X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8e193f384f7b98daef459653ddb8485173fba8ba..c9057ae1c565cc4ae6c2cf84dd19d65a64ee2b7b:/src/msw/ole/dataobj.cpp diff --git a/src/msw/ole/dataobj.cpp b/src/msw/ole/dataobj.cpp index f1eab4707c..46cfd66c4b 100644 --- a/src/msw/ole/dataobj.cpp +++ b/src/msw/ole/dataobj.cpp @@ -43,7 +43,7 @@ #endif #include -#ifndef __WIN32__ +#ifndef __WIN32__ #include #include #endif @@ -55,9 +55,13 @@ // ---------------------------------------------------------------------------- #ifdef __WXDEBUG__ - static const char *GetTymedName(DWORD tymed); + 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); + // ---------------------------------------------------------------------------- // wxIEnumFORMATETC interface implementation // ---------------------------------------------------------------------------- @@ -90,6 +94,12 @@ class wxIDataObject : public IDataObject { public: wxIDataObject(wxDataObject *pDataObject); + ~wxIDataObject(); + + // 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 + // when this object is deleted - setting this flag enables such logic + void SetDeleteFlag() { m_mustDelete = TRUE; } DECLARE_IUNKNOWN_METHODS; @@ -106,6 +116,24 @@ public: 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; }; // ============================================================================ @@ -251,6 +279,15 @@ wxIDataObject::wxIDataObject(wxDataObject *pDataObject) { m_cRef = 0; m_pDataObject = pDataObject; + m_mustDelete = FALSE; +} + +wxIDataObject::~wxIDataObject() +{ + if ( m_mustDelete ) + { + delete m_pDataObject; + } } // get data functions @@ -287,6 +324,12 @@ STDMETHODIMP wxIDataObject::GetData(FORMATETC *pformatetcIn, STGMEDIUM *pmedium) 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); + } + HGLOBAL hGlobal = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE, size); if ( hGlobal == NULL ) { wxLogLastError("GlobalAlloc"); @@ -323,7 +366,8 @@ STDMETHODIMP wxIDataObject::GetDataHere(FORMATETC *pformatetc, switch ( pmedium->tymed ) { case TYMED_GDI: - m_pDataObject->GetDataHere(wxDF_BITMAP, &pmedium->hBitmap); + if ( !m_pDataObject->GetDataHere(wxDF_BITMAP, &pmedium->hBitmap) ) + return E_UNEXPECTED; break; case TYMED_MFPICT: @@ -335,16 +379,25 @@ STDMETHODIMP wxIDataObject::GetDataHere(FORMATETC *pformatetc, case TYMED_HGLOBAL: { // copy data - void *pBuf = GlobalLock(pmedium->hGlobal); + HGLOBAL hGlobal = pmedium->hGlobal; + void *pBuf = GlobalLock(hGlobal); if ( pBuf == NULL ) { wxLogLastError(wxT("GlobalLock")); return E_OUTOFMEMORY; } - wxDataFormat format = (wxDataFormatId)pformatetc->cfFormat; - m_pDataObject->GetDataHere(format, pBuf); + 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; + } - GlobalUnlock(pmedium->hGlobal); + wxDataFormat format = pformatetc->cfFormat; + if ( !m_pDataObject->GetDataHere(format, pBuf) ) + return E_UNEXPECTED; + + GlobalUnlock(hGlobal); } break; @@ -355,71 +408,159 @@ STDMETHODIMP wxIDataObject::GetDataHere(FORMATETC *pformatetc, return S_OK; } -// set data functions (not implemented) +// set data functions STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc, STGMEDIUM *pmedium, BOOL fRelease) { - wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::SetData")); + wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::SetData")); - return E_NOTIMPL; + switch ( pmedium->tymed ) + { + case TYMED_GDI: + 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")); + break; + + case TYMED_HGLOBAL: + { + // copy data + void *pBuf = GlobalLock(pmedium->hGlobal); + if ( pBuf == NULL ) { + wxLogLastError("GlobalLock"); + + return E_OUTOFMEMORY; + } + + // we've got a problem with SetData() here because the base + // class version requires the size parameter which we don't + // have anywhere in OLE data transfer - so we need to + // 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 ) + { + case CF_TEXT: + case CF_OEMTEXT: + size = strlen((const char *)pBuf); + break; + + case CF_UNICODETEXT: + size = wcslen((const wchar_t *)pBuf); + break; + + case CF_BITMAP: + 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; + + default: + { + // we suppose that the size precedes the data + size_t *p = (size_t *)pBuf; + size = *p++; + pBuf = p; + } + } + + wxDataFormat format = pformatetc->cfFormat; + bool ok = m_pDataObject->SetData(format, size, pBuf); + + GlobalUnlock(pmedium->hGlobal); + + if ( !ok ) { + return E_UNEXPECTED; + } + } + break; + + default: + return DV_E_TYMED; + } + + 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 ) + { + pmedium->hBitmap = 0; + } + + ReleaseStgMedium(pmedium); + } + + return S_OK; } // information functions STDMETHODIMP wxIDataObject::QueryGetData(FORMATETC *pformatetc) { - // do we accept data in this format? - if ( pformatetc == NULL ) { - wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::QueryGetData: invalid ptr.")); + // do we accept data in this format? + if ( pformatetc == NULL ) { + wxLogTrace(wxTRACE_OleCalls, + wxT("wxIDataObject::QueryGetData: invalid ptr.")); - return E_INVALIDARG; - } + return E_INVALIDARG; + } - // the only one allowed by current COM implementation - if ( pformatetc->lindex != -1 ) { - wxLogTrace(wxTRACE_OleCalls, - wxT("wxIDataObject::QueryGetData: bad lindex %d"), - pformatetc->lindex); - return DV_E_LINDEX; - } + // the only one allowed by current COM implementation + if ( pformatetc->lindex != -1 ) { + wxLogTrace(wxTRACE_OleCalls, + wxT("wxIDataObject::QueryGetData: bad lindex %d"), + pformatetc->lindex); - // we don't support anything other (THUMBNAIL, ICON, DOCPRINT...) - if ( pformatetc->dwAspect != DVASPECT_CONTENT ) { - wxLogTrace(wxTRACE_OleCalls, - wxT("wxIDataObject::QueryGetData: bad dwAspect %d"), - pformatetc->dwAspect); - return DV_E_DVASPECT; - } + return DV_E_LINDEX; + } + + // we don't support anything other (THUMBNAIL, ICON, DOCPRINT...) + if ( pformatetc->dwAspect != DVASPECT_CONTENT ) { + wxLogTrace(wxTRACE_OleCalls, + wxT("wxIDataObject::QueryGetData: bad dwAspect %d"), + pformatetc->dwAspect); - // we only transfer data by global memory, except for some particular cases - wxDataFormat format = (wxDataFormatId)pformatetc->cfFormat; - DWORD tymed = pformatetc->tymed; - if ( (format == wxDF_BITMAP && !(tymed & TYMED_GDI)) || - !(tymed & TYMED_HGLOBAL) ) { - // it's not what we're waiting for + return DV_E_DVASPECT; + } + + // 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 & %s == 0."), - GetTymedName(tymed), - GetTymedName(format == wxDF_BITMAP ? TYMED_GDI : TYMED_HGLOBAL)); + wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::QueryGetData: %s ok"), + wxDataObject::GetFormatName(format)); #endif // Debug - return DV_E_TYMED; - } + } + else { + wxLogTrace(wxTRACE_OleCalls, + wxT("wxIDataObject::QueryGetData: %s unsupported"), + wxDataObject::GetFormatName(format)); + + return DV_E_FORMATETC; + } - // and now check the type of data requested - if ( m_pDataObject->IsSupportedFormat(format) ) { + // we only transfer data by global memory, except for some particular cases + DWORD tymed = pformatetc->tymed; + 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 ok"), - wxDataObject::GetFormatName(format)); + 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 S_OK; - } - else { - wxLogTrace(wxTRACE_OleCalls, - wxT("wxIDataObject::QueryGetData: %s unsupported"), - wxDataObject::GetFormatName((wxDataFormatId)pformatetc->cfFormat)); - return DV_E_FORMATETC; - } } STDMETHODIMP wxIDataObject::GetCanonicalFormatEtc(FORMATETC *pFormatetcIn, @@ -434,28 +575,18 @@ STDMETHODIMP wxIDataObject::GetCanonicalFormatEtc(FORMATETC *pFormatetcIn, return DATA_S_SAMEFORMATETC; } -STDMETHODIMP wxIDataObject::EnumFormatEtc(DWORD dwDirection, +STDMETHODIMP wxIDataObject::EnumFormatEtc(DWORD dwDir, IEnumFORMATETC **ppenumFormatEtc) { wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::EnumFormatEtc")); - if ( dwDirection == DATADIR_SET ) { - // we don't allow setting of data anyhow - return E_NOTIMPL; - } + wxDataObject::Direction dir = dwDir == DATADIR_GET ? wxDataObject::Get + : wxDataObject::Set; - size_t nFormatCount = m_pDataObject->GetFormatCount(); + size_t nFormatCount = m_pDataObject->GetFormatCount(dir); wxDataFormat format, *formats; - if ( nFormatCount == 1 ) { - // this is the most common case, this is why we consider it separately - formats = &format; - format = m_pDataObject->GetPreferredFormat(); - } - else { - // bad luck, build the array with all formats - formats = new wxDataFormat[nFormatCount]; - m_pDataObject->GetAllFormats(formats); - } + formats = nFormatCount == 1 ? &format : new wxDataFormat[nFormatCount]; + m_pDataObject->GetAllFormats(formats, dir); wxIEnumFORMATETC *pEnum = new wxIEnumFORMATETC(formats, nFormatCount); pEnum->AddRef(); @@ -468,7 +599,10 @@ STDMETHODIMP wxIDataObject::EnumFormatEtc(DWORD dwDirection, return S_OK; } +// ---------------------------------------------------------------------------- // advise sink functions (not implemented) +// ---------------------------------------------------------------------------- + STDMETHODIMP wxIDataObject::DAdvise(FORMATETC *pformatetc, DWORD advf, IAdviseSink *pAdvSink, @@ -493,13 +627,22 @@ STDMETHODIMP wxIDataObject::EnumDAdvise(IEnumSTATDATA **ppenumAdvise) wxDataObject::wxDataObject() { - m_pIDataObject = new wxIDataObject(this); - m_pIDataObject->AddRef(); + m_pIDataObject = new wxIDataObject(this); + m_pIDataObject->AddRef(); } wxDataObject::~wxDataObject() { - m_pIDataObject->Release(); + ReleaseInterface(m_pIDataObject); +} + +void wxDataObject::SetAutoDelete() +{ + ((wxIDataObject *)m_pIDataObject)->SetDeleteFlag(); + m_pIDataObject->Release(); + + // so that the dtor doesnt' crash + m_pIDataObject = NULL; } bool wxDataObject::IsSupportedFormat(const wxDataFormat& format) const @@ -552,7 +695,7 @@ const char *wxDataObject::GetFormatName(wxDataFormat format) case CF_HDROP: return "CF_HDROP"; case CF_LOCALE: return "CF_LOCALE"; default: - sprintf(s_szBuf, "clipboard format %d (unknown)", format); + sprintf(s_szBuf, "clipboard format 0x%x (unknown)", format); return s_szBuf; } @@ -563,92 +706,333 @@ const char *wxDataObject::GetFormatName(wxDataFormat format) #endif // Debug // ---------------------------------------------------------------------------- -// wxPrivateDataObject +// wxBitmapDataObject supports CF_DIB format // ---------------------------------------------------------------------------- -wxPrivateDataObject::wxPrivateDataObject() +size_t wxBitmapDataObject::GetDataSize() const { - m_size = 0; - m_data = NULL; + return wxConvertBitmapToDIB(NULL, GetBitmap()); } -void wxPrivateDataObject::Free() +bool wxBitmapDataObject::GetDataHere(void *buf) const { - if ( m_data ) - free(m_data); + return wxConvertBitmapToDIB((BITMAPINFO *)buf, GetBitmap()) != 0; } -void wxPrivateDataObject::SetData( const void *data, size_t size ) +bool wxBitmapDataObject::SetData(size_t len, const void *buf) { - Free(); + wxBitmap bitmap(wxConvertDIBToBitmap((const BITMAPINFO *)buf)); + + if ( !bitmap.Ok() ) { + wxFAIL_MSG(wxT("pasting/dropping invalid bitmap")); - m_size = size; - m_data = malloc(size); + return FALSE; + } + + SetBitmap(bitmap); - memcpy( m_data, data, size ); + return TRUE; } -void wxPrivateDataObject::WriteData( void *dest ) const +// ---------------------------------------------------------------------------- +// wxBitmapDataObject2 supports CF_BITMAP format +// ---------------------------------------------------------------------------- + +// the bitmaps aren't passed by value as other types of data (i.e. by copying +// the data into a global memory chunk and passing it to the clipboard or +// another application or whatever), but by handle, so these generic functions +// don't make much sense to them. + +size_t wxBitmapDataObject2::GetDataSize() const { - WriteData( m_data, dest ); + return 0; } -size_t wxPrivateDataObject::GetSize() const +bool wxBitmapDataObject2::GetDataHere(void *pBuf) const { - return m_size; + // we put a bitmap handle into pBuf + *(WXHBITMAP *)pBuf = GetBitmap().GetHBITMAP(); + + return TRUE; } -void wxPrivateDataObject::WriteData( const void *data, void *dest ) const +bool wxBitmapDataObject2::SetData(size_t len, const void *pBuf) { - memcpy( dest, data, GetSize() ); -} + HBITMAP hbmp = *(HBITMAP *)pBuf; -// ---------------------------------------------------------------------------- -// wxBitmapDataObject -// ---------------------------------------------------------------------------- + BITMAP bmp; + if ( !GetObject(hbmp, sizeof(BITMAP), &bmp) ) + { + wxLogLastError("GetObject(HBITMAP)"); + } -// the bitmaps aren't passed by value as other types of data (i.e. by copyign -// the data into a global memory chunk and passing it to the clipboard or -// another application or whatever), but by handle, so these generic functions -// don't make much sense to them. + wxBitmap bitmap(bmp.bmWidth, bmp.bmHeight, bmp.bmPlanes); + bitmap.SetHBITMAP((WXHBITMAP)hbmp); + + if ( !bitmap.Ok() ) { + wxFAIL_MSG(wxT("pasting/dropping invalid bitmap")); + + return FALSE; + } + + SetBitmap(bitmap); + + return TRUE; +} + +#if 0 size_t wxBitmapDataObject::GetDataSize(const wxDataFormat& format) const { - // no data to copy anyhow - return 0; + if ( format.GetFormatId() == CF_DIB ) + { + // create the DIB + ScreenHDC hdc; + + // shouldn't be selected into a DC or GetDIBits() would fail + wxASSERT_MSG( !m_bitmap.GetSelectedInto(), + wxT("can't copy bitmap selected into wxMemoryDC") ); + + // first get the info + BITMAPINFO bi; + if ( !GetDIBits(hdc, (HBITMAP)m_bitmap.GetHBITMAP(), 0, 0, + NULL, &bi, DIB_RGB_COLORS) ) + { + wxLogLastError("GetDIBits(NULL)"); + + return 0; + } + + return sizeof(BITMAPINFO) + bi.bmiHeader.biSizeImage; + } + else // CF_BITMAP + { + // no data to copy - we don't pass HBITMAP via global memory + return 0; + } } -void wxBitmapDataObject::GetDataHere(const wxDataFormat& format, +bool wxBitmapDataObject::GetDataHere(const wxDataFormat& format, void *pBuf) const { - // we put a bitmap handle into pBuf - *(WXHBITMAP *)pBuf = m_bitmap.GetHBITMAP(); + wxASSERT_MSG( m_bitmap.Ok(), wxT("copying invalid bitmap") ); + + HBITMAP hbmp = (HBITMAP)m_bitmap.GetHBITMAP(); + if ( format.GetFormatId() == CF_DIB ) + { + // create the DIB + ScreenHDC hdc; + + // shouldn't be selected into a DC or GetDIBits() would fail + wxASSERT_MSG( !m_bitmap.GetSelectedInto(), + wxT("can't copy bitmap selected into wxMemoryDC") ); + + // first get the info + BITMAPINFO *pbi = (BITMAPINFO *)pBuf; + if ( !GetDIBits(hdc, hbmp, 0, 0, NULL, pbi, DIB_RGB_COLORS) ) + { + wxLogLastError("GetDIBits(NULL)"); + + return 0; + } + + // and now copy the bits + if ( !GetDIBits(hdc, hbmp, 0, pbi->bmiHeader.biHeight, pbi + 1, + pbi, DIB_RGB_COLORS) ) + { + wxLogLastError("GetDIBits"); + + return FALSE; + } + } + else // CF_BITMAP + { + // we put a bitmap handle into pBuf + *(HBITMAP *)pBuf = hbmp; + } + + return TRUE; +} + +bool wxBitmapDataObject::SetData(const wxDataFormat& format, + size_t size, const void *pBuf) +{ + HBITMAP hbmp; + if ( format.GetFormatId() == CF_DIB ) + { + // here we get BITMAPINFO struct followed by the actual bitmap bits and + // BITMAPINFO starts with BITMAPINFOHEADER followed by colour info + ScreenHDC hdc; + + BITMAPINFO *pbmi = (BITMAPINFO *)pBuf; + BITMAPINFOHEADER *pbmih = &pbmi->bmiHeader; + hbmp = CreateDIBitmap(hdc, pbmih, CBM_INIT, + pbmi + 1, pbmi, DIB_RGB_COLORS); + if ( !hbmp ) + { + wxLogLastError("CreateDIBitmap"); + } + + m_bitmap.SetWidth(pbmih->biWidth); + m_bitmap.SetHeight(pbmih->biHeight); + } + else // CF_BITMAP + { + // it's easy with bitmaps: we pass them by handle + hbmp = *(HBITMAP *)pBuf; + + BITMAP bmp; + if ( !GetObject(hbmp, sizeof(BITMAP), &bmp) ) + { + wxLogLastError("GetObject(HBITMAP)"); + } + + m_bitmap.SetWidth(bmp.bmWidth); + m_bitmap.SetHeight(bmp.bmHeight); + m_bitmap.SetDepth(bmp.bmPlanes); + } + + m_bitmap.SetHBITMAP((WXHBITMAP)hbmp); + + wxASSERT_MSG( m_bitmap.Ok(), wxT("pasting invalid bitmap") ); + + return TRUE; +} + +#endif // 0 + +// ---------------------------------------------------------------------------- +// wxFileDataObject +// ---------------------------------------------------------------------------- + +bool wxFileDataObject::SetData(size_t WXUNUSED(size), const void *pData) +{ + m_filenames.Empty(); + + // the documentation states that the first member of DROPFILES structure is + // a "DWORD offset of double NUL terminated file list". What they mean by + // this (I wonder if you see it immediately) is that the list starts at + // ((char *)&(pDropFiles.pFiles)) + pDropFiles.pFiles. We're also advised + // to use DragQueryFile to work with this structure, but not told where and + // how to get HDROP. + HDROP hdrop = (HDROP)pData; // NB: it works, but I'm not sure about it + + // get number of files (magic value -1) + UINT nFiles = ::DragQueryFile(hdrop, (unsigned)-1, NULL, 0u); + + // for each file get the length, allocate memory and then get the name + wxString str; + UINT len, n; + for ( n = 0; n < nFiles; n++ ) { + // +1 for terminating NUL + len = ::DragQueryFile(hdrop, n, NULL, 0) + 1; + + UINT len2 = ::DragQueryFile(hdrop, n, str.GetWriteBuf(len), len); + str.UngetWriteBuf(); + m_filenames.Add(str); + + if ( len2 != len - 1 ) { + wxLogDebug(wxT("In wxFileDropTarget::OnDrop DragQueryFile returned" + " %d characters, %d expected."), len2, len - 1); + } + } + + return TRUE; } // ---------------------------------------------------------------------------- // private functions // ---------------------------------------------------------------------------- +// 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__ + +size_t wxConvertBitmapToDIB(BITMAPINFO *pbi, const wxBitmap& bitmap) +{ + // shouldn't be selected into a DC or GetDIBits() would fail + wxASSERT_MSG( !bitmap.GetSelectedInto(), + wxT("can't copy bitmap selected into wxMemoryDC") ); + + HBITMAP hbmp = (HBITMAP)bitmap.GetHBITMAP(); + + BITMAPINFO bi; + + // first get the info + ScreenHDC hdc; + if ( !GetDIBits(hdc, hbmp, 0, 0, NULL, pbi ? pbi : &bi, DIB_RGB_COLORS) ) + { + wxLogLastError("GetDIBits(NULL)"); + + return 0; + } + + if ( !pbi ) + { + // we were only asked for size needed for the buffer, not to actually + // copy the data + return sizeof(BITMAPINFO) + bi.bmiHeader.biSizeImage; + } + + // and now copy the bits + if ( !GetDIBits(hdc, hbmp, 0, pbi->bmiHeader.biHeight, pbi + 1, + pbi, DIB_RGB_COLORS) ) + { + wxLogLastError("GetDIBits"); + + return 0; + } + + return sizeof(BITMAPINFO) + pbi->bmiHeader.biSizeImage; +} + +#ifdef __VISUALC__ + #pragma warning(default:4701) +#endif // __VISUALC__ + +wxBitmap wxConvertDIBToBitmap(const BITMAPINFO *pbmi) +{ + // 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"); + } + + wxBitmap bitmap(pbmih->biWidth, pbmih->biHeight, pbmih->biBitCount); + bitmap.SetHBITMAP((WXHBITMAP)hbmp); + + return bitmap; +} + #ifdef __WXDEBUG__ -static const char *GetTymedName(DWORD tymed) +static const wxChar *GetTymedName(DWORD tymed) { - static char s_szBuf[128]; - switch ( tymed ) { - case TYMED_HGLOBAL: return "TYMED_HGLOBAL"; - case TYMED_FILE: return "TYMED_FILE"; - case TYMED_ISTREAM: return "TYMED_ISTREAM"; - case TYMED_ISTORAGE: return "TYMED_ISTORAGE"; - case TYMED_GDI: return "TYMED_GDI"; - case TYMED_MFPICT: return "TYMED_MFPICT"; - case TYMED_ENHMF: return "TYMED_ENHMF"; - default: - sprintf(s_szBuf, "type of media format %d (unknown)", tymed); - return s_szBuf; - } + static wxChar s_szBuf[128]; + switch ( tymed ) { + case TYMED_HGLOBAL: return wxT("TYMED_HGLOBAL"); + case TYMED_FILE: return wxT("TYMED_FILE"); + case TYMED_ISTREAM: return wxT("TYMED_ISTREAM"); + case TYMED_ISTORAGE: return wxT("TYMED_ISTORAGE"); + case TYMED_GDI: return wxT("TYMED_GDI"); + 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); + return s_szBuf; + } } #endif // Debug -#endif +#endif // not using OLE at all