[wxWidgets.git] / 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() ? VARIANT_TRUE : VARIANT_FALSE;
    }
    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_R4:
                variant = oleVariant.fltVal;
                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
bbf1f0e5	1	///////////////////////////////////////////////////////////////////////////////
521bf4ff	2	// Name: src/msw/ole/oleutils.cpp
bbf1f0e5 KB	3	// Purpose: implementation of OLE helper functions
bbf1f0e5 KB	4	// Author: Vadim Zeitlin
3f4a0c5b	5	// Modified by:
bbf1f0e5 KB	6	// Created: 19.02.98
	7	// RCS-ID: $Id$
	8	// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
65571936	9	// Licence: wxWindows licence
bbf1f0e5 KB	10	///////////////////////////////////////////////////////////////////////////////
	11
	12	// ============================================================================
	13	// Declarations
	14	// ============================================================================
	15
	16	// ----------------------------------------------------------------------------
	17	// headers
	18	// ----------------------------------------------------------------------------
	19
bbf1f0e5	20	// For compilers that support precompilation, includes "wx.h".
bbf1f0e5 KB	21	#include "wx/wxprec.h"
	22
	23	#if defined(__BORLANDC__)
e4db172a	24	#pragma hdrstop
bbf1f0e5 KB	25	#endif
bbf1f0e5 KB	26
21709999 JS	27	#if wxUSE_OLE
21709999 JS	28
e4db172a WS	29	#ifndef WX_PRECOMP
	30	#include "wx/log.h"
	31	#endif
	32
ae090fdb JS	33	#ifndef __CYGWIN10__
ae090fdb JS	34
4676948b JS	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
bbf1f0e5 KB	44
bbf1f0e5 KB	45	// OLE
4676948b	46	#ifndef __WXWINCE__
3096bd2f	47	#include "wx/msw/ole/uuid.h"
4676948b JS	48	#endif
4676948b JS	49
3096bd2f	50	#include "wx/msw/ole/oleutils.h"
bbf1f0e5	51
3f4a0c5b VZ	52	#if defined(__VISUALC__) && (__VISUALC__ > 1000)
3f4a0c5b VZ	53	#include <docobj.h>
bbf1f0e5 KB	54	#endif
	55
	56	// ============================================================================
	57	// Implementation
	58	// ============================================================================
	59
0a0e6a5b	60	// return true if the iid is in the array
bbf1f0e5 KB	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] )
0a0e6a5b	65	return true;
bbf1f0e5 KB	66	}
bbf1f0e5 KB	67
0a0e6a5b	68	return false;
bbf1f0e5 KB	69	}
bbf1f0e5 KB	70
e2898549	71	WXDLLEXPORT BSTR wxConvertStringToOle(const wxString& str)
94113cc5	72	{
c45ead7b	73	return wxBasicString(str).Get();
94113cc5 JS	74	}
94113cc5 JS	75
e2898549	76	WXDLLEXPORT wxString wxConvertStringFromOle(BSTR bStr)
94113cc5	77	{
795b0f14 VZ	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
59af032a VZ	83	const int len = SysStringLen(bStr);
59af032a VZ	84
94113cc5	85	#if wxUSE_UNICODE
59af032a	86	wxString str(bStr, len);
94113cc5	87	#else
bba85010	88	wxString str;
9968f7b4	89	if (len)
bba85010	90	{
9968f7b4 VZ	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 */));
bba85010	96	}
94113cc5	97	#endif
59af032a	98
94113cc5 JS	99	return str;
	100	}
	101
	102	// ----------------------------------------------------------------------------
	103	// wxBasicString
	104	// ----------------------------------------------------------------------------
	105
a518e508	106	wxBasicString::wxBasicString(const wxString& str)
94113cc5	107	{
a518e508	108	m_bstrBuf = SysAllocString(str.wc_str(*wxConvCurrent));
94113cc5 JS	109	}
94113cc5 JS	110
a518e508	111	wxBasicString::wxBasicString(const wxBasicString& src)
94113cc5	112	{
a518e508	113	m_bstrBuf = src.Get();
94113cc5 JS	114	}
94113cc5 JS	115
a518e508	116	wxBasicString& wxBasicString::operator=(const wxBasicString& src)
94113cc5	117	{
a518e508 VZ	118	SysReAllocString(&m_bstrBuf, src);
a518e508 VZ	119	return *this;
94113cc5 JS	120	}
94113cc5 JS	121
94113cc5 JS	122	wxBasicString::~wxBasicString()
94113cc5 JS	123	{
a518e508	124	SysFreeString(m_bstrBuf);
94113cc5 JS	125	}
94113cc5 JS	126
a2fd865b VS	127
	128	// ----------------------------------------------------------------------------
	129	// Convert variants
	130	// ----------------------------------------------------------------------------
	131
	132	#if wxUSE_VARIANT
	133
a2fd865b VS	134	WXDLLEXPORT bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant)
a2fd865b VS	135	{
1fbfbfb0	136	VariantInit(&oleVariant);
a2fd865b VS	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	}
a2fd865b VS	151	else if (type == wxT("char"))
	152	{
	153	oleVariant.vt=VT_I1; // Signed Char
	154	oleVariant.cVal=variant.GetChar();
	155	}
a2fd865b VS	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;
85ecb1d5	164	oleVariant.boolVal = variant.GetBool() ? VARIANT_TRUE : VARIANT_FALSE;
a2fd865b VS	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
51909b8b VZ	365	case VT_R4:
	366	variant = oleVariant.fltVal;
	367	break;
	368
a2fd865b VS	369	case VT_R8:
	370	variant = oleVariant.dblVal;
	371	break;
	372
	373	case VT_DISPATCH:
	374	variant = (void*) oleVariant.pdispVal;
	375	break;
	376
	377	case VT_NULL:
	378	variant.MakeNull();
	379	break;
	380
	381	case VT_EMPTY:
	382	break; // Ignore Empty Variant, used only during destruction of objects
	383
	384	default:
	385	wxLogError(wxT("wxAutomationObject::ConvertOleToVariant: Unknown variant value type %X -> %X"),
	386	oleVariant.vt,oleVariant.vt&VT_TYPEMASK);
	387	return false;
	388	}
	389	}
	390
	391	return ok;
	392	}
	393
	394	#endif // wxUSE_VARIANT
	395
c740f496	396
bbf1f0e5 KB	397	// ----------------------------------------------------------------------------
	398	// Debug support
	399	// ----------------------------------------------------------------------------
	400
a2fd865b VS	401	#if wxUSE_DATAOBJ
a2fd865b VS	402
4b6a582b	403	#if wxDEBUG_LEVEL && ( ( defined(__VISUALC__) && (__VISUALC__ > 1000) ) \|\| defined(__MWERKS__) )
f6bcfd97	404	static wxString GetIidName(REFIID riid)
bbf1f0e5 KB	405	{
	406	// an association between symbolic name and numeric value of an IID
	407	struct KNOWN_IID {
	408	const IID *pIid;
f6bcfd97	409	const wxChar *szName;
bbf1f0e5 KB	410	};
	411
	412	// construct the table containing all known interfaces
9a83f860	413	#define ADD_KNOWN_IID(name) { &IID_I##name, wxT(#name) }
bbf1f0e5 KB	414
	415	static const KNOWN_IID aKnownIids[] = {
	416	ADD_KNOWN_IID(AdviseSink),
	417	ADD_KNOWN_IID(AdviseSink2),
	418	ADD_KNOWN_IID(BindCtx),
	419	ADD_KNOWN_IID(ClassFactory),
ba14d986	420	#if ( !defined( __VISUALC__) \|\| (__VISUALC__!=1010) ) && !defined(__MWERKS__)
bbf1f0e5 KB	421	ADD_KNOWN_IID(ContinueCallback),
	422	ADD_KNOWN_IID(EnumOleDocumentViews),
	423	ADD_KNOWN_IID(OleCommandTarget),
	424	ADD_KNOWN_IID(OleDocument),
	425	ADD_KNOWN_IID(OleDocumentSite),
	426	ADD_KNOWN_IID(OleDocumentView),
	427	ADD_KNOWN_IID(Print),
27a9bd48	428	#endif
bbf1f0e5 KB	429	ADD_KNOWN_IID(DataAdviseHolder),
	430	ADD_KNOWN_IID(DataObject),
	431	ADD_KNOWN_IID(Debug),
	432	ADD_KNOWN_IID(DebugStream),
	433	ADD_KNOWN_IID(DfReserved1),
	434	ADD_KNOWN_IID(DfReserved2),
	435	ADD_KNOWN_IID(DfReserved3),
	436	ADD_KNOWN_IID(Dispatch),
	437	ADD_KNOWN_IID(DropSource),
	438	ADD_KNOWN_IID(DropTarget),
	439	ADD_KNOWN_IID(EnumCallback),
	440	ADD_KNOWN_IID(EnumFORMATETC),
	441	ADD_KNOWN_IID(EnumGeneric),
	442	ADD_KNOWN_IID(EnumHolder),
	443	ADD_KNOWN_IID(EnumMoniker),
	444	ADD_KNOWN_IID(EnumOLEVERB),
	445	ADD_KNOWN_IID(EnumSTATDATA),
	446	ADD_KNOWN_IID(EnumSTATSTG),
	447	ADD_KNOWN_IID(EnumString),
	448	ADD_KNOWN_IID(EnumUnknown),
	449	ADD_KNOWN_IID(EnumVARIANT),
	450	ADD_KNOWN_IID(ExternalConnection),
	451	ADD_KNOWN_IID(InternalMoniker),
	452	ADD_KNOWN_IID(LockBytes),
	453	ADD_KNOWN_IID(Malloc),
	454	ADD_KNOWN_IID(Marshal),
	455	ADD_KNOWN_IID(MessageFilter),
	456	ADD_KNOWN_IID(Moniker),
	457	ADD_KNOWN_IID(OleAdviseHolder),
	458	ADD_KNOWN_IID(OleCache),
	459	ADD_KNOWN_IID(OleCache2),
	460	ADD_KNOWN_IID(OleCacheControl),
	461	ADD_KNOWN_IID(OleClientSite),
	462	ADD_KNOWN_IID(OleContainer),
	463	ADD_KNOWN_IID(OleInPlaceActiveObject),
	464	ADD_KNOWN_IID(OleInPlaceFrame),
	465	ADD_KNOWN_IID(OleInPlaceObject),
	466	ADD_KNOWN_IID(OleInPlaceSite),
	467	ADD_KNOWN_IID(OleInPlaceUIWindow),
	468	ADD_KNOWN_IID(OleItemContainer),
	469	ADD_KNOWN_IID(OleLink),
	470	ADD_KNOWN_IID(OleManager),
	471	ADD_KNOWN_IID(OleObject),
	472	ADD_KNOWN_IID(OlePresObj),
	473	ADD_KNOWN_IID(OleWindow),
	474	ADD_KNOWN_IID(PSFactory),
	475	ADD_KNOWN_IID(ParseDisplayName),
	476	ADD_KNOWN_IID(Persist),
	477	ADD_KNOWN_IID(PersistFile),
	478	ADD_KNOWN_IID(PersistStorage),
	479	ADD_KNOWN_IID(PersistStream),
	480	ADD_KNOWN_IID(ProxyManager),
	481	ADD_KNOWN_IID(RootStorage),
	482	ADD_KNOWN_IID(RpcChannel),
	483	ADD_KNOWN_IID(RpcProxy),
	484	ADD_KNOWN_IID(RpcStub),
	485	ADD_KNOWN_IID(RunnableObject),
	486	ADD_KNOWN_IID(RunningObjectTable),
	487	ADD_KNOWN_IID(StdMarshalInfo),
	488	ADD_KNOWN_IID(Storage),
	489	ADD_KNOWN_IID(Stream),
	490	ADD_KNOWN_IID(StubManager),
	491	ADD_KNOWN_IID(Unknown),
	492	ADD_KNOWN_IID(ViewObject),
493	ADD_KNOWN_IID(ViewObject2),
494	};
495
496	// don't clobber preprocessor name space
497	#undef ADD_KNOWN_IID
498
499	// try to find the interface in the table
c86f1403	500	for ( size_t ui = 0; ui < WXSIZEOF(aKnownIids); ui++ ) {
bbf1f0e5 KB	501	if ( riid == *aKnownIids[ui].pIid ) {
	502	return aKnownIids[ui].szName;
	503	}
	504	}
	505
4676948b	506	#ifndef __WXWINCE__
bbf1f0e5	507	// unknown IID, just transform to string
f6bcfd97 BP	508	Uuid uuid(riid);
f6bcfd97 BP	509	return wxString((const wxChar *)uuid);
4676948b JS	510	#else
	511	return wxEmptyString;
	512	#endif
bbf1f0e5 KB	513	}
bbf1f0e5 KB	514
f6bcfd97	515	void wxLogQueryInterface(const wxChar *szInterface, REFIID riid)
bbf1f0e5	516	{
ba14d986	517	wxLogTrace(wxTRACE_OleCalls, wxT("%s::QueryInterface (iid = %s)"),
f6bcfd97	518	szInterface, GetIidName(riid).c_str());
bbf1f0e5 KB	519	}
bbf1f0e5 KB	520
f6bcfd97	521	void wxLogAddRef(const wxChar *szInterface, ULONG cRef)
bbf1f0e5	522	{
ba14d986	523	wxLogTrace(wxTRACE_OleCalls, wxT("After %s::AddRef: m_cRef = %d"), szInterface, cRef + 1);
bbf1f0e5 KB	524	}
bbf1f0e5 KB	525
f6bcfd97	526	void wxLogRelease(const wxChar *szInterface, ULONG cRef)
bbf1f0e5	527	{
ba14d986	528	wxLogTrace(wxTRACE_OleCalls, wxT("After %s::Release: m_cRef = %d"), szInterface, cRef - 1);
bbf1f0e5 KB	529	}
bbf1f0e5 KB	530
4b6a582b	531	#endif // wxDEBUG_LEVEL
aeab10d0	532
a2fd865b	533	#endif // wxUSE_DATAOBJ
aeab10d0	534
4b6a582b	535	#endif // __CYGWIN10__
aeab10d0	536
4b6a582b	537	#endif // wxUSE_OLE