src/msw/ole/oleutils.cpp

///////////////////////////////////////////////////////////////////////////////
// Name:        src/msw/ole/oleutils.cpp
// Purpose:     implementation of OLE helper functions
// Author:      Vadim Zeitlin
// Modified by:
// Created:     19.02.98
// RCS-ID:      $Id$
// Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

// ============================================================================
// Declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#if defined(__BORLANDC__)
    #pragma hdrstop
#endif

#if wxUSE_OLE

#ifndef WX_PRECOMP
    #include "wx/log.h"
#endif

#ifndef __CYGWIN10__

#include "wx/msw/private.h"

#ifdef __WXWINCE__
    #include <winreg.h>
    #include <ole2.h>

    #define GUID_DEFINED
    #define UUID_DEFINED
#endif

// OLE
#ifndef __WXWINCE__
#include  "wx/msw/ole/uuid.h"
#endif

#include  "wx/msw/ole/oleutils.h"

#if defined(__VISUALC__) && (__VISUALC__ > 1000)
    #include  <docobj.h>
#endif

// ============================================================================
// Implementation
// ============================================================================

// return true if the iid is in the array
bool IsIidFromList(REFIID riid, const IID *aIids[], size_t nCount)
{
  for ( size_t i = 0; i < nCount; i++ ) {
    if ( riid == *aIids[i] )
      return true;
  }

  return false;
}

WXDLLEXPORT BSTR wxConvertStringToOle(const wxString& str)
{
    return wxBasicString(str).Get();
}

WXDLLEXPORT wxString wxConvertStringFromOle(BSTR bStr)
{
    // NULL BSTR is equivalent to an empty string (this is the convention used
    // by VB and hence we must follow it)
    if ( !bStr )
        return wxString();

    const int len = SysStringLen(bStr);

#if wxUSE_UNICODE
    wxString str(bStr, len);
#else
    wxString str;
    if (len)
    {
        wxStringBufferLength buf(str, len); // asserts if len == 0
        buf.SetLength(WideCharToMultiByte(CP_ACP, 0 /* no flags */,
                                  bStr, len /* not necessarily NUL-terminated */,
                                  buf, len,
                                  NULL, NULL /* no default char */));
    }
#endif

    return str;
}

// ----------------------------------------------------------------------------
// wxBasicString
// ----------------------------------------------------------------------------

wxBasicString::wxBasicString(const wxString& str)
{
    m_bstrBuf = SysAllocString(str.wc_str(*wxConvCurrent));
}

wxBasicString::wxBasicString(const wxBasicString& src)
{
    m_bstrBuf = src.Get();
}

wxBasicString& wxBasicString::operator=(const wxBasicString& src)
{
    SysReAllocString(&m_bstrBuf, src);
    return *this;
}

wxBasicString::~wxBasicString()
{
    SysFreeString(m_bstrBuf);
}


// ----------------------------------------------------------------------------
// Convert variants
// ----------------------------------------------------------------------------

#if wxUSE_VARIANT

WXDLLEXPORT bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant)
{
    VariantInit(&oleVariant);
    if (variant.IsNull())
    {
        oleVariant.vt = VT_NULL;
        return true;
    }

    wxString type(variant.GetType());


    if (type == wxT("long"))
    {
        oleVariant.vt = VT_I4;
        oleVariant.lVal = variant.GetLong() ;
    }
    else if (type == wxT("char"))
    {
        oleVariant.vt=VT_I1;            // Signed Char
        oleVariant.cVal=variant.GetChar();
    }
    else if (type == wxT("double"))
    {
        oleVariant.vt = VT_R8;
        oleVariant.dblVal = variant.GetDouble();
    }
    else if (type == wxT("bool"))
    {
        oleVariant.vt = VT_BOOL;
        oleVariant.boolVal = variant.GetBool();
    }
    else if (type == wxT("string"))
    {
        wxString str( variant.GetString() );
        oleVariant.vt = VT_BSTR;
        oleVariant.bstrVal = wxConvertStringToOle(str);
    }
#if wxUSE_DATETIME
    else if (type == wxT("datetime"))
    {
        wxDateTime date( variant.GetDateTime() );
        oleVariant.vt = VT_DATE;

        SYSTEMTIME st;
        date.GetAsMSWSysTime(&st);

        SystemTimeToVariantTime(&st, &oleVariant.date);
    }
#endif
    else if (type == wxT("void*"))
    {
        oleVariant.vt = VT_DISPATCH;
        oleVariant.pdispVal = (IDispatch*) variant.GetVoidPtr();
    }
    else if (type == wxT("list") || type == wxT("stringlist"))
    {
        oleVariant.vt = VT_VARIANT | VT_ARRAY;

        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
            wxVariant eachVariant(variant[i]);
            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);

        oleVariant.parray = psa;
    }
    else
    {
        oleVariant.vt = VT_NULL;
        return false;
    }
    return true;
}

#ifndef VT_TYPEMASK
#define VT_TYPEMASK 0xfff
#endif

WXDLLEXPORT bool
wxConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant)
{
    bool ok = true;
    if ( oleVariant.vt & VT_ARRAY )
    {

        // 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
        void* pvdata;
        HRESULT hr = SafeArrayAccessData(oleVariant.parray, &pvdata);
        if ( FAILED(hr) )
            return false;

        switch (oleVariant.vt & VT_TYPEMASK)
        {
            case VT_VARIANT:
                {
                    variant.ClearList();
                    VARIANTARG *variant_data=(VARIANTARG*)pvdata;
                    for ( int i = 0; i < cElements; i++ )
                    {
                        VARIANTARG& oleElement = variant_data[i];
                        wxVariant vElement;
                        if ( !wxConvertOleToVariant(oleElement, vElement) )
                        {
                            ok = false;
                            variant.ClearList();
                            break;
                        }

                        variant.Append(vElement);
                    }
                }
                break;

            case VT_BSTR:
                {
                    wxArrayString strings;
                    BSTR *string_val=(BSTR*)pvdata;
                    for ( int i = 0; i < cElements; ++i )
                    {
                        wxString str=wxConvertStringFromOle(*string_val);
                        strings.Add(str);
                        ++string_val;
                    }
                    variant=strings;
                }
                break;

            default:
                wxLogDebug(wxT("unhandled VT_ARRAY type %x in wxConvertOleToVariant"),
                           oleVariant.vt & VT_TYPEMASK);
                variant = wxVariant();
                ok = false;
                break;
        }

        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
                {
                    SYSTEMTIME st;
                    VariantTimeToSystemTime(oleVariant.date, &st);

                    wxDateTime date;
                    date.SetFromMSWSysTime(st);
                    variant = date;
                }
#endif // wxUSE_DATETIME
                break;

            case VT_I4:
                variant = (long) oleVariant.lVal;
                break;

            case VT_I2:
                variant = (long) oleVariant.iVal;
                break;

            case VT_BOOL:
                variant = oleVariant.boolVal != 0;
                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;
        }
    }

    return ok;
}

#endif // wxUSE_VARIANT


// ----------------------------------------------------------------------------
// Debug support
// ----------------------------------------------------------------------------

#if wxUSE_DATAOBJ

#if wxDEBUG_LEVEL && ( ( defined(__VISUALC__) && (__VISUALC__ > 1000) ) || defined(__MWERKS__) )
static wxString GetIidName(REFIID riid)
{
  // an association between symbolic name and numeric value of an IID
  struct KNOWN_IID {
    const IID  *pIid;
    const wxChar *szName;
  };

  // construct the table containing all known interfaces
  #define ADD_KNOWN_IID(name) { &IID_I##name, wxT(#name) }

  static const KNOWN_IID aKnownIids[] = {
    ADD_KNOWN_IID(AdviseSink),
    ADD_KNOWN_IID(AdviseSink2),
    ADD_KNOWN_IID(BindCtx),
    ADD_KNOWN_IID(ClassFactory),
#if ( !defined( __VISUALC__) || (__VISUALC__!=1010) ) && !defined(__MWERKS__)
    ADD_KNOWN_IID(ContinueCallback),
    ADD_KNOWN_IID(EnumOleDocumentViews),
    ADD_KNOWN_IID(OleCommandTarget),
    ADD_KNOWN_IID(OleDocument),
    ADD_KNOWN_IID(OleDocumentSite),
    ADD_KNOWN_IID(OleDocumentView),
    ADD_KNOWN_IID(Print),
#endif
    ADD_KNOWN_IID(DataAdviseHolder),
    ADD_KNOWN_IID(DataObject),
    ADD_KNOWN_IID(Debug),
    ADD_KNOWN_IID(DebugStream),
    ADD_KNOWN_IID(DfReserved1),
    ADD_KNOWN_IID(DfReserved2),
    ADD_KNOWN_IID(DfReserved3),
    ADD_KNOWN_IID(Dispatch),
    ADD_KNOWN_IID(DropSource),
    ADD_KNOWN_IID(DropTarget),
    ADD_KNOWN_IID(EnumCallback),
    ADD_KNOWN_IID(EnumFORMATETC),
    ADD_KNOWN_IID(EnumGeneric),
    ADD_KNOWN_IID(EnumHolder),
    ADD_KNOWN_IID(EnumMoniker),
    ADD_KNOWN_IID(EnumOLEVERB),
    ADD_KNOWN_IID(EnumSTATDATA),
    ADD_KNOWN_IID(EnumSTATSTG),
    ADD_KNOWN_IID(EnumString),
    ADD_KNOWN_IID(EnumUnknown),
    ADD_KNOWN_IID(EnumVARIANT),
    ADD_KNOWN_IID(ExternalConnection),
    ADD_KNOWN_IID(InternalMoniker),
    ADD_KNOWN_IID(LockBytes),
    ADD_KNOWN_IID(Malloc),
    ADD_KNOWN_IID(Marshal),
    ADD_KNOWN_IID(MessageFilter),
    ADD_KNOWN_IID(Moniker),
    ADD_KNOWN_IID(OleAdviseHolder),
    ADD_KNOWN_IID(OleCache),
    ADD_KNOWN_IID(OleCache2),
    ADD_KNOWN_IID(OleCacheControl),
    ADD_KNOWN_IID(OleClientSite),
    ADD_KNOWN_IID(OleContainer),
    ADD_KNOWN_IID(OleInPlaceActiveObject),
    ADD_KNOWN_IID(OleInPlaceFrame),
    ADD_KNOWN_IID(OleInPlaceObject),
    ADD_KNOWN_IID(OleInPlaceSite),
    ADD_KNOWN_IID(OleInPlaceUIWindow),
    ADD_KNOWN_IID(OleItemContainer),
    ADD_KNOWN_IID(OleLink),
    ADD_KNOWN_IID(OleManager),
    ADD_KNOWN_IID(OleObject),
    ADD_KNOWN_IID(OlePresObj),
    ADD_KNOWN_IID(OleWindow),
    ADD_KNOWN_IID(PSFactory),
    ADD_KNOWN_IID(ParseDisplayName),
    ADD_KNOWN_IID(Persist),
    ADD_KNOWN_IID(PersistFile),
    ADD_KNOWN_IID(PersistStorage),
    ADD_KNOWN_IID(PersistStream),
    ADD_KNOWN_IID(ProxyManager),
    ADD_KNOWN_IID(RootStorage),
    ADD_KNOWN_IID(RpcChannel),
    ADD_KNOWN_IID(RpcProxy),
    ADD_KNOWN_IID(RpcStub),
    ADD_KNOWN_IID(RunnableObject),
    ADD_KNOWN_IID(RunningObjectTable),
    ADD_KNOWN_IID(StdMarshalInfo),
    ADD_KNOWN_IID(Storage),
    ADD_KNOWN_IID(Stream),
    ADD_KNOWN_IID(StubManager),
    ADD_KNOWN_IID(Unknown),
    ADD_KNOWN_IID(ViewObject),
    ADD_KNOWN_IID(ViewObject2),
  };

  // don't clobber preprocessor name space
  #undef ADD_KNOWN_IID

  // try to find the interface in the table
  for ( size_t ui = 0; ui < WXSIZEOF(aKnownIids); ui++ ) {
    if ( riid == *aKnownIids[ui].pIid ) {
      return aKnownIids[ui].szName;
    }
  }

#ifndef __WXWINCE__
  // unknown IID, just transform to string
  Uuid uuid(riid);
  return wxString((const wxChar *)uuid);
#else
  return wxEmptyString;
#endif
}

void wxLogQueryInterface(const wxChar *szInterface, REFIID riid)
{
  wxLogTrace(wxTRACE_OleCalls, wxT("%s::QueryInterface (iid = %s)"),
             szInterface, GetIidName(riid).c_str());
}

void wxLogAddRef(const wxChar *szInterface, ULONG cRef)
{
  wxLogTrace(wxTRACE_OleCalls, wxT("After %s::AddRef: m_cRef = %d"), szInterface, cRef + 1);
}

void wxLogRelease(const wxChar *szInterface, ULONG cRef)
{
  wxLogTrace(wxTRACE_OleCalls, wxT("After %s::Release: m_cRef = %d"), szInterface, cRef - 1);
}

#endif  // wxDEBUG_LEVEL

#endif // wxUSE_DATAOBJ

#endif // __CYGWIN10__

#endif // wxUSE_OLE
Commit	Line	Data
	1	///////////////////////////////////////////////////////////////////////////////
	2	// Name: src/msw/ole/oleutils.cpp
	3	// Purpose: implementation of OLE helper functions
	4	// Author: Vadim Zeitlin
	5	// Modified by:
	6	// Created: 19.02.98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
	9	// Licence: wxWindows licence
	10	///////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// Declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
	20	// For compilers that support precompilation, includes "wx.h".
	21	#include "wx/wxprec.h"
	22
	23	#if defined(__BORLANDC__)
	24	#pragma hdrstop
	25	#endif
	26
	27	#if wxUSE_OLE
	28
	29	#ifndef WX_PRECOMP
	30	#include "wx/log.h"
	31	#endif
	32
	33	#ifndef __CYGWIN10__
	34
	35	#include "wx/msw/private.h"
	36
	37	#ifdef __WXWINCE__
	38	#include <winreg.h>
	39	#include <ole2.h>
	40
	41	#define GUID_DEFINED
	42	#define UUID_DEFINED
	43	#endif
	44
	45	// OLE
	46	#ifndef __WXWINCE__
	47	#include "wx/msw/ole/uuid.h"
	48	#endif
	49
	50	#include "wx/msw/ole/oleutils.h"
	51
	52	#if defined(__VISUALC__) && (__VISUALC__ > 1000)
	53	#include <docobj.h>
	54	#endif
	55
	56	// ============================================================================
	57	// Implementation
	58	// ============================================================================
	59
	60	// return true if the iid is in the array
	61	bool IsIidFromList(REFIID riid, const IID *aIids[], size_t nCount)
	62	{
	63	for ( size_t i = 0; i < nCount; i++ ) {
	64	if ( riid == *aIids[i] )
	65	return true;
	66	}
	67
	68	return false;
	69	}
	70
	71	WXDLLEXPORT BSTR wxConvertStringToOle(const wxString& str)
	72	{
	73	return wxBasicString(str).Get();
	74	}
	75
	76	WXDLLEXPORT wxString wxConvertStringFromOle(BSTR bStr)
	77	{
	78	// NULL BSTR is equivalent to an empty string (this is the convention used
	79	// by VB and hence we must follow it)
	80	if ( !bStr )
	81	return wxString();
	82
	83	const int len = SysStringLen(bStr);
	84
	85	#if wxUSE_UNICODE
	86	wxString str(bStr, len);
	87	#else
	88	wxString str;
	89	if (len)
	90	{
	91	wxStringBufferLength buf(str, len); // asserts if len == 0
	92	buf.SetLength(WideCharToMultiByte(CP_ACP, 0 /* no flags */,
	93	bStr, len /* not necessarily NUL-terminated */,
	94	buf, len,
	95	NULL, NULL /* no default char */));
	96	}
	97	#endif
	98
	99	return str;
	100	}
	101
	102	// ----------------------------------------------------------------------------
	103	// wxBasicString
	104	// ----------------------------------------------------------------------------
	105
	106	wxBasicString::wxBasicString(const wxString& str)
	107	{
	108	m_bstrBuf = SysAllocString(str.wc_str(*wxConvCurrent));
	109	}
	110
	111	wxBasicString::wxBasicString(const wxBasicString& src)
	112	{
	113	m_bstrBuf = src.Get();
	114	}
	115
	116	wxBasicString& wxBasicString::operator=(const wxBasicString& src)
	117	{
	118	SysReAllocString(&m_bstrBuf, src);
	119	return *this;
	120	}
	121
	122	wxBasicString::~wxBasicString()
	123	{
	124	SysFreeString(m_bstrBuf);
	125	}
	126
	127
	128	// ----------------------------------------------------------------------------
	129	// Convert variants
	130	// ----------------------------------------------------------------------------
	131
	132	#if wxUSE_VARIANT
	133
	134	WXDLLEXPORT bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant)
	135	{
	136	VariantInit(&oleVariant);
	137	if (variant.IsNull())
	138	{
	139	oleVariant.vt = VT_NULL;
	140	return true;
	141	}
	142
	143	wxString type(variant.GetType());
	144
	145
	146	if (type == wxT("long"))
	147	{
	148	oleVariant.vt = VT_I4;
	149	oleVariant.lVal = variant.GetLong() ;
	150	}
	151	else if (type == wxT("char"))
	152	{
	153	oleVariant.vt=VT_I1; // Signed Char
	154	oleVariant.cVal=variant.GetChar();
	155	}
	156	else if (type == wxT("double"))
	157	{
	158	oleVariant.vt = VT_R8;
	159	oleVariant.dblVal = variant.GetDouble();
	160	}
	161	else if (type == wxT("bool"))
	162	{
	163	oleVariant.vt = VT_BOOL;
	164	oleVariant.boolVal = variant.GetBool();
	165	}
	166	else if (type == wxT("string"))
	167	{
	168	wxString str( variant.GetString() );
	169	oleVariant.vt = VT_BSTR;
	170	oleVariant.bstrVal = wxConvertStringToOle(str);
	171	}
	172	#if wxUSE_DATETIME
	173	else if (type == wxT("datetime"))
	174	{
	175	wxDateTime date( variant.GetDateTime() );
	176	oleVariant.vt = VT_DATE;
	177
	178	SYSTEMTIME st;
	179	date.GetAsMSWSysTime(&st);
	180
	181	SystemTimeToVariantTime(&st, &oleVariant.date);
	182	}
	183	#endif
	184	else if (type == wxT("void*"))
	185	{
	186	oleVariant.vt = VT_DISPATCH;
	187	oleVariant.pdispVal = (IDispatch*) variant.GetVoidPtr();
	188	}
	189	else if (type == wxT("list") \|\| type == wxT("stringlist"))
	190	{
	191	oleVariant.vt = VT_VARIANT \| VT_ARRAY;
	192
	193	SAFEARRAY *psa;
	194	SAFEARRAYBOUND saBound;
	195	VARIANTARG *pvargBase;
	196	VARIANTARG *pvarg;
	197	int i, j;
	198
	199	int iCount = variant.GetCount();
	200
	201	saBound.lLbound = 0;
	202	saBound.cElements = iCount;
	203
	204	psa = SafeArrayCreate(VT_VARIANT, 1, &saBound);
	205	if (psa == NULL)
	206	return false;
	207
	208	SafeArrayAccessData(psa, (void**)&pvargBase);
	209
	210	pvarg = pvargBase;
	211	for (i = 0; i < iCount; i++)
	212	{
	213	// copy each string in the list of strings
	214	wxVariant eachVariant(variant[i]);
	215	if (!wxConvertVariantToOle(eachVariant, * pvarg))
	216	{
	217	// memory failure: back out and free strings alloc'ed up to
	218	// now, and then the array itself.
	219	pvarg = pvargBase;
	220	for (j = 0; j < i; j++)
	221	{
	222	SysFreeString(pvarg->bstrVal);
	223	pvarg++;
	224	}
	225	SafeArrayDestroy(psa);
	226	return false;
	227	}
	228	pvarg++;
	229	}
	230
	231	SafeArrayUnaccessData(psa);
	232
	233	oleVariant.parray = psa;
	234	}
	235	else
	236	{
	237	oleVariant.vt = VT_NULL;
	238	return false;
	239	}
	240	return true;
	241	}
	242
	243	#ifndef VT_TYPEMASK
	244	#define VT_TYPEMASK 0xfff
	245	#endif
	246
	247	WXDLLEXPORT bool
	248	wxConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant)
	249	{
	250	bool ok = true;
	251	if ( oleVariant.vt & VT_ARRAY )
	252	{
	253
	254	// Compute the total number of elements in all array dimensions
	255	int cElements = 1;
	256	for ( int cDims = 0; cDims < oleVariant.parray->cDims; cDims++ )
	257	cElements *= oleVariant.parray->rgsabound[cDims].cElements;
	258
	259	// Get a pointer to the data
	260	void* pvdata;
	261	HRESULT hr = SafeArrayAccessData(oleVariant.parray, &pvdata);
	262	if ( FAILED(hr) )
	263	return false;
	264
	265	switch (oleVariant.vt & VT_TYPEMASK)
	266	{
	267	case VT_VARIANT:
	268	{
	269	variant.ClearList();
	270	VARIANTARG variant_data=(VARIANTARG)pvdata;
	271	for ( int i = 0; i < cElements; i++ )
	272	{
	273	VARIANTARG& oleElement = variant_data[i];
	274	wxVariant vElement;
	275	if ( !wxConvertOleToVariant(oleElement, vElement) )
	276	{
	277	ok = false;
	278	variant.ClearList();
	279	break;
	280	}
	281
	282	variant.Append(vElement);
	283	}
	284	}
	285	break;
	286
	287	case VT_BSTR:
	288	{
	289	wxArrayString strings;
	290	BSTR string_val=(BSTR)pvdata;
	291	for ( int i = 0; i < cElements; ++i )
	292	{
	293	wxString str=wxConvertStringFromOle(*string_val);
	294	strings.Add(str);
	295	++string_val;
	296	}
	297	variant=strings;
	298	}
	299	break;
	300
	301	default:
	302	wxLogDebug(wxT("unhandled VT_ARRAY type %x in wxConvertOleToVariant"),
	303	oleVariant.vt & VT_TYPEMASK);
	304	variant = wxVariant();
	305	ok = false;
	306	break;
	307	}
	308
	309	SafeArrayUnaccessData(oleVariant.parray);
	310	}
	311	else if ( oleVariant.vt & VT_BYREF )
	312	{
	313	switch ( oleVariant.vt & VT_TYPEMASK )
	314	{
	315	case VT_VARIANT:
	316	{
	317	VARIANTARG& oleReference = *((LPVARIANT)oleVariant.byref);
	318	if (!wxConvertOleToVariant(oleReference,variant))
	319	return false;
	320	break;
	321	}
	322
	323	default:
	324	wxLogError(wxT("wxAutomationObject::ConvertOleToVariant: [as yet] unhandled reference %X"),
	325	oleVariant.vt);
	326	return false;
	327	}
	328	}
	329	else // simply type (not array or reference)
	330	{
	331	switch ( oleVariant.vt & VT_TYPEMASK )
	332	{
	333	case VT_BSTR:
	334	{
	335	wxString str(wxConvertStringFromOle(oleVariant.bstrVal));
	336	variant = str;
	337	}
	338	break;
	339
	340	case VT_DATE:
	341	#if wxUSE_DATETIME
	342	{
	343	SYSTEMTIME st;
	344	VariantTimeToSystemTime(oleVariant.date, &st);
	345
	346	wxDateTime date;
	347	date.SetFromMSWSysTime(st);
	348	variant = date;
	349	}
	350	#endif // wxUSE_DATETIME
	351	break;
	352
	353	case VT_I4:
	354	variant = (long) oleVariant.lVal;
	355	break;
	356
	357	case VT_I2:
	358	variant = (long) oleVariant.iVal;
	359	break;
	360
	361	case VT_BOOL:
	362	variant = oleVariant.boolVal != 0;
	363	break;
	364
	365	case VT_R8:
	366	variant = oleVariant.dblVal;
	367	break;
	368
	369	case VT_DISPATCH:
	370	variant = (void*) oleVariant.pdispVal;
	371	break;
	372
	373	case VT_NULL:
	374	variant.MakeNull();
	375	break;
	376
	377	case VT_EMPTY:
	378	break; // Ignore Empty Variant, used only during destruction of objects
	379
	380	default:
	381	wxLogError(wxT("wxAutomationObject::ConvertOleToVariant: Unknown variant value type %X -> %X"),
	382	oleVariant.vt,oleVariant.vt&VT_TYPEMASK);
	383	return false;
	384	}
	385	}
	386
	387	return ok;
	388	}
	389
	390	#endif // wxUSE_VARIANT
	391
	392
	393	// ----------------------------------------------------------------------------
	394	// Debug support
	395	// ----------------------------------------------------------------------------
	396
	397	#if wxUSE_DATAOBJ
	398
	399	#if wxDEBUG_LEVEL && ( ( defined(__VISUALC__) && (__VISUALC__ > 1000) ) \|\| defined(__MWERKS__) )
	400	static wxString GetIidName(REFIID riid)
	401	{
	402	// an association between symbolic name and numeric value of an IID
	403	struct KNOWN_IID {
	404	const IID *pIid;
	405	const wxChar *szName;
	406	};
	407
	408	// construct the table containing all known interfaces
	409	#define ADD_KNOWN_IID(name) { &IID_I##name, wxT(#name) }
	410
	411	static const KNOWN_IID aKnownIids[] = {
	412	ADD_KNOWN_IID(AdviseSink),
	413	ADD_KNOWN_IID(AdviseSink2),
	414	ADD_KNOWN_IID(BindCtx),
	415	ADD_KNOWN_IID(ClassFactory),
	416	#if ( !defined( __VISUALC__) \|\| (__VISUALC__!=1010) ) && !defined(__MWERKS__)
	417	ADD_KNOWN_IID(ContinueCallback),
	418	ADD_KNOWN_IID(EnumOleDocumentViews),
	419	ADD_KNOWN_IID(OleCommandTarget),
	420	ADD_KNOWN_IID(OleDocument),
	421	ADD_KNOWN_IID(OleDocumentSite),
	422	ADD_KNOWN_IID(OleDocumentView),
	423	ADD_KNOWN_IID(Print),
	424	#endif
	425	ADD_KNOWN_IID(DataAdviseHolder),
	426	ADD_KNOWN_IID(DataObject),
	427	ADD_KNOWN_IID(Debug),
	428	ADD_KNOWN_IID(DebugStream),
	429	ADD_KNOWN_IID(DfReserved1),
	430	ADD_KNOWN_IID(DfReserved2),
	431	ADD_KNOWN_IID(DfReserved3),
	432	ADD_KNOWN_IID(Dispatch),
	433	ADD_KNOWN_IID(DropSource),
	434	ADD_KNOWN_IID(DropTarget),
	435	ADD_KNOWN_IID(EnumCallback),
	436	ADD_KNOWN_IID(EnumFORMATETC),
	437	ADD_KNOWN_IID(EnumGeneric),
	438	ADD_KNOWN_IID(EnumHolder),
	439	ADD_KNOWN_IID(EnumMoniker),
	440	ADD_KNOWN_IID(EnumOLEVERB),
	441	ADD_KNOWN_IID(EnumSTATDATA),
	442	ADD_KNOWN_IID(EnumSTATSTG),
	443	ADD_KNOWN_IID(EnumString),
	444	ADD_KNOWN_IID(EnumUnknown),
	445	ADD_KNOWN_IID(EnumVARIANT),
	446	ADD_KNOWN_IID(ExternalConnection),
	447	ADD_KNOWN_IID(InternalMoniker),
	448	ADD_KNOWN_IID(LockBytes),
	449	ADD_KNOWN_IID(Malloc),
	450	ADD_KNOWN_IID(Marshal),
	451	ADD_KNOWN_IID(MessageFilter),
	452	ADD_KNOWN_IID(Moniker),
	453	ADD_KNOWN_IID(OleAdviseHolder),
	454	ADD_KNOWN_IID(OleCache),
	455	ADD_KNOWN_IID(OleCache2),
	456	ADD_KNOWN_IID(OleCacheControl),
	457	ADD_KNOWN_IID(OleClientSite),
	458	ADD_KNOWN_IID(OleContainer),
	459	ADD_KNOWN_IID(OleInPlaceActiveObject),
	460	ADD_KNOWN_IID(OleInPlaceFrame),
	461	ADD_KNOWN_IID(OleInPlaceObject),
	462	ADD_KNOWN_IID(OleInPlaceSite),
	463	ADD_KNOWN_IID(OleInPlaceUIWindow),
	464	ADD_KNOWN_IID(OleItemContainer),
	465	ADD_KNOWN_IID(OleLink),
	466	ADD_KNOWN_IID(OleManager),
	467	ADD_KNOWN_IID(OleObject),
	468	ADD_KNOWN_IID(OlePresObj),
	469	ADD_KNOWN_IID(OleWindow),
	470	ADD_KNOWN_IID(PSFactory),
	471	ADD_KNOWN_IID(ParseDisplayName),
	472	ADD_KNOWN_IID(Persist),
	473	ADD_KNOWN_IID(PersistFile),
	474	ADD_KNOWN_IID(PersistStorage),
	475	ADD_KNOWN_IID(PersistStream),
	476	ADD_KNOWN_IID(ProxyManager),
	477	ADD_KNOWN_IID(RootStorage),
	478	ADD_KNOWN_IID(RpcChannel),
	479	ADD_KNOWN_IID(RpcProxy),
	480	ADD_KNOWN_IID(RpcStub),
	481	ADD_KNOWN_IID(RunnableObject),
	482	ADD_KNOWN_IID(RunningObjectTable),
	483	ADD_KNOWN_IID(StdMarshalInfo),
	484	ADD_KNOWN_IID(Storage),
	485	ADD_KNOWN_IID(Stream),
	486	ADD_KNOWN_IID(StubManager),
	487	ADD_KNOWN_IID(Unknown),
	488	ADD_KNOWN_IID(ViewObject),
	489	ADD_KNOWN_IID(ViewObject2),
	490	};
	491
	492	// don't clobber preprocessor name space
	493	#undef ADD_KNOWN_IID
	494
	495	// try to find the interface in the table
	496	for ( size_t ui = 0; ui < WXSIZEOF(aKnownIids); ui++ ) {
	497	if ( riid == *aKnownIids[ui].pIid ) {
	498	return aKnownIids[ui].szName;
	499	}
	500	}
	501
	502	#ifndef __WXWINCE__
	503	// unknown IID, just transform to string
	504	Uuid uuid(riid);
	505	return wxString((const wxChar *)uuid);
	506	#else
	507	return wxEmptyString;
	508	#endif
	509	}
	510
	511	void wxLogQueryInterface(const wxChar *szInterface, REFIID riid)
	512	{
	513	wxLogTrace(wxTRACE_OleCalls, wxT("%s::QueryInterface (iid = %s)"),
	514	szInterface, GetIidName(riid).c_str());
	515	}
	516
	517	void wxLogAddRef(const wxChar *szInterface, ULONG cRef)
	518	{
	519	wxLogTrace(wxTRACE_OleCalls, wxT("After %s::AddRef: m_cRef = %d"), szInterface, cRef + 1);
	520	}
	521
	522	void wxLogRelease(const wxChar *szInterface, ULONG cRef)
	523	{
	524	wxLogTrace(wxTRACE_OleCalls, wxT("After %s::Release: m_cRef = %d"), szInterface, cRef - 1);
	525	}
	526
	527	#endif // wxDEBUG_LEVEL
	528
	529	#endif // wxUSE_DATAOBJ
	530
	531	#endif // __CYGWIN10__
	532
	533	#endif // wxUSE_OLE