT_BOOL;
         // 'bool' required for VC++ 4 apparently
-#if defined(__WATCOMC__) || (defined(__VISUALC__) && (__VISUALC__ <= 1000))
+#if (defined(__VISUALC__) && (__VISUALC__ <= 1000))
         oleVariant.bool = variant.GetBool();
 #else
         oleVariant.boolVal = variant.GetBool();
@@ -621,27 +593,19 @@ bool ConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant)
     {
         wxString str( variant.GetString() );
         oleVariant.vt = VT_BSTR;
-        oleVariant.bstrVal = ConvertStringToOle(str);
+        oleVariant.bstrVal = wxConvertStringToOle(str);
     }
-// For some reason, Watcom C++ can't link variant.cpp with time/date classes compiled
-#if wxUSE_TIMEDATE && !defined(__WATCOMC__)
-    else if (type == wxT("date"))
+#if wxUSE_DATETIME
+    else if (type == wxT("datetime"))
     {
-        wxDate date( variant.GetDate() );
+        wxDateTime date( variant.GetDateTime() );
         oleVariant.vt = VT_DATE;
 
-               if (!OleDateFromTm(date.GetYear(), date.GetMonth(), date.GetDay(),
-                               0, 0, 0, oleVariant.date))
-                       return FALSE;
-    }
-    else if (type == wxT("time"))
-    {
-        wxTime time( variant.GetTime() );
-        oleVariant.vt = VT_DATE;
+        long dosDateTime = date.GetAsDOS();
+        short dosDate = short((dosDateTime & 0xFFFF0000) >> 16);
+        short dosTime = short(dosDateTime & 0xFFFF);
 
-               if (!OleDateFromTm(time.GetYear(), time.GetMonth(), time.GetDay(),
-                       time.GetHour(), time.GetMinute(), time.GetSecond(), oleVariant.date))
-                       return FALSE;
+        DosDateTimeToVariantTime(dosDate, dosTime, & oleVariant.date);
     }
 #endif
     else if (type == wxT("void*"))
@@ -653,442 +617,193 @@ bool ConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant)
     {
         oleVariant.vt = VT_VARIANT | VT_ARRAY;
 
-           SAFEARRAY *psa;
-           SAFEARRAYBOUND saBound;
-           VARIANTARG *pvargBase;
-           VARIANTARG *pvarg;
-           int i, j;
+        SAFEARRAY *psa;
+        SAFEARRAYBOUND saBound;
+        VARIANTARG *pvargBase;
+        VARIANTARG *pvarg;
+        int i, j;
 
         int iCount = variant.GetCount();
-       
-           saBound.lLbound = 0;
-           saBound.cElements = iCount;
-       
-           psa = SafeArrayCreate(VT_VARIANT, 1, &saBound);
-           if (psa == NULL)
-                   return FALSE;
-       
-           SafeArrayAccessData(psa, (void**)&pvargBase);
-       
-           pvarg = pvargBase;
-           for (i = 0; i < iCount; i++)
-           {
-                   // copy each string in the list of strings
+
+        saBound.lLbound = 0;
+        saBound.cElements = iCount;
+
+        psa = SafeArrayCreate(VT_VARIANT, 1, &saBound);
+        if (psa == NULL)
+            return false;
+
+        SafeArrayAccessData(psa, (void**)&pvargBase);
+
+        pvarg = pvargBase;
+        for (i = 0; i < iCount; i++)
+        {
+            // copy each string in the list of strings
             wxVariant eachVariant(variant[i]);
-            if (!ConvertVariantToOle(eachVariant, * pvarg))
+            if (!wxConvertVariantToOle(eachVariant, * pvarg))
             {
-                           // memory failure:  back out and free strings alloc'ed up to
-                           // now, and then the array itself.
-                           pvarg = pvargBase;
-                           for (j = 0; j < i; j++)
-                           {
-                                   SysFreeString(pvarg->bstrVal);
-                                   pvarg++;
-                           }
-                           SafeArrayDestroy(psa);
-                           return FALSE;
-                   }
-                   pvarg++;
-           }
-       
-           SafeArrayUnaccessData(psa);
+                // memory failure:  back out and free strings alloc'ed up to
+                // now, and then the array itself.
+                pvarg = pvargBase;
+                for (j = 0; j < i; j++)
+                {
+                    SysFreeString(pvarg->bstrVal);
+                    pvarg++;
+                }
+                SafeArrayDestroy(psa);
+                return false;
+            }
+            pvarg++;
+        }
+
+        SafeArrayUnaccessData(psa);
 
         oleVariant.parray = psa;
     }
     else
     {
         oleVariant.vt = VT_NULL;
-        return FALSE;
+        return false;
     }
-    return TRUE;
+    return true;
 }
 
 #ifndef VT_TYPEMASK
 #define VT_TYPEMASK 0xfff
 #endif
 
-bool ConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant)
+WXDLLEXPORT bool
+wxConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant)
 {
-       switch (oleVariant.vt & VT_TYPEMASK)
-       {
-       case VT_BSTR:
-               {
-                       wxString str(ConvertStringFromOle(oleVariant.bstrVal));
-                       variant = str;
-                       break;
-               }
-       case VT_DATE:
-               {
-#if wxUSE_TIMEDATE
-            struct tm tmTemp;
-                       if (!TmFromOleDate(oleVariant.date, tmTemp))
-                               return FALSE;
-
-                       wxDate date(tmTemp.tm_yday, tmTemp.tm_mon, tmTemp.tm_year);
-                       wxTime time(date, tmTemp.tm_hour, tmTemp.tm_min, tmTemp.tm_sec);
-
-                       variant = time;
-#endif
+    bool ok = true;
+    if ( oleVariant.vt & VT_ARRAY )
+    {
+        variant.ClearList();
+
+        // Compute the total number of elements in all array dimensions
+        int cElements = 1;
+        for ( int cDims = 0; cDims < oleVariant.parray->cDims; cDims++ )
+            cElements *= oleVariant.parray->rgsabound[cDims].cElements;
+
+        // Get a pointer to the data
+        VARIANTARG* pvdata;
+        HRESULT hr = SafeArrayAccessData(oleVariant.parray, (void **)&pvdata);
+        if ( FAILED(hr) )
+            return false;
+
+        for ( int i = 0; i < cElements; i++ )
+        {
+            VARIANTARG& oleElement = pvdata[i];
+            wxVariant vElement;
+            if ( !wxConvertOleToVariant(oleElement, vElement) )
+            {
+                ok = false;
+                variant.ClearList();
+                break;
+            }
 
-            break;
-               }
-       case VT_I4:
-               {
-                       variant = (long) oleVariant.lVal;
-                       break;
-               }
-       case VT_I2:
-               {
-                       variant = (long) oleVariant.iVal;
-                       break;
-               }
-
-       case VT_BOOL:
-               {
-#if defined(__WATCOMC__) || (defined(_MSC_VER) && (_MSC_VER <= 1000) && !defined(__MWERKS__) ) //GC
+            variant.Append(vElement);
+        }
+
+        SafeArrayUnaccessData(oleVariant.parray);
+    }
+    else if ( oleVariant.vt & VT_BYREF )
+    {
+        switch ( oleVariant.vt & VT_TYPEMASK )
+        {
+            case VT_VARIANT:
+                {
+                    VARIANTARG& oleReference = *((LPVARIANT)oleVariant.byref);
+                    if (!wxConvertOleToVariant(oleReference,variant))
+                        return false;
+                    break;
+                }
+
+            default:
+                wxLogError(wxT("wxAutomationObject::ConvertOleToVariant: [as yet] unhandled reference %X"),oleVariant.vt);
+                return false;
+        }
+    }
+    else // simply type (not array or reference)
+    {
+        switch (oleVariant.vt & VT_TYPEMASK)
+        {
+            case VT_BSTR:
+                {
+                    wxString str(wxConvertStringFromOle(oleVariant.bstrVal));
+                    variant = str;
+                    break;
+                }
+            case VT_DATE:
+                {
+#if wxUSE_DATETIME
+                    unsigned short dosDate = 0;
+                    unsigned short dosTime = 0;
+                    VariantTimeToDosDateTime(oleVariant.date, & dosDate, & dosTime);
+
+                    long dosDateTime = (dosDate << 16) | dosTime;
+                    wxDateTime date;
+                    date.SetFromDOS(dosDateTime);
+                    variant = date;
+#endif
+                    break;
+                }
+            case VT_I4:
+                {
+                    variant = (long) oleVariant.lVal;
+                    break;
+                }
+            case VT_I2:
+                {
+                    variant = (long) oleVariant.iVal;
+                    break;
+                }
+
+            case VT_BOOL:
+                {
+#if (defined(_MSC_VER) && (_MSC_VER <= 1000) && !defined(__MWERKS__) ) //GC
 #ifndef HAVE_BOOL // Can't use bool operator if no native bool type
-                       variant = (long) (oleVariant.bool != 0);
+                    variant = (long) (oleVariant.bool != 0);
 #else
-                       variant = (bool) (oleVariant.bool != 0);
+                    variant = (bool) (oleVariant.bool != 0);
 #endif
 #else
 #ifndef HAVE_BOOL // Can't use bool operator if no native bool type
-                       variant = (long) (oleVariant.boolVal != 0);
+                    variant = (long) (oleVariant.boolVal != 0);
 #else
-                       variant = (bool) (oleVariant.boolVal != 0);
+                    variant = (bool) (oleVariant.boolVal != 0);
 #endif
 #endif
-                       break;
-               }
-       case VT_R8:
-               {
-                       variant = oleVariant.dblVal;
-                       break;
-               }
-       case VT_ARRAY:
-               {
-                       variant.ClearList();
-
-                       int cDims, cElements, i;
-                       VARIANTARG* pvdata;
-
-                       // Iterate the dimensions: number of elements is x*y*z
-                       for (cDims = 0, cElements = 1;
-                               cDims < oleVariant.parray->cDims; cDims ++)
-                                       cElements *= oleVariant.parray->rgsabound[cDims].cElements;
-
-                       // Get a pointer to the data
-                       HRESULT hr = SafeArrayAccessData(oleVariant.parray, (void HUGEP* FAR*) & pvdata);
-                       if (hr != NOERROR)
-                               return FALSE;
-                       // Iterate the data.
-                       for (i = 0; i < cElements; i++)
-                       {
-                               VARIANTARG& oleElement = pvdata[i];
-                               wxVariant vElement;
-                               if (!ConvertOleToVariant(oleElement, vElement))
-                                       return FALSE;
-                               
-                               variant.Append(vElement);
-                       }
-                       SafeArrayUnaccessData(oleVariant.parray);
-                       break;
-               }
-       case VT_DISPATCH:
-               {
-                       variant = (void*) oleVariant.pdispVal;
-                       break;
-               }
-       case VT_NULL:
-               {
-                       variant.MakeNull();
-                       break;
-               }
-       case VT_EMPTY:
-               {
-                       break;  // Ignore Empty Variant, used only during destruction of objects
-               }
-       default:
-               {
-                       wxLogError(wxT("wxAutomationObject::ConvertOleToVariant: Unknown variant value type"));
-                       return FALSE;
-               }
-       }
-    return TRUE;
-}
-
-static BSTR ConvertStringToOle(const wxString& str)
-{
-/*
-       unsigned int len = strlen((const char*) str);
-       unsigned short* s = new unsigned short[len*2+2];
-       unsigned int i;
-       memset(s, 0, len*2+2);
-       for (i=0; i < len; i++)
-               s[i*2] = str[i];
-*/
-       BasicString bstr(str.mb_str());
-       return bstr.Get();
-}
-
-static wxString ConvertStringFromOle(BSTR bStr)
-{
-#if wxUSE_UNICODE
-    wxString str(bStr);
-#else
-       int len = SysStringLen(bStr) + 1;
-       char    *buf = new char[len];
-       (void)wcstombs( buf, bStr, len);
-       wxString str(buf); 
-       delete[] buf;
-#endif
-       return str;
-}
-
-// ----------------------------------------------------------------------------
-// BasicString
-// ----------------------------------------------------------------------------
-
-// ctor takes an ANSI string and transforms it to Unicode
-BasicString::BasicString(const char *sz)
-{
-  // get the size of required buffer
-  UINT lenAnsi = strlen(sz);
-  #ifdef __MWERKS__
-  UINT lenWide = lenAnsi * 2 ;
-  #else
-  UINT lenWide = mbstowcs(NULL, sz, lenAnsi);
-  #endif
-
-  if ( lenWide > 0 ) {
-    m_wzBuf = new OLECHAR[lenWide + 1];
-    mbstowcs(m_wzBuf, sz, lenAnsi);
-    m_wzBuf[lenWide] = L'\0';
-  }
-  else {
-    m_wzBuf = NULL;
-  }
-}
-
-// dtor frees memory
-BasicString::~BasicString()
-{
-  delete [] m_wzBuf;
-}
-
-/////////////////////////////////////////////////////////////////////////////
-// COleDateTime class HELPERS - implementation
-
-BOOL OleDateFromTm(WORD wYear, WORD wMonth, WORD wDay,
-       WORD wHour, WORD wMinute, WORD wSecond, DATE& dtDest)
-{
-       // Validate year and month (ignore day of week and milliseconds)
-       if (wYear > 9999 || wMonth < 1 || wMonth > 12)
-               return FALSE;
-
-       //  Check for leap year and set the number of days in the month
-       BOOL bLeapYear = ((wYear & 3) == 0) &&
-               ((wYear % 100) != 0 || (wYear % 400) == 0);
-
-       int nDaysInMonth =
-               rgMonthDays[wMonth] - rgMonthDays[wMonth-1] +
-               ((bLeapYear && wDay == 29 && wMonth == 2) ? 1 : 0);
-
-       // Finish validating the date
-       if (wDay < 1 || wDay > nDaysInMonth ||
-               wHour > 23 || wMinute > 59 ||
-               wSecond > 59)
-       {
-               return FALSE;
-       }
-
-       // Cache the date in days and time in fractional days
-       long nDate;
-       double dblTime;
-
-       //It is a valid date; make Jan 1, 1AD be 1
-       nDate = wYear*365L + wYear/4 - wYear/100 + wYear/400 +
-               rgMonthDays[wMonth-1] + wDay;
-
-       //  If leap year and it's before March, subtract 1:
-       if (wMonth <= 2 && bLeapYear)
-               --nDate;
-
-       //  Offset so that 12/30/1899 is 0
-       nDate -= 693959L;
-
-       dblTime = (((long)wHour * 3600L) +  // hrs in seconds
-               ((long)wMinute * 60L) +  // mins in seconds
-               ((long)wSecond)) / 86400.;
-
-       dtDest = (double) nDate + ((nDate >= 0) ? dblTime : -dblTime);
-
-       return TRUE;
-}
-
-BOOL TmFromOleDate(DATE dtSrc, struct tm& tmDest)
-{
-       // The legal range does not actually span year 0 to 9999.
-       if (dtSrc > MAX_DATE || dtSrc < MIN_DATE) // about year 100 to about 9999
-               return FALSE;
-
-       long nDays;             // Number of days since Dec. 30, 1899
-       long nDaysAbsolute;     // Number of days since 1/1/0
-       long nSecsInDay;        // Time in seconds since midnight
-       long nMinutesInDay;     // Minutes in day
-
-       long n400Years;         // Number of 400 year increments since 1/1/0
-       long n400Century;       // Century within 400 year block (0,1,2 or 3)
-       long n4Years;           // Number of 4 year increments since 1/1/0
-       long n4Day;             // Day within 4 year block
-                                                       //  (0 is 1/1/yr1, 1460 is 12/31/yr4)
-       long n4Yr;              // Year within 4 year block (0,1,2 or 3)
-       BOOL bLeap4 = TRUE;     // TRUE if 4 year block includes leap year
-
-       double dblDate = dtSrc; // tempory serial date
-
-       // If a valid date, then this conversion should not overflow
-       nDays = (long)dblDate;
-
-       // Round to the second
-       dblDate += ((dtSrc > 0.0) ? HALF_SECOND : -HALF_SECOND);
-
-       nDaysAbsolute = (long)dblDate + 693959L; // Add days from 1/1/0 to 12/30/1899
-
-       dblDate = fabs(dblDate);
-       nSecsInDay = (long)((dblDate - floor(dblDate)) * 86400.);
-
-       // Calculate the day of week (sun=1, mon=2...)
-       //   -1 because 1/1/0 is Sat.  +1 because we want 1-based
-       tmDest.tm_wday = (int)((nDaysAbsolute - 1) % 7L) + 1;
-
-       // Leap years every 4 yrs except centuries not multiples of 400.
-       n400Years = (long)(nDaysAbsolute / 146097L);
-
-       // Set nDaysAbsolute to day within 400-year block
-       nDaysAbsolute %= 146097L;
-
-       // -1 because first century has extra day
-       n400Century = (long)((nDaysAbsolute - 1) / 36524L);
-
-       // Non-leap century
-       if (n400Century != 0)
-       {
-               // Set nDaysAbsolute to day within century
-               nDaysAbsolute = (nDaysAbsolute - 1) % 36524L;
-
-               // +1 because 1st 4 year increment has 1460 days
-               n4Years = (long)((nDaysAbsolute + 1) / 1461L);
-
-               if (n4Years != 0)
-                       n4Day = (long)((nDaysAbsolute + 1) % 1461L);
-               else
-               {
-                       bLeap4 = FALSE;
-                       n4Day = (long)nDaysAbsolute;
-               }
-       }
-       else
-       {
-               // Leap century - not special case!
-               n4Years = (long)(nDaysAbsolute / 1461L);
-               n4Day = (long)(nDaysAbsolute % 1461L);
-       }
-
-       if (bLeap4)
-       {
-               // -1 because first year has 366 days
-               n4Yr = (n4Day - 1) / 365;
-
-               if (n4Yr != 0)
-                       n4Day = (n4Day - 1) % 365;
-       }
-       else
-       {
-               n4Yr = n4Day / 365;
-               n4Day %= 365;
-       }
-
-       // n4Day is now 0-based day of year. Save 1-based day of year, year number
-       tmDest.tm_yday = (int)n4Day + 1;
-       tmDest.tm_year = n400Years * 400 + n400Century * 100 + n4Years * 4 + n4Yr;
-
-       // Handle leap year: before, on, and after Feb. 29.
-       if (n4Yr == 0 && bLeap4)
-       {
-               // Leap Year
-               if (n4Day == 59)
-               {
-                       /* Feb. 29 */
-                       tmDest.tm_mon = 2;
-                       tmDest.tm_mday = 29;
-                       goto DoTime;
-               }
-
-               // Pretend it's not a leap year for month/day comp.
-               if (n4Day >= 60)
-                       --n4Day;
-       }
-
-       // Make n4DaY a 1-based day of non-leap year and compute
-       //  month/day for everything but Feb. 29.
-       ++n4Day;
-
-       // Month number always >= n/32, so save some loop time */
-       for (tmDest.tm_mon = (n4Day >> 5) + 1;
-               n4Day > rgMonthDays[tmDest.tm_mon]; tmDest.tm_mon++);
-
-       tmDest.tm_mday = (int)(n4Day - rgMonthDays[tmDest.tm_mon-1]);
-
-DoTime:
-       if (nSecsInDay == 0)
-               tmDest.tm_hour = tmDest.tm_min = tmDest.tm_sec = 0;
-       else
-       {
-               tmDest.tm_sec = (int)nSecsInDay % 60L;
-               nMinutesInDay = nSecsInDay / 60L;
-               tmDest.tm_min = (int)nMinutesInDay % 60;
-               tmDest.tm_hour = (int)nMinutesInDay / 60;
-       }
-
-       return TRUE;
-}
-
-// this function is not used
-#if 0
-void TmConvertToStandardFormat(struct tm& tmSrc)
-{
-       // Convert afx internal tm to format expected by runtimes (_tcsftime, etc)
-       tmSrc.tm_year -= 1900;  // year is based on 1900
-       tmSrc.tm_mon -= 1;      // month of year is 0-based
-       tmSrc.tm_wday -= 1;     // day of week is 0-based
-       tmSrc.tm_yday -= 1;     // day of year is 0-based
-}
-
-double DoubleFromDate(DATE dt)
-{
-       // No problem if positive
-       if (dt >= 0)
-               return dt;
-
-       // If negative, must convert since negative dates not continuous
-       // (examples: -1.25 to -.75, -1.50 to -.50, -1.75 to -.25)
-       double temp = ceil(dt);
-       return temp - (dt - temp);
-}
+                    break;
+                }
+            case VT_R8:
+                {
+                    variant = oleVariant.dblVal;
+                    break;
+                }
+            case VT_DISPATCH:
+                {
+                    variant = (void*) oleVariant.pdispVal;
+                    break;
+                }
+            case VT_NULL:
+                {
+                    variant.MakeNull();
+                    break;
+                }
+            case VT_EMPTY:
+                {
+                    break;    // Ignore Empty Variant, used only during destruction of objects
+                }
+            default:
+                {
+                    wxLogError(wxT("wxAutomationObject::ConvertOleToVariant: Unknown variant value type %X -> %X"),oleVariant.vt,oleVariant.vt&VT_TYPEMASK);
+                    return false;
+                }
+        }
+    }
 
-DATE DateFromDouble(double dbl)
-{
-       // No problem if positive
-       if (dbl >= 0)
-               return dbl;
-
-       // If negative, must convert since negative dates not continuous
-       // (examples: -.75 to -1.25, -.50 to -1.50, -.25 to -1.75)
-       double temp = floor(dbl); // dbl is now whole part
-       return temp + (temp - dbl);
+    return ok;
 }
-#endif // 0
 
 /*
  *  ClearVariant
@@ -1097,11 +812,11 @@ DATE DateFromDouble(double dbl)
  */
 static void ClearVariant(VARIANTARG *pvarg)
 {
-       pvarg->vt = VT_EMPTY;
-       pvarg->wReserved1 = 0;
-       pvarg->wReserved2 = 0;
-       pvarg->wReserved3 = 0;
-       pvarg->lVal = 0;
+    pvarg->vt = VT_EMPTY;
+    pvarg->wReserved1 = 0;
+    pvarg->wReserved2 = 0;
+    pvarg->wReserved3 = 0;
+    pvarg->lVal = 0;
 }
 
 /*
@@ -1112,137 +827,139 @@ static void ClearVariant(VARIANTARG *pvarg)
  */
 static void ReleaseVariant(VARIANTARG *pvarg)
 {
-       VARTYPE vt;
-       VARIANTARG _huge *pvargArray;
-       long lLBound, lUBound, l;
-       
-       vt = pvarg->vt & 0xfff;         // mask off flags
-       
-       // check if an array.  If so, free its contents, then the array itself.
-       if (V_ISARRAY(pvarg)) 
-       {
-               // variant arrays are all this routine currently knows about.  Since a
-               // variant can contain anything (even other arrays), call ourselves
-               // recursively.
-               if (vt == VT_VARIANT) 
-               {
-                       SafeArrayGetLBound(pvarg->parray, 1, &lLBound);
-                       SafeArrayGetUBound(pvarg->parray, 1, &lUBound);
-                       
-                       if (lUBound > lLBound) 
-                       {
-                               lUBound -= lLBound;
-                               
-                               SafeArrayAccessData(pvarg->parray, (void**)&pvargArray);
-                               
-                               for (l = 0; l < lUBound; l++) 
-                               {
-                                       ReleaseVariant(pvargArray);
-                                       pvargArray++;
-                               }
-                               
-                               SafeArrayUnaccessData(pvarg->parray);
-                       }
-               }
-               else 
-               {
-                       wxLogWarning(wxT("ReleaseVariant: Array contains non-variant type"));
-               }
-               
-               // Free the array itself.
-               SafeArrayDestroy(pvarg->parray);
-       }
-       else 
-       {
-               switch (vt) 
-               {
-                       case VT_DISPATCH:
-                               if (pvarg->pdispVal)
-                                       pvarg->pdispVal->Release();
-                               break;
-                               
-                       case VT_BSTR:
-                               SysFreeString(pvarg->bstrVal);
-                               break;
-                               
-                       case VT_I2:
-                       case VT_BOOL:
-                       case VT_R8:
-                       case VT_ERROR:          // to avoid erroring on an error return from Excel
-                               // no work for these types
-                               break;
-                               
-                       default:
-                               wxLogWarning(wxT("ReleaseVariant: Unknown type"));
-                               break;
-               }
-       }
-       
-       ClearVariant(pvarg);
+    VARTYPE vt;
+    VARIANTARG _huge *pvargArray;
+    LONG lLBound, lUBound, l;
+
+    vt = (VARTYPE)(pvarg->vt & 0xfff);        // mask off flags
+
+    // check if an array.  If so, free its contents, then the array itself.
+    if (V_ISARRAY(pvarg))
+    {
+        // variant arrays are all this routine currently knows about.  Since a
+        // variant can contain anything (even other arrays), call ourselves
+        // recursively.
+        if (vt == VT_VARIANT)
+        {
+            SafeArrayGetLBound(pvarg->parray, 1, &lLBound);
+            SafeArrayGetUBound(pvarg->parray, 1, &lUBound);
+
+            if (lUBound > lLBound)
+            {
+                lUBound -= lLBound;
+
+                SafeArrayAccessData(pvarg->parray, (void**)&pvargArray);
+
+                for (l = 0; l < lUBound; l++)
+                {
+                    ReleaseVariant(pvargArray);
+                    pvargArray++;
+                }
+
+                SafeArrayUnaccessData(pvarg->parray);
+            }
+        }
+        else
+        {
+            wxLogWarning(wxT("ReleaseVariant: Array contains non-variant type"));
+        }
+
+        // Free the array itself.
+        SafeArrayDestroy(pvarg->parray);
+    }
+    else
+    {
+        switch (vt)
+        {
+            case VT_DISPATCH:
+                if (pvarg->pdispVal)
+                    pvarg->pdispVal->Release();
+                break;
+
+            case VT_BSTR:
+                SysFreeString(pvarg->bstrVal);
+                break;
+
+            case VT_I2:
+            case VT_I4:
+            case VT_BOOL:
+            case VT_R8:
+            case VT_ERROR:        // to avoid erroring on an error return from Excel
+            case VT_EMPTY:
+            case VT_DATE:
+                // no work for these types
+                break;
+
+            default:
+                wxLogWarning(wxT("ReleaseVariant: Unknown type"));
+                break;
+        }
+    }
+
+    ClearVariant(pvarg);
 }
 
 #if 0
 
 void ShowException(LPOLESTR szMember, HRESULT hr, EXCEPINFO *pexcep, unsigned int uiArgErr)
 {
-       TCHAR szBuf[512];
-       
-       switch (GetScode(hr)) 
-       {
-               case DISP_E_UNKNOWNNAME:
-                       wsprintf(szBuf, L"%s: Unknown name or named argument.", szMember);
-                       break;
-       
-               case DISP_E_BADPARAMCOUNT:
-                       wsprintf(szBuf, L"%s: Incorrect number of arguments.", szMember);
-                       break;
-                       
-               case DISP_E_EXCEPTION:
-                       wsprintf(szBuf, L"%s: Error %d: ", szMember, pexcep->wCode);
-                       if (pexcep->bstrDescription != NULL)
-                               lstrcat(szBuf, pexcep->bstrDescription);
-                       else
-                               lstrcat(szBuf, L"<<No Description>>");
-                       break;
-                       
-               case DISP_E_MEMBERNOTFOUND:
-                       wsprintf(szBuf, L"%s: method or property not found.", szMember);
-                       break;
-               
-               case DISP_E_OVERFLOW:
-                       wsprintf(szBuf, L"%s: Overflow while coercing argument values.", szMember);
-                       break;
-               
-               case DISP_E_NONAMEDARGS:
-                       wsprintf(szBuf, L"%s: Object implementation does not support named arguments.",
-                                               szMember);
-                   break;
-                   
-               case DISP_E_UNKNOWNLCID:
-                       wsprintf(szBuf, L"%s: The locale ID is unknown.", szMember);
-                       break;
-               
-               case DISP_E_PARAMNOTOPTIONAL:
-                       wsprintf(szBuf, L"%s: Missing a required parameter.", szMember);
-                       break;
-               
-               case DISP_E_PARAMNOTFOUND:
-                       wsprintf(szBuf, L"%s: Argument not found, argument %d.", szMember, uiArgErr);
-                       break;
-                       
-               case DISP_E_TYPEMISMATCH:
-                       wsprintf(szBuf, L"%s: Type mismatch, argument %d.", szMember, uiArgErr);
-                       break;
-
-               default:
-                       wsprintf(szBuf, L"%s: Unknown error occured.", szMember);
-                       break;
-       }
-       
-       wxLogWarning(szBuf);
+    TCHAR szBuf[512];
+
+    switch (GetScode(hr))
+    {
+        case DISP_E_UNKNOWNNAME:
+            wsprintf(szBuf, L"%s: Unknown name or named argument.", szMember);
+            break;
+
+        case DISP_E_BADPARAMCOUNT:
+            wsprintf(szBuf, L"%s: Incorrect number of arguments.", szMember);
+            break;
+
+        case DISP_E_EXCEPTION:
+            wsprintf(szBuf, L"%s: Error %d: ", szMember, pexcep->wCode);
+            if (pexcep->bstrDescription != NULL)
+                lstrcat(szBuf, pexcep->bstrDescription);
+            else
+                lstrcat(szBuf, L"<<No Description>>");
+            break;
+
+        case DISP_E_MEMBERNOTFOUND:
+            wsprintf(szBuf, L"%s: method or property not found.", szMember);
+            break;
+
+        case DISP_E_OVERFLOW:
+            wsprintf(szBuf, L"%s: Overflow while coercing argument values.", szMember);
+            break;
+
+        case DISP_E_NONAMEDARGS:
+            wsprintf(szBuf, L"%s: Object implementation does not support named arguments.",
+                        szMember);
+            break;
+
+        case DISP_E_UNKNOWNLCID:
+            wsprintf(szBuf, L"%s: The locale ID is unknown.", szMember);
+            break;
+
+        case DISP_E_PARAMNOTOPTIONAL:
+            wsprintf(szBuf, L"%s: Missing a required parameter.", szMember);
+            break;
+
+        case DISP_E_PARAMNOTFOUND:
+            wsprintf(szBuf, L"%s: Argument not found, argument %d.", szMember, uiArgErr);
+            break;
+
+        case DISP_E_TYPEMISMATCH:
+            wsprintf(szBuf, L"%s: Type mismatch, argument %d.", szMember, uiArgErr);
+            break;
+
+        default:
+            wsprintf(szBuf, L"%s: Unknown error occurred.", szMember);
+            break;
+    }
+
+    wxLogWarning(szBuf);
 }
 
 #endif
 
-#endif // __WATCOMC__
-
+#endif // wxUSE_OLE_AUTOMATION