Use new function GetItemLabel

[wxWidgets.git] / src / msw / ole / dataobj.cpp

diff --git a/src/msw/ole/dataobj.cpp b/src/msw/ole/dataobj.cpp
index 30f46b1cf0bd4adb649ed6f650627c57b2337074..3831f98b1a266b1de2a0129efadee21dd8986fa5 100644 (file)
--- a/src/msw/ole/dataobj.cpp
+++ b/src/msw/ole/dataobj.cpp
@@ -6,7 +6,7 @@
 // Created:     10.05.98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
 // Created:     10.05.98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================


@@ -17,38 +17,45 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#ifdef __GNUG__
-  #pragma implementation "dataobj.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #if defined(__BORLANDC__)
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #if defined(__BORLANDC__)

-  #pragma hdrstop
+    #pragma hdrstop

 #endif
 #endif

+

 #ifndef WX_PRECOMP
 #ifndef WX_PRECOMP

-#include "wx/intl.h"
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/utils.h"
+    #include "wx/wxcrtvararg.h"

 #endif
 #endif

-#include "wx/defs.h"
-
-#if defined(__WIN32__) && !defined(__GNUWIN32__) || defined(wxUSE_NORLANDER_HEADERS)

 
 

-#include "wx/log.h"

 #include "wx/dataobj.h"
 
 #include "wx/dataobj.h"
 

-#include <windows.h>
-#ifdef wxUSE_NORLANDER_HEADERS
-  #include <ole2.h>
+#if wxUSE_OLE && defined(__WIN32__) && !defined(__GNUWIN32_OLD__)
+
+#include "wx/msw/private.h"         // includes <windows.h>
+
+#ifdef __WXWINCE__
+#include <winreg.h>

 #endif
 #endif

-#include <oleauto.h>

 
 

-#ifndef __WIN32__
+// for some compilers, the entire ole2.h must be included, not only oleauto.h
+#if wxUSE_NORLANDER_HEADERS || defined(__WATCOMC__) || defined(__WXWINCE__)

   #include <ole2.h>
   #include <ole2.h>

-  #include <olestd.h>

 #endif
 
 #endif
 

-#include  "wx/msw/ole/oleutils.h"
+#include <oleauto.h>
+#include <shlobj.h>
+
+#include "wx/msw/ole/oleutils.h"
+
+#include "wx/msw/dib.h"
+
+#ifndef CFSTR_SHELLURL
+#define CFSTR_SHELLURL _T("UniformResourceLocator")
+#endif

 
 // ----------------------------------------------------------------------------
 // functions
 
 // ----------------------------------------------------------------------------
 // functions


@@ -56,11 +63,9 @@
 
 #ifdef __WXDEBUG__
     static const wxChar *GetTymedName(DWORD tymed);
 
 #ifdef __WXDEBUG__
     static const wxChar *GetTymedName(DWORD tymed);

-#endif // Debug
-
-// to be moved into wx/msw/bitmap.h
-extern size_t wxConvertBitmapToDIB(BITMAPINFO *pbi, const wxBitmap& bitmap);
-extern wxBitmap wxConvertDIBToBitmap(const BITMAPINFO *bmi);
+#else // !Debug
+    #define GetTymedName(tymed) wxEmptyString
+#endif // Debug/!Debug

 
 // ----------------------------------------------------------------------------
 // wxIEnumFORMATETC interface implementation
 
 // ----------------------------------------------------------------------------
 // wxIEnumFORMATETC interface implementation


@@ -70,9 +75,7 @@ class wxIEnumFORMATETC : public IEnumFORMATETC
 {
 public:
     wxIEnumFORMATETC(const wxDataFormat* formats, ULONG nCount);
 {
 public:
     wxIEnumFORMATETC(const wxDataFormat* formats, ULONG nCount);

-    ~wxIEnumFORMATETC() { delete [] m_formats; }
-
-    DECLARE_IUNKNOWN_METHODS;
+    virtual ~wxIEnumFORMATETC() { delete [] m_formats; }

 
     // IEnumFORMATETC
     STDMETHODIMP Next(ULONG celt, FORMATETC *rgelt, ULONG *pceltFetched);
 
     // IEnumFORMATETC
     STDMETHODIMP Next(ULONG celt, FORMATETC *rgelt, ULONG *pceltFetched);


@@ -80,10 +83,14 @@ public:
     STDMETHODIMP Reset();
     STDMETHODIMP Clone(IEnumFORMATETC **ppenum);
 
     STDMETHODIMP Reset();
     STDMETHODIMP Clone(IEnumFORMATETC **ppenum);
 

+    DECLARE_IUNKNOWN_METHODS;
+

 private:
     CLIPFORMAT *m_formats;  // formats we can provide data in
     ULONG       m_nCount,   // number of formats we support
                 m_nCurrent; // current enum position
 private:
     CLIPFORMAT *m_formats;  // formats we can provide data in
     ULONG       m_nCount,   // number of formats we support
                 m_nCurrent; // current enum position

+
+    DECLARE_NO_COPY_CLASS(wxIEnumFORMATETC)

 };
 
 // ----------------------------------------------------------------------------
 };
 
 // ----------------------------------------------------------------------------


@@ -94,14 +101,12 @@ class wxIDataObject : public IDataObject
 {
 public:
     wxIDataObject(wxDataObject *pDataObject);
 {
 public:
     wxIDataObject(wxDataObject *pDataObject);

-    ~wxIDataObject();
+    virtual ~wxIDataObject();

 
     // normally, wxDataObject controls our lifetime (i.e. we're deleted when it
 
     // normally, wxDataObject controls our lifetime (i.e. we're deleted when it

-    // is), but in some cases, the situation is inversed, that is we delete it
+    // is), but in some cases, the situation is reversed, that is we delete it

     // when this object is deleted - setting this flag enables such logic
     // when this object is deleted - setting this flag enables such logic

-    void SetDeleteFlag() { m_mustDelete = TRUE; }
-
-    DECLARE_IUNKNOWN_METHODS;
+    void SetDeleteFlag() { m_mustDelete = true; }

 
     // IDataObject
     STDMETHODIMP GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium);
 
     // IDataObject
     STDMETHODIMP GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium);


@@ -114,26 +119,14 @@ public:
     STDMETHODIMP DUnadvise(DWORD dwConnection);
     STDMETHODIMP EnumDAdvise(IEnumSTATDATA **ppenumAdvise);
 
     STDMETHODIMP DUnadvise(DWORD dwConnection);
     STDMETHODIMP EnumDAdvise(IEnumSTATDATA **ppenumAdvise);
 

+    DECLARE_IUNKNOWN_METHODS;
+

 private:
     wxDataObject *m_pDataObject;      // pointer to C++ class we belong to
 
     bool m_mustDelete;
 private:
     wxDataObject *m_pDataObject;      // pointer to C++ class we belong to
 
     bool m_mustDelete;

-};
-
-// ----------------------------------------------------------------------------
-// small helper class for getting screen DC (we're working with bitmaps and
-// DIBs here)
-// ----------------------------------------------------------------------------

 
 

-class ScreenHDC
-{
-public:
-    ScreenHDC() { m_hdc = GetDC(NULL);    }
-   ~ScreenHDC() { ReleaseDC(NULL, m_hdc); }
-    operator HDC() const { return m_hdc;  }
-
-private:
-    HDC m_hdc;
+    DECLARE_NO_COPY_CLASS(wxIDataObject)

 };
 
 // ============================================================================
 };
 
 // ============================================================================


@@ -144,9 +137,9 @@ private:
 // wxDataFormat
 // ----------------------------------------------------------------------------
 
 // wxDataFormat
 // ----------------------------------------------------------------------------
 

-void wxDataFormat::SetId(const wxChar *format)
+void wxDataFormat::SetId(const wxString& format)

 {
 {

-    m_format = ::RegisterClipboardFormat(format);
+    m_format = (wxDataFormat::NativeFormat)::RegisterClipboardFormat(format.wx_str());

     if ( !m_format )
     {
         wxLogError(_("Couldn't register clipboard format '%s'."), format);
     if ( !m_format )
     {
         wxLogError(_("Couldn't register clipboard format '%s'."), format);


@@ -162,12 +155,12 @@ wxString wxDataFormat::GetId() const
     wxCHECK_MSG( !IsStandard(), s,
                  wxT("name of predefined format cannot be retrieved") );
 
     wxCHECK_MSG( !IsStandard(), s,
                  wxT("name of predefined format cannot be retrieved") );
 

-    int len = ::GetClipboardFormatName(m_format, s.GetWriteBuf(max), max);
-    s.UngetWriteBuf();
+    int len = ::GetClipboardFormatName(m_format, wxStringBuffer(s, max), max);

 
     if ( !len )
     {
         wxLogError(_("The clipboard format '%d' doesn't exist."), m_format);
 
     if ( !len )
     {
         wxLogError(_("The clipboard format '%d' doesn't exist."), m_format);

+        return wxEmptyString;

     }
 
     return s;
     }
 
     return s;


@@ -186,7 +179,6 @@ IMPLEMENT_IUNKNOWN_METHODS(wxIEnumFORMATETC)
 
 wxIEnumFORMATETC::wxIEnumFORMATETC(const wxDataFormat *formats, ULONG nCount)
 {
 
 wxIEnumFORMATETC::wxIEnumFORMATETC(const wxDataFormat *formats, ULONG nCount)
 {

-    m_cRef = 0;

     m_nCurrent = 0;
     m_nCount = nCount;
     m_formats = new CLIPFORMAT[nCount];
     m_nCurrent = 0;
     m_nCount = nCount;
     m_formats = new CLIPFORMAT[nCount];


@@ -201,27 +193,23 @@ STDMETHODIMP wxIEnumFORMATETC::Next(ULONG      celt,
 {
     wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumFORMATETC::Next"));
 
 {
     wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumFORMATETC::Next"));
 

-    if ( celt > 1 ) {
-        // we only return 1 element at a time - mainly because I'm too lazy to
-        // implement something which you're never asked for anyhow
-        return S_FALSE;
-    }
-
-    if ( m_nCurrent < m_nCount ) {
+    ULONG numFetched = 0;
+    while (m_nCurrent < m_nCount && numFetched < celt) {

         FORMATETC format;
         format.cfFormat = m_formats[m_nCurrent++];
         format.ptd      = NULL;
         format.dwAspect = DVASPECT_CONTENT;
         format.lindex   = -1;
         format.tymed    = TYMED_HGLOBAL;
         FORMATETC format;
         format.cfFormat = m_formats[m_nCurrent++];
         format.ptd      = NULL;
         format.dwAspect = DVASPECT_CONTENT;
         format.lindex   = -1;
         format.tymed    = TYMED_HGLOBAL;

-        *rgelt = format;

 
 

-        return S_OK;
-    }
-    else {
-        // bad index
-        return S_FALSE;
+        *rgelt++ = format;
+        numFetched++;

     }
     }

+
+    if (pceltFetched)
+        *pceltFetched = numFetched;
+
+    return numFetched == celt ? S_OK : S_FALSE;

 }
 
 STDMETHODIMP wxIEnumFORMATETC::Skip(ULONG celt)
 }
 
 STDMETHODIMP wxIEnumFORMATETC::Skip(ULONG celt)


@@ -277,9 +265,8 @@ IMPLEMENT_IUNKNOWN_METHODS(wxIDataObject)
 
 wxIDataObject::wxIDataObject(wxDataObject *pDataObject)
 {
 
 wxIDataObject::wxIDataObject(wxDataObject *pDataObject)
 {

-    m_cRef = 0;

     m_pDataObject = pDataObject;
     m_pDataObject = pDataObject;

-    m_mustDelete = FALSE;
+    m_mustDelete = false;

 }
 
 wxIDataObject::~wxIDataObject()
 }
 
 wxIDataObject::~wxIDataObject()


@@ -302,7 +289,7 @@ STDMETHODIMP wxIDataObject::GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium)
 
     // for the bitmaps and metafiles we use the handles instead of global memory
     // to pass the data
 
     // for the bitmaps and metafiles we use the handles instead of global memory
     // to pass the data

-    wxDataFormat format = (wxDataFormatId)pformatetcIn->cfFormat;
+    wxDataFormat format = (wxDataFormat::NativeFormat)pformatetcIn->cfFormat;

 
     switch ( format )
     {
 
     switch ( format )
     {


@@ -310,10 +297,21 @@ STDMETHODIMP wxIDataObject::GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium)
             pmedium->tymed = TYMED_GDI;
             break;
 
             pmedium->tymed = TYMED_GDI;
             break;
 

+        case wxDF_ENHMETAFILE:
+            pmedium->tymed = TYMED_ENHMF;
+            break;
+
+#ifndef __WXWINCE__

         case wxDF_METAFILE:
         case wxDF_METAFILE:

+            pmedium->hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE,
+                                           sizeof(METAFILEPICT));
+            if ( !pmedium->hGlobal ) {
+                wxLogLastError(wxT("GlobalAlloc"));
+                return E_OUTOFMEMORY;
+            }

             pmedium->tymed = TYMED_MFPICT;
             break;
             pmedium->tymed = TYMED_MFPICT;
             break;

-
+#endif

         default:
             // alloc memory
             size_t size = m_pDataObject->GetDataSize(format);
         default:
             // alloc memory
             size_t size = m_pDataObject->GetDataSize(format);


@@ -324,15 +322,12 @@ STDMETHODIMP wxIDataObject::GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium)
                 return DV_E_FORMATETC;
             }
 
                 return DV_E_FORMATETC;
             }
 

-            if ( !format.IsStandard() ) {
-                // for custom formats, put the size with the data - alloc the
-                // space for it
-                size += sizeof(size_t);
-            }
+            // we may need extra space for the buffer size
+            size += m_pDataObject->GetBufferOffset( format );

 
             HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE, size);
             if ( hGlobal == NULL ) {
 
             HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE, size);
             if ( hGlobal == NULL ) {

-                wxLogLastError("GlobalAlloc");
+                wxLogLastError(wxT("GlobalAlloc"));

                 return E_OUTOFMEMORY;
             }
 
                 return E_OUTOFMEMORY;
             }
 


@@ -347,7 +342,7 @@ STDMETHODIMP wxIDataObject::GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium)
     hr = GetDataHere(pformatetcIn, pmedium);
     if ( FAILED(hr) ) {
         // free resources we allocated
     hr = GetDataHere(pformatetcIn, pmedium);
     if ( FAILED(hr) ) {
         // free resources we allocated

-        if ( pmedium->tymed == TYMED_HGLOBAL ) {
+        if ( pmedium->tymed & (TYMED_HGLOBAL | TYMED_MFPICT) ) {

             GlobalFree(pmedium->hGlobal);
         }
 
             GlobalFree(pmedium->hGlobal);
         }
 


@@ -370,12 +365,15 @@ STDMETHODIMP wxIDataObject::GetDataHere(FORMATETC *pformatetc,
                 return E_UNEXPECTED;
             break;
 
                 return E_UNEXPECTED;
             break;
 

-        case TYMED_MFPICT:
-            // this should be copied on bitmaps - but I don't have time for
-            // this now
-            wxFAIL_MSG(wxT("TODO - no support for metafiles in wxDataObject"));
+        case TYMED_ENHMF:
+            if ( !m_pDataObject->GetDataHere(wxDF_ENHMETAFILE,
+                                             &pmedium->hEnhMetaFile) )
+                return E_UNEXPECTED;

             break;
 
             break;
 

+        case TYMED_MFPICT:
+            // fall through - we pass METAFILEPICT through HGLOBAL
+

         case TYMED_HGLOBAL:
             {
                 // copy data
         case TYMED_HGLOBAL:
             {
                 // copy data


@@ -386,14 +384,16 @@ STDMETHODIMP wxIDataObject::GetDataHere(FORMATETC *pformatetc,
                     return E_OUTOFMEMORY;
                 }
 
                     return E_OUTOFMEMORY;
                 }
 

-                if ( !wxDataFormat(pformatetc->cfFormat).IsStandard() ) {
-                    // for custom formats, put the size with the data
-                    size_t *p = (size_t *)pBuf;
-                    *p++ = GlobalSize(hGlobal);
-                    pBuf = p;
-                }
-

                 wxDataFormat format = pformatetc->cfFormat;
                 wxDataFormat format = pformatetc->cfFormat;

+
+                // possibly put the size in the beginning of the buffer
+                pBuf = m_pDataObject->SetSizeInBuffer
+                                      (
+                                        pBuf,
+                                        ::GlobalSize(hGlobal),
+                                        format
+                                      );
+

                 if ( !m_pDataObject->GetDataHere(format, pBuf) )
                     return E_UNEXPECTED;
 
                 if ( !m_pDataObject->GetDataHere(format, pBuf) )
                     return E_UNEXPECTED;
 


@@ -408,6 +408,7 @@ STDMETHODIMP wxIDataObject::GetDataHere(FORMATETC *pformatetc,
     return S_OK;
 }
 
     return S_OK;
 }
 

+

 // set data functions
 STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
                                     STGMEDIUM *pmedium,
 // set data functions
 STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
                                     STGMEDIUM *pmedium,


@@ -421,18 +422,31 @@ STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
             m_pDataObject->SetData(wxDF_BITMAP, 0, &pmedium->hBitmap);
             break;
 
             m_pDataObject->SetData(wxDF_BITMAP, 0, &pmedium->hBitmap);
             break;
 

-        case TYMED_MFPICT:
-            // this should be copied on bitmaps - but I don't have time for
-            // this now
-            wxFAIL_MSG(wxT("TODO - no support for metafiles in wxDataObject"));
+        case TYMED_ENHMF:
+            m_pDataObject->SetData(wxDF_ENHMETAFILE, 0, &pmedium->hEnhMetaFile);

             break;
 
             break;
 

+        case TYMED_MFPICT:
+            // fall through - we pass METAFILEPICT through HGLOBAL

         case TYMED_HGLOBAL:
             {
         case TYMED_HGLOBAL:
             {

+                wxDataFormat format = pformatetc->cfFormat;
+
+                // this is quite weird, but for file drag and drop, explorer
+                // calls our SetData() with the formats we do *not* support!
+                //
+                // as we can't fix this bug in explorer (it's a bug because it
+                // should only use formats returned by EnumFormatEtc), do the
+                // check here
+                if ( !m_pDataObject->IsSupported(format, wxDataObject::Set) ) {
+                    // go away!
+                    return DV_E_FORMATETC;
+                }
+

                 // copy data
                 // copy data

-                void *pBuf = GlobalLock(pmedium->hGlobal);
+                const void *pBuf = GlobalLock(pmedium->hGlobal);

                 if ( pBuf == NULL ) {
                 if ( pBuf == NULL ) {

-                    wxLogLastError("GlobalLock");
+                    wxLogLastError(wxT("GlobalLock"));

 
                     return E_OUTOFMEMORY;
                 }
 
                     return E_OUTOFMEMORY;
                 }


@@ -443,34 +457,48 @@ STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
                 // synthetise it for known formats and we suppose that all data
                 // in custom formats starts with a DWORD containing the size
                 size_t size;
                 // synthetise it for known formats and we suppose that all data
                 // in custom formats starts with a DWORD containing the size
                 size_t size;

-                switch ( pformatetc->cfFormat )
+                switch ( format )

                 {
                     case CF_TEXT:
                     case CF_OEMTEXT:
                         size = strlen((const char *)pBuf);
                         break;
                 {
                     case CF_TEXT:
                     case CF_OEMTEXT:
                         size = strlen((const char *)pBuf);
                         break;

-
+#if !(defined(__BORLANDC__) && (__BORLANDC__ < 0x500))

                     case CF_UNICODETEXT:
                     case CF_UNICODETEXT:

-                        size = wcslen((const wchar_t *)pBuf);
+#if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) ) \
+    || ( defined(__MWERKS__) && defined(__WXMSW__) )
+                        size = std::wcslen((const wchar_t *)pBuf) * sizeof(wchar_t);
+#else
+                        size = wxWcslen((const wchar_t *)pBuf) * sizeof(wchar_t);
+#endif

                         break;
                         break;

-
+#endif

                     case CF_BITMAP:
                     case CF_BITMAP:

+#ifndef __WXWINCE__

                     case CF_HDROP:
                         // these formats don't use size at all, anyhow (but
                         // pass data by handle, which is always a single DWORD)
                         size = 0;
                         break;
                     case CF_HDROP:
                         // these formats don't use size at all, anyhow (but
                         // pass data by handle, which is always a single DWORD)
                         size = 0;
                         break;

+#endif
+
+                    case CF_DIB:
+                        // the handler will calculate size itself (it's too
+                        // complicated to do it here)
+                        size = 0;
+                        break;

 
 

+#ifndef __WXWINCE__
+                    case CF_METAFILEPICT:
+                        size = sizeof(METAFILEPICT);
+                        break;
+#endif

                     default:
                     default:

-                        {
-                            // we suppose that the size precedes the data
-                            size_t *p = (size_t *)pBuf;
-                            size = *p++;
-                            pBuf = p;
-                        }
+                        pBuf = m_pDataObject->
+                                    GetSizeFromBuffer(pBuf, &size, format);
+                        size -= m_pDataObject->GetBufferOffset(format);

                 }
 
                 }
 

-                wxDataFormat format = pformatetc->cfFormat;

                 bool ok = m_pDataObject->SetData(format, size, pBuf);
 
                 GlobalUnlock(pmedium->hGlobal);
                 bool ok = m_pDataObject->SetData(format, size, pBuf);
 
                 GlobalUnlock(pmedium->hGlobal);


@@ -486,11 +514,21 @@ STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
     }
 
     if ( fRelease ) {
     }
 
     if ( fRelease ) {

-        // we own the medium, so we must release it - but do *not* free the
-        // bitmap handle fi we have it because we have copied it elsewhere
-        if ( pmedium->tymed == TYMED_GDI )
+        // we own the medium, so we must release it - but do *not* free any
+        // data we pass by handle because we have copied it elsewhere
+        switch ( pmedium->tymed )

         {
         {

-            pmedium->hBitmap = 0;
+            case TYMED_GDI:
+                pmedium->hBitmap = 0;
+                break;
+
+            case TYMED_MFPICT:
+                pmedium->hMetaFilePict = 0;
+                break;
+
+            case TYMED_ENHMF:
+                pmedium->hEnhMetaFile = 0;
+                break;

         }
 
         ReleaseStgMedium(pmedium);
         }
 
         ReleaseStgMedium(pmedium);


@@ -513,7 +551,7 @@ STDMETHODIMP wxIDataObject::QueryGetData(FORMATETC *pformatetc)
     // the only one allowed by current COM implementation
     if ( pformatetc->lindex != -1 ) {
         wxLogTrace(wxTRACE_OleCalls,
     // the only one allowed by current COM implementation
     if ( pformatetc->lindex != -1 ) {
         wxLogTrace(wxTRACE_OleCalls,

-                   wxT("wxIDataObject::QueryGetData: bad lindex %d"),
+                   wxT("wxIDataObject::QueryGetData: bad lindex %ld"),

                    pformatetc->lindex);
 
         return DV_E_LINDEX;
                    pformatetc->lindex);
 
         return DV_E_LINDEX;


@@ -522,7 +560,7 @@ STDMETHODIMP wxIDataObject::QueryGetData(FORMATETC *pformatetc)
     // we don't support anything other (THUMBNAIL, ICON, DOCPRINT...)
     if ( pformatetc->dwAspect != DVASPECT_CONTENT ) {
         wxLogTrace(wxTRACE_OleCalls,
     // we don't support anything other (THUMBNAIL, ICON, DOCPRINT...)
     if ( pformatetc->dwAspect != DVASPECT_CONTENT ) {
         wxLogTrace(wxTRACE_OleCalls,

-                   wxT("wxIDataObject::QueryGetData: bad dwAspect %d"),
+                   wxT("wxIDataObject::QueryGetData: bad dwAspect %ld"),

                    pformatetc->dwAspect);
 
         return DV_E_DVASPECT;
                    pformatetc->dwAspect);
 
         return DV_E_DVASPECT;


@@ -531,15 +569,13 @@ STDMETHODIMP wxIDataObject::QueryGetData(FORMATETC *pformatetc)
     // and now check the type of data requested
     wxDataFormat format = pformatetc->cfFormat;
     if ( m_pDataObject->IsSupportedFormat(format) ) {
     // and now check the type of data requested
     wxDataFormat format = pformatetc->cfFormat;
     if ( m_pDataObject->IsSupportedFormat(format) ) {

-#ifdef __WXDEBUG__

         wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::QueryGetData: %s ok"),
         wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::QueryGetData: %s ok"),

-                   wxDataObject::GetFormatName(format));
-#endif // Debug
+                   wxGetFormatName(format));

     }
     else {
         wxLogTrace(wxTRACE_OleCalls,
                    wxT("wxIDataObject::QueryGetData: %s unsupported"),
     }
     else {
         wxLogTrace(wxTRACE_OleCalls,
                    wxT("wxIDataObject::QueryGetData: %s unsupported"),

-                   wxDataObject::GetFormatName(format));
+                   wxGetFormatName(format));

 
         return DV_E_FORMATETC;
     }
 
         return DV_E_FORMATETC;
     }


@@ -549,13 +585,11 @@ STDMETHODIMP wxIDataObject::QueryGetData(FORMATETC *pformatetc)
     if ( (format == wxDF_BITMAP && !(tymed & TYMED_GDI)) &&
          !(tymed & TYMED_HGLOBAL) ) {
         // it's not what we're waiting for
     if ( (format == wxDF_BITMAP && !(tymed & TYMED_GDI)) &&
          !(tymed & TYMED_HGLOBAL) ) {
         // it's not what we're waiting for

-#ifdef __WXDEBUG__

         wxLogTrace(wxTRACE_OleCalls,
                    wxT("wxIDataObject::QueryGetData: %s != %s"),
                    GetTymedName(tymed),
                    GetTymedName(format == wxDF_BITMAP ? TYMED_GDI
                                                       : TYMED_HGLOBAL));
         wxLogTrace(wxTRACE_OleCalls,
                    wxT("wxIDataObject::QueryGetData: %s != %s"),
                    GetTymedName(tymed),
                    GetTymedName(format == wxDF_BITMAP ? TYMED_GDI
                                                       : TYMED_HGLOBAL));

-#endif // Debug

 
         return DV_E_TYMED;
     }
 
         return DV_E_TYMED;
     }


@@ -563,7 +597,7 @@ STDMETHODIMP wxIDataObject::QueryGetData(FORMATETC *pformatetc)
     return S_OK;
 }
 
     return S_OK;
 }
 

-STDMETHODIMP wxIDataObject::GetCanonicalFormatEtc(FORMATETC *pFormatetcIn,
+STDMETHODIMP wxIDataObject::GetCanonicalFormatEtc(FORMATETC *WXUNUSED(pFormatetcIn),

                                                   FORMATETC *pFormatetcOut)
 {
     wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::GetCanonicalFormatEtc"));
                                                   FORMATETC *pFormatetcOut)
 {
     wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::GetCanonicalFormatEtc"));


@@ -583,8 +617,9 @@ STDMETHODIMP wxIDataObject::EnumFormatEtc(DWORD dwDir,
     wxDataObject::Direction dir = dwDir == DATADIR_GET ? wxDataObject::Get
                                                        : wxDataObject::Set;
 
     wxDataObject::Direction dir = dwDir == DATADIR_GET ? wxDataObject::Get
                                                        : wxDataObject::Set;
 

-    size_t nFormatCount = m_pDataObject->GetFormatCount(dir);
-    wxDataFormat format, *formats;
+    ULONG nFormatCount = wx_truncate_cast(ULONG, m_pDataObject->GetFormatCount(dir));
+    wxDataFormat format;
+    wxDataFormat *formats;

     formats = nFormatCount == 1 ? &format : new wxDataFormat[nFormatCount];
     m_pDataObject->GetAllFormats(formats, dir);
 
     formats = nFormatCount == 1 ? &format : new wxDataFormat[nFormatCount];
     m_pDataObject->GetAllFormats(formats, dir);
 


@@ -603,20 +638,20 @@ STDMETHODIMP wxIDataObject::EnumFormatEtc(DWORD dwDir,
 // advise sink functions (not implemented)
 // ----------------------------------------------------------------------------
 
 // advise sink functions (not implemented)
 // ----------------------------------------------------------------------------
 

-STDMETHODIMP wxIDataObject::DAdvise(FORMATETC   *pformatetc,
-                                    DWORD        advf,
-                                    IAdviseSink *pAdvSink,
-                                    DWORD       *pdwConnection)
+STDMETHODIMP wxIDataObject::DAdvise(FORMATETC   *WXUNUSED(pformatetc),
+                                    DWORD        WXUNUSED(advf),
+                                    IAdviseSink *WXUNUSED(pAdvSink),
+                                    DWORD       *WXUNUSED(pdwConnection))

 {
   return OLE_E_ADVISENOTSUPPORTED;
 }
 
 {
   return OLE_E_ADVISENOTSUPPORTED;
 }
 

-STDMETHODIMP wxIDataObject::DUnadvise(DWORD dwConnection)
+STDMETHODIMP wxIDataObject::DUnadvise(DWORD WXUNUSED(dwConnection))

 {
   return OLE_E_ADVISENOTSUPPORTED;
 }
 
 {
   return OLE_E_ADVISENOTSUPPORTED;
 }
 

-STDMETHODIMP wxIDataObject::EnumDAdvise(IEnumSTATDATA **ppenumAdvise)
+STDMETHODIMP wxIDataObject::EnumDAdvise(IEnumSTATDATA **WXUNUSED(ppenumAdvise))

 {
   return OLE_E_ADVISENOTSUPPORTED;
 }
 {
   return OLE_E_ADVISENOTSUPPORTED;
 }


@@ -645,91 +680,151 @@ void wxDataObject::SetAutoDelete()
     m_pIDataObject = NULL;
 }
 
     m_pIDataObject = NULL;
 }
 

-bool wxDataObject::IsSupportedFormat(const wxDataFormat& format) const
+size_t wxDataObject::GetBufferOffset(const wxDataFormat& format )

 {
 {

-    size_t nFormatCount = GetFormatCount();
-    if ( nFormatCount == 1 ) {
-        return format == GetPreferredFormat();
+    // if we prepend the size of the data to the buffer itself, account for it
+    return NeedsVerbatimData(format) ? 0 : sizeof(size_t);
+}
+
+const void* wxDataObject::GetSizeFromBuffer( const void* buffer, size_t* size,
+                                               const wxDataFormat& format )
+{
+    // hack: the third parameter is declared non-const in Wine's headers so
+    // cast away the const
+    size_t realsz = ::HeapSize(::GetProcessHeap(), 0,
+                               wx_const_cast(void*, buffer));
+    if ( realsz == (size_t)-1 )
+    {
+        // note that HeapSize() does not set last error
+        wxLogApiError(wxT("HeapSize"), 0);
+        return NULL;

     }
     }

-    else {
-        wxDataFormat *formats = new wxDataFormat[nFormatCount];
-        GetAllFormats(formats);

 
 

-        size_t n;
-        for ( n = 0; n < nFormatCount; n++ ) {
-            if ( formats[n] == format )
-                break;
-        }
+    *size = realsz;

 
 

-        delete [] formats;
+    // check if this data has its size prepended (as it was by default for wx
+    // programs prior 2.6.3):
+    size_t *p = (size_t *)buffer;
+    if ( *p == realsz )
+    {
+        if ( NeedsVerbatimData(format) )
+            wxLogDebug(wxT("Apparent data format mismatch: size not needed"));

 
 

-        // found?
-        return n < nFormatCount;
+        p++; // this data has its size prepended; skip first DWORD

     }
     }

+
+    return p;

 }
 
 }
 

-const char *wxDataObject::GetFormatName(wxDataFormat format)
+void* wxDataObject::SetSizeInBuffer( void* buffer, size_t size,
+                                      const wxDataFormat& format )

 {
 {

-  // case 'xxx' is not a valid value for switch of enum 'wxDataFormat'
-  #ifdef __VISUALC__
-    #pragma warning(disable:4063)
-  #endif // VC++
-
-  static char s_szBuf[128];
-  switch ( format ) {
-    case CF_TEXT:         return "CF_TEXT";
-    case CF_BITMAP:       return "CF_BITMAP";
-    case CF_METAFILEPICT: return "CF_METAFILEPICT";
-    case CF_SYLK:         return "CF_SYLK";
-    case CF_DIF:          return "CF_DIF";
-    case CF_TIFF:         return "CF_TIFF";
-    case CF_OEMTEXT:      return "CF_OEMTEXT";
-    case CF_DIB:          return "CF_DIB";
-    case CF_PALETTE:      return "CF_PALETTE";
-    case CF_PENDATA:      return "CF_PENDATA";
-    case CF_RIFF:         return "CF_RIFF";
-    case CF_WAVE:         return "CF_WAVE";
-    case CF_UNICODETEXT:  return "CF_UNICODETEXT";
-    case CF_ENHMETAFILE:  return "CF_ENHMETAFILE";
-    case CF_HDROP:        return "CF_HDROP";
-    case CF_LOCALE:       return "CF_LOCALE";
-    default:
-      sprintf(s_szBuf, "clipboard format 0x%x (unknown)", format);
-      return s_szBuf;
-  }
-
-  #ifdef __VISUALC__
-    #pragma warning(default:4063)
-  #endif // VC++
+    size_t* p = (size_t *)buffer;
+    if ( !NeedsVerbatimData(format) )
+    {
+        // prepend the size to the data and skip it
+        *p++ = size;
+    }
+
+    return p;

 }
 
 }
 

+#ifdef __WXDEBUG__
+
+const wxChar *wxDataObject::GetFormatName(wxDataFormat format)
+{
+    // case 'xxx' is not a valid value for switch of enum 'wxDataFormat'
+    #ifdef __VISUALC__
+        #pragma warning(disable:4063)
+    #endif // VC++
+
+    static wxChar s_szBuf[256];
+    switch ( format ) {
+        case CF_TEXT:         return wxT("CF_TEXT");
+        case CF_BITMAP:       return wxT("CF_BITMAP");
+        case CF_SYLK:         return wxT("CF_SYLK");
+        case CF_DIF:          return wxT("CF_DIF");
+        case CF_TIFF:         return wxT("CF_TIFF");
+        case CF_OEMTEXT:      return wxT("CF_OEMTEXT");
+        case CF_DIB:          return wxT("CF_DIB");
+        case CF_PALETTE:      return wxT("CF_PALETTE");
+        case CF_PENDATA:      return wxT("CF_PENDATA");
+        case CF_RIFF:         return wxT("CF_RIFF");
+        case CF_WAVE:         return wxT("CF_WAVE");
+        case CF_UNICODETEXT:  return wxT("CF_UNICODETEXT");
+#ifndef __WXWINCE__
+        case CF_METAFILEPICT: return wxT("CF_METAFILEPICT");
+        case CF_ENHMETAFILE:  return wxT("CF_ENHMETAFILE");
+        case CF_LOCALE:       return wxT("CF_LOCALE");
+        case CF_HDROP:        return wxT("CF_HDROP");
+#endif
+
+        default:
+            if ( !::GetClipboardFormatName(format, s_szBuf, WXSIZEOF(s_szBuf)) )
+            {
+                // it must be a new predefined format we don't know the name of
+                wxSprintf(s_szBuf, wxT("unknown CF (0x%04x)"), format.GetFormatId());
+            }
+
+            return s_szBuf;
+    }
+
+    #ifdef __VISUALC__
+        #pragma warning(default:4063)
+    #endif // VC++
+}
+
+#endif // Debug
+

 // ----------------------------------------------------------------------------
 // wxBitmapDataObject supports CF_DIB format
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 // wxBitmapDataObject supports CF_DIB format
 // ----------------------------------------------------------------------------
 

+// TODO: support CF_DIB under Windows CE as well
+

 size_t wxBitmapDataObject::GetDataSize() const
 {
 size_t wxBitmapDataObject::GetDataSize() const
 {

-    return wxConvertBitmapToDIB(NULL, GetBitmap());
+#if wxUSE_WXDIB && !defined(__WXWINCE__)
+    return wxDIB::ConvertFromBitmap(NULL, GetHbitmapOf(GetBitmap()));
+#else
+    return 0;
+#endif

 }
 
 bool wxBitmapDataObject::GetDataHere(void *buf) const
 {
 }
 
 bool wxBitmapDataObject::GetDataHere(void *buf) const
 {

-    return wxConvertBitmapToDIB((BITMAPINFO *)buf, GetBitmap()) != 0;
+#if wxUSE_WXDIB && !defined(__WXWINCE__)
+    BITMAPINFO * const pbi = (BITMAPINFO *)buf;
+
+    return wxDIB::ConvertFromBitmap(pbi, GetHbitmapOf(GetBitmap())) != 0;
+#else
+    wxUnusedVar(buf);
+    return false;
+#endif

 }
 
 }
 

-bool wxBitmapDataObject::SetData(size_t len, const void *buf)
+bool wxBitmapDataObject::SetData(size_t WXUNUSED(len), const void *buf)

 {
 {

-    wxBitmap bitmap(wxConvertDIBToBitmap((const BITMAPINFO *)buf));
+#if wxUSE_WXDIB && !defined(__WXWINCE__)
+    const BITMAPINFO * const pbmi = (const BITMAPINFO *)buf;

 
 

-    if ( !bitmap.Ok() ) {
-        wxFAIL_MSG(wxT("pasting/dropping invalid bitmap"));
+    HBITMAP hbmp = wxDIB::ConvertToBitmap(pbmi);

 
 

-        return FALSE;
-    }
+    wxCHECK_MSG( hbmp, FALSE, wxT("pasting/dropping invalid bitmap") );
+
+    const BITMAPINFOHEADER * const pbmih = &pbmi->bmiHeader;
+    wxBitmap bitmap(pbmih->biWidth, pbmih->biHeight, pbmih->biBitCount);
+    bitmap.SetHBITMAP((WXHBITMAP)hbmp);
+
+    // TODO: create wxPalette if the bitmap has any

 
     SetBitmap(bitmap);
 
 
     SetBitmap(bitmap);
 

-    return TRUE;
+    return true;
+#else
+    wxUnusedVar(buf);
+    return false;
+#endif

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -751,17 +846,17 @@ bool wxBitmapDataObject2::GetDataHere(void *pBuf) const
     // we put a bitmap handle into pBuf
     *(WXHBITMAP *)pBuf = GetBitmap().GetHBITMAP();
 
     // we put a bitmap handle into pBuf
     *(WXHBITMAP *)pBuf = GetBitmap().GetHBITMAP();
 

-    return TRUE;
+    return true;

 }
 
 }
 

-bool wxBitmapDataObject2::SetData(size_t len, const void *pBuf)
+bool wxBitmapDataObject2::SetData(size_t WXUNUSED(len), const void *pBuf)

 {
     HBITMAP hbmp = *(HBITMAP *)pBuf;
 
     BITMAP bmp;
     if ( !GetObject(hbmp, sizeof(BITMAP), &bmp) )
     {
 {
     HBITMAP hbmp = *(HBITMAP *)pBuf;
 
     BITMAP bmp;
     if ( !GetObject(hbmp, sizeof(BITMAP), &bmp) )
     {

-        wxLogLastError("GetObject(HBITMAP)");
+        wxLogLastError(wxT("GetObject(HBITMAP)"));

     }
 
     wxBitmap bitmap(bmp.bmWidth, bmp.bmHeight, bmp.bmPlanes);
     }
 
     wxBitmap bitmap(bmp.bmWidth, bmp.bmHeight, bmp.bmPlanes);


@@ -770,12 +865,12 @@ bool wxBitmapDataObject2::SetData(size_t len, const void *pBuf)
     if ( !bitmap.Ok() ) {
         wxFAIL_MSG(wxT("pasting/dropping invalid bitmap"));
 
     if ( !bitmap.Ok() ) {
         wxFAIL_MSG(wxT("pasting/dropping invalid bitmap"));
 

-        return FALSE;
+        return false;

     }
 
     SetBitmap(bitmap);
 
     }
 
     SetBitmap(bitmap);
 

-    return TRUE;
+    return true;

 }
 
 #if 0
 }
 
 #if 0


@@ -796,7 +891,7 @@ size_t wxBitmapDataObject::GetDataSize(const wxDataFormat& format) const
         if ( !GetDIBits(hdc, (HBITMAP)m_bitmap.GetHBITMAP(), 0, 0,
                         NULL, &bi, DIB_RGB_COLORS) )
         {
         if ( !GetDIBits(hdc, (HBITMAP)m_bitmap.GetHBITMAP(), 0, 0,
                         NULL, &bi, DIB_RGB_COLORS) )
         {

-            wxLogLastError("GetDIBits(NULL)");
+            wxLogLastError(wxT("GetDIBits(NULL)"));

 
             return 0;
         }
 
             return 0;
         }


@@ -829,7 +924,7 @@ bool wxBitmapDataObject::GetDataHere(const wxDataFormat& format,
         BITMAPINFO *pbi = (BITMAPINFO *)pBuf;
         if ( !GetDIBits(hdc, hbmp, 0, 0, NULL, pbi, DIB_RGB_COLORS) )
         {
         BITMAPINFO *pbi = (BITMAPINFO *)pBuf;
         if ( !GetDIBits(hdc, hbmp, 0, 0, NULL, pbi, DIB_RGB_COLORS) )
         {

-            wxLogLastError("GetDIBits(NULL)");
+            wxLogLastError(wxT("GetDIBits(NULL)"));

 
             return 0;
         }
 
             return 0;
         }


@@ -838,9 +933,9 @@ bool wxBitmapDataObject::GetDataHere(const wxDataFormat& format,
         if ( !GetDIBits(hdc, hbmp, 0, pbi->bmiHeader.biHeight, pbi + 1,
                         pbi, DIB_RGB_COLORS) )
         {
         if ( !GetDIBits(hdc, hbmp, 0, pbi->bmiHeader.biHeight, pbi + 1,
                         pbi, DIB_RGB_COLORS) )
         {

-            wxLogLastError("GetDIBits");
+            wxLogLastError(wxT("GetDIBits"));

 
 

-            return FALSE;
+            return false;

         }
     }
     else // CF_BITMAP
         }
     }
     else // CF_BITMAP


@@ -849,7 +944,7 @@ bool wxBitmapDataObject::GetDataHere(const wxDataFormat& format,
         *(HBITMAP *)pBuf = hbmp;
     }
 
         *(HBITMAP *)pBuf = hbmp;
     }
 

-    return TRUE;
+    return true;

 }
 
 bool wxBitmapDataObject::SetData(const wxDataFormat& format,
 }
 
 bool wxBitmapDataObject::SetData(const wxDataFormat& format,


@@ -868,7 +963,7 @@ bool wxBitmapDataObject::SetData(const wxDataFormat& format,
                               pbmi + 1, pbmi, DIB_RGB_COLORS);
         if ( !hbmp )
         {
                               pbmi + 1, pbmi, DIB_RGB_COLORS);
         if ( !hbmp )
         {

-            wxLogLastError("CreateDIBitmap");
+            wxLogLastError(wxT("CreateDIBitmap"));

         }
 
         m_bitmap.SetWidth(pbmih->biWidth);
         }
 
         m_bitmap.SetWidth(pbmih->biWidth);


@@ -882,7 +977,7 @@ bool wxBitmapDataObject::SetData(const wxDataFormat& format,
         BITMAP bmp;
         if ( !GetObject(hbmp, sizeof(BITMAP), &bmp) )
         {
         BITMAP bmp;
         if ( !GetObject(hbmp, sizeof(BITMAP), &bmp) )
         {

-            wxLogLastError("GetObject(HBITMAP)");
+            wxLogLastError(wxT("GetObject(HBITMAP)"));

         }
 
         m_bitmap.SetWidth(bmp.bmWidth);
         }
 
         m_bitmap.SetWidth(bmp.bmWidth);


@@ -894,7 +989,7 @@ bool wxBitmapDataObject::SetData(const wxDataFormat& format,
 
     wxASSERT_MSG( m_bitmap.Ok(), wxT("pasting invalid bitmap") );
 
 
     wxASSERT_MSG( m_bitmap.Ok(), wxT("pasting invalid bitmap") );
 

-    return TRUE;
+    return true;

 }
 
 #endif // 0
 }
 
 #endif // 0


@@ -903,8 +998,10 @@ bool wxBitmapDataObject::SetData(const wxDataFormat& format,
 // wxFileDataObject
 // ----------------------------------------------------------------------------
 
 // wxFileDataObject
 // ----------------------------------------------------------------------------
 

-bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *pData)
+bool wxFileDataObject::SetData(size_t WXUNUSED(size),
+                               const void *WXUNUSED_IN_WINCE(pData))

 {
 {

+#ifndef __WXWINCE__

     m_filenames.Empty();
 
     // the documentation states that the first member of DROPFILES structure is
     m_filenames.Empty();
 
     // the documentation states that the first member of DROPFILES structure is


@@ -918,6 +1015,8 @@ bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *pData)
     // get number of files (magic value -1)
     UINT nFiles = ::DragQueryFile(hdrop, (unsigned)-1, NULL, 0u);
 
     // get number of files (magic value -1)
     UINT nFiles = ::DragQueryFile(hdrop, (unsigned)-1, NULL, 0u);
 

+    wxCHECK_MSG ( nFiles != (UINT)-1, FALSE, wxT("wrong HDROP handle") );
+

     // for each file get the length, allocate memory and then get the name
     wxString str;
     UINT len, n;
     // for each file get the length, allocate memory and then get the name
     wxString str;
     UINT len, n;


@@ -925,92 +1024,250 @@ bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *pData)
         // +1 for terminating NUL
         len = ::DragQueryFile(hdrop, n, NULL, 0) + 1;
 
         // +1 for terminating NUL
         len = ::DragQueryFile(hdrop, n, NULL, 0) + 1;
 

-        UINT len2 = ::DragQueryFile(hdrop, n, str.GetWriteBuf(len), len);
-        str.UngetWriteBuf();
+        UINT len2 = ::DragQueryFile(hdrop, n, wxStringBuffer(str, len), len);

         m_filenames.Add(str);
 
         if ( len2 != len - 1 ) {
         m_filenames.Add(str);
 
         if ( len2 != len - 1 ) {

-            wxLogDebug(wxT("In wxFileDropTarget::OnDrop DragQueryFile returned"
-                           " %d characters, %d expected."), len2, len - 1);
+            wxLogDebug(wxT("In wxFileDropTarget::OnDrop DragQueryFile returned\
+ %d characters, %d expected."), len2, len - 1);

         }
     }
 
         }
     }
 

-    return TRUE;
+    return true;
+#else
+    return false;
+#endif

 }
 
 }
 

-// ----------------------------------------------------------------------------
-// private functions
-// ----------------------------------------------------------------------------
+void wxFileDataObject::AddFile(const wxString& file)
+{
+    // just add file to filenames array
+    // all useful data (such as DROPFILES struct) will be
+    // created later as necessary
+    m_filenames.Add(file);
+}
+
+size_t wxFileDataObject::GetDataSize() const
+{
+#ifndef __WXWINCE__
+    // size returned will be the size of the DROPFILES structure, plus the list
+    // of filesnames (null byte separated), plus a double null at the end
+
+    // if no filenames in list, size is 0
+    if ( m_filenames.empty() )
+        return 0;
+
+#if wxUSE_UNICODE_MSLU
+    size_t sizeOfChar;
+    if ( wxGetOsVersion() == wxOS_WINDOWS_9X )
+    {
+        // Win9x always uses ANSI file names and MSLU doesn't help with this
+        sizeOfChar = sizeof(char);
+    }
+    else
+    {
+        sizeOfChar = sizeof(wxChar);
+    }
+#else // !wxUSE_UNICODE_MSLU
+    static const size_t sizeOfChar = sizeof(wxChar);
+#endif // wxUSE_UNICODE_MSLU/!wxUSE_UNICODE_MSLU
+
+    // inital size of DROPFILES struct + null byte
+    size_t sz = sizeof(DROPFILES) + sizeOfChar;

 
 

-// otherwise VC++ would give here:
-//  "local variable 'bi' may be used without having been initialized"
-// even though in fact it may not
-#ifdef __VISUALC__
-    #pragma warning(disable:4701)
-#endif // __VISUALC__
+    const size_t count = m_filenames.size();
+    for ( size_t i = 0; i < count; i++ )
+    {
+        // add filename length plus null byte
+        size_t len;
+#if wxUSE_UNICODE_MSLU
+        if ( sizeOfChar == sizeof(char) )
+            len = strlen(m_filenames[i].mb_str(*wxConvFileName));
+        else
+#endif // wxUSE_UNICODE_MSLU
+            len = m_filenames[i].length();
+
+        sz += (len + 1) * sizeOfChar;
+    }
+
+    return sz;
+#else
+    return 0;
+#endif
+}

 
 

-size_t wxConvertBitmapToDIB(BITMAPINFO *pbi, const wxBitmap& bitmap)
+bool wxFileDataObject::GetDataHere(void *WXUNUSED_IN_WINCE(pData)) const

 {
 {

-    // shouldn't be selected into a DC or GetDIBits() would fail
-    wxASSERT_MSG( !bitmap.GetSelectedInto(),
-                  wxT("can't copy bitmap selected into wxMemoryDC") );
+#ifndef __WXWINCE__
+    // pData points to an externally allocated memory block
+    // created using the size returned by GetDataSize()
+
+    // if pData is NULL, or there are no files, return
+    if ( !pData || m_filenames.empty() )
+        return false;
+
+    // convert data pointer to a DROPFILES struct pointer
+    LPDROPFILES pDrop = (LPDROPFILES) pData;
+
+    // initialize DROPFILES struct
+    pDrop->pFiles = sizeof(DROPFILES);
+    pDrop->fNC = FALSE;                 // not non-client coords
+#if wxUSE_UNICODE_MSLU
+    pDrop->fWide = wxGetOsVersion() != wxOS_WINDOWS_9X ? TRUE : FALSE;
+#else
+    pDrop->fWide = wxUSE_UNICODE;
+#endif

 
 

-    HBITMAP hbmp = (HBITMAP)bitmap.GetHBITMAP();
+    const size_t sizeOfChar = pDrop->fWide ? sizeof(wchar_t) : sizeof(char);

 
 

-    BITMAPINFO bi;
+    // set start of filenames list (null separated)
+    BYTE *pbuf = (BYTE *)(pDrop + 1);

 
 

-    // first get the info
-    ScreenHDC hdc;
-    if ( !GetDIBits(hdc, hbmp, 0, 0, NULL, pbi ? pbi : &bi, DIB_RGB_COLORS) )
+    const size_t count = m_filenames.size();
+    for ( size_t i = 0; i < count; i++ )

     {
     {

-        wxLogLastError("GetDIBits(NULL)");
+        // copy filename to pbuf and add null terminator
+        size_t len;
+#if wxUSE_UNICODE_MSLU
+        if ( sizeOfChar == sizeof(char) )
+        {
+            wxCharBuffer buf(m_filenames[i].mb_str(*wxConvFileName));
+            len = strlen(buf);
+            memcpy(pbuf, buf, len*sizeOfChar);
+        }
+        else
+#endif // wxUSE_UNICODE_MSLU
+        {
+            len = m_filenames[i].length();
+            memcpy(pbuf, m_filenames[i].c_str(), len*sizeOfChar);
+        }
+
+        pbuf += len*sizeOfChar;
+
+        memset(pbuf, 0, sizeOfChar);
+        pbuf += sizeOfChar;
+    }
+
+    // add final null terminator
+    memset(pbuf, 0, sizeOfChar);
+
+    return true;
+#else
+    return false;
+#endif
+}
+
+// ----------------------------------------------------------------------------
+// wxURLDataObject
+// ----------------------------------------------------------------------------
+
+// Work around bug in Wine headers
+#if defined(__WINE__) && defined(CFSTR_SHELLURL) && wxUSE_UNICODE
+#undef CFSTR_SHELLURL
+#define CFSTR_SHELLURL _T("CFSTR_SHELLURL")
+#endif
+
+class CFSTR_SHELLURLDataObject : public wxCustomDataObject
+{
+public:
+    CFSTR_SHELLURLDataObject() : wxCustomDataObject(CFSTR_SHELLURL) {}

 
 

+    virtual size_t GetBufferOffset( const wxDataFormat& WXUNUSED(format) )
+    {

         return 0;
     }
 
         return 0;
     }
 

-    if ( !pbi )
+    virtual const void* GetSizeFromBuffer( const void* buffer, size_t* size,
+                                           const wxDataFormat& WXUNUSED(format) )

     {
     {

-        // we were only asked for size needed for the buffer, not to actually
-        // copy the data
-        return sizeof(BITMAPINFO) + bi.bmiHeader.biSizeImage;
+        // CFSTR_SHELLURL is _always_ ANSI text
+        *size = strlen( (const char*)buffer );
+
+        return buffer;

     }
 
     }
 

-    // and now copy the bits
-    if ( !GetDIBits(hdc, hbmp, 0, pbi->bmiHeader.biHeight, pbi + 1,
-                    pbi, DIB_RGB_COLORS) )
+    virtual void* SetSizeInBuffer( void* buffer, size_t WXUNUSED(size),
+                                   const wxDataFormat& WXUNUSED(format) )

     {
     {

-        wxLogLastError("GetDIBits");
+        return buffer;
+    }

 
 

-        return 0;
+#if wxUSE_UNICODE
+    virtual bool GetDataHere( void* buffer ) const
+    {
+        // CFSTR_SHELLURL is _always_ ANSI!
+        wxCharBuffer char_buffer( GetDataSize() );
+        wxCustomDataObject::GetDataHere( (void*)char_buffer.data() );
+        wxString unicode_buffer( char_buffer, wxConvLibc );
+        memcpy( buffer, unicode_buffer.c_str(),
+                ( unicode_buffer.length() + 1 ) * sizeof(wxChar) );
+
+        return true;

     }
     }

+    virtual bool GetDataHere(const wxDataFormat& WXUNUSED(format),
+                             void *buf) const
+        { return GetDataHere(buf); }
+#endif
+
+    DECLARE_NO_COPY_CLASS(CFSTR_SHELLURLDataObject)
+};
+
+
+
+wxURLDataObject::wxURLDataObject(const wxString& url)
+{
+    // we support CF_TEXT and CFSTR_SHELLURL formats which are basicly the same
+    // but it seems that some browsers only provide one of them so we have to
+    // support both
+    Add(new wxTextDataObject);
+    Add(new CFSTR_SHELLURLDataObject());
+
+    // we don't have any data yet
+    m_dataObjectLast = NULL;

 
 

-    return sizeof(BITMAPINFO) + pbi->bmiHeader.biSizeImage;
+    if ( !url.empty() )
+        SetURL(url);

 }
 
 }
 

-#ifdef __VISUALC__
-    #pragma warning(default:4701)
-#endif // __VISUALC__
+bool wxURLDataObject::SetData(const wxDataFormat& format,
+                              size_t len,
+                              const void *buf)
+{
+    m_dataObjectLast = GetObject(format);
+
+    wxCHECK_MSG( m_dataObjectLast, FALSE,
+                 wxT("unsupported format in wxURLDataObject"));
+
+    return m_dataObjectLast->SetData(len, buf);
+}

 
 

-wxBitmap wxConvertDIBToBitmap(const BITMAPINFO *pbmi)
+wxString wxURLDataObject::GetURL() const

 {
 {

-    // here we get BITMAPINFO struct followed by the actual bitmap bits and
-    // BITMAPINFO starts with BITMAPINFOHEADER followed by colour info
-    const BITMAPINFOHEADER *pbmih = &pbmi->bmiHeader;
-
-    ScreenHDC hdc;
-    HBITMAP hbmp = CreateDIBitmap(hdc, pbmih, CBM_INIT,
-                                  pbmi + 1, pbmi, DIB_RGB_COLORS);
-    if ( !hbmp )
-    {
-        wxLogLastError("CreateDIBitmap");
-    }
+    wxString url;
+    wxCHECK_MSG( m_dataObjectLast, url, _T("no data in wxURLDataObject") );

 
 

-    wxBitmap bitmap(pbmih->biWidth, pbmih->biHeight, pbmih->biBitCount);
-    bitmap.SetHBITMAP((WXHBITMAP)hbmp);
+    size_t len = m_dataObjectLast->GetDataSize();
+
+    m_dataObjectLast->GetDataHere(wxStringBuffer(url, len));

 
 

-    return bitmap;
+    return url;

 }
 
 }
 

+void wxURLDataObject::SetURL(const wxString& url)
+{
+    SetData(wxDataFormat(wxUSE_UNICODE ? wxDF_UNICODETEXT : wxDF_TEXT),
+            url.Length()+1, url.c_str());
+
+    // CFSTR_SHELLURL is always supposed to be ANSI...
+    wxWX2MBbuf urlA = (wxWX2MBbuf)url.mbc_str();
+    size_t len = strlen(urlA);
+    SetData(wxDataFormat(CFSTR_SHELLURL), len+1, (const char*)urlA);
+}
+
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+

 #ifdef __WXDEBUG__
 
 static const wxChar *GetTymedName(DWORD tymed)
 #ifdef __WXDEBUG__
 
 static const wxChar *GetTymedName(DWORD tymed)


@@ -1025,12 +1282,42 @@ static const wxChar *GetTymedName(DWORD tymed)
         case TYMED_MFPICT:    return wxT("TYMED_MFPICT");
         case TYMED_ENHMF:     return wxT("TYMED_ENHMF");
         default:
         case TYMED_MFPICT:    return wxT("TYMED_MFPICT");
         case TYMED_ENHMF:     return wxT("TYMED_ENHMF");
         default:

-            wxSprintf(s_szBuf, wxT("type of media format %d (unknown)"), tymed);
+            wxSprintf(s_szBuf, wxT("type of media format %ld (unknown)"), tymed);

             return s_szBuf;
     }
 }
 
 #endif // Debug
 
             return s_szBuf;
     }
 }
 
 #endif // Debug
 

-#endif // not using OLE at all
+#else // not using OLE at all
+
+// ----------------------------------------------------------------------------
+// wxDataObject
+// ----------------------------------------------------------------------------
+
+#if wxUSE_DATAOBJ
+
+wxDataObject::wxDataObject()
+{
+}
+
+wxDataObject::~wxDataObject()
+{
+}
+
+void wxDataObject::SetAutoDelete()
+{
+}
+
+#ifdef __WXDEBUG__
+const wxChar *wxDataObject::GetFormatName(wxDataFormat WXUNUSED(format))
+{
+    return NULL;
+}
+#endif // __WXDEBUG__
+
+#endif // wxUSE_DATAOBJ
+
+#endif // wxUSE_OLE/!wxUSE_OLE
+