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Use GlobalPtrLock instead of manual Global{Lock,Unlock}() calls

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Also add GlobalPtrLock::GetSize() and use it instead of calling
GetSizeFromBuffer() as it's more direct and doesn't require the use of
::GlobalHandle().
This commit is contained in:
Vadim Zeitlin
2020-08-22 19:30:03 +02:00
parent aadfaada7a
commit 0d7be7c189
2 changed files with 16 additions and 16 deletions
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9
include/wx/msw/private.h
View File

@@ -773,6 +773,15 @@ public:
void *Get() const { return m_ptr; }
operator void *() const { return m_ptr; }
size_t GetSize() const
{
const size_t size = ::GlobalSize(m_hGlobal);
if ( !size )
wxLogLastError(wxT("GlobalSize"));
return size;
}
private:
HGLOBAL m_hGlobal;
void *m_ptr;

23
src/msw/ole/dataobj.cpp
View File

@@ -713,12 +713,9 @@ STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
}
// copy data
const void *pBuf = GlobalLock(pmedium->hGlobal);
if ( pBuf == NULL ) {
wxLogLastError(wxT("GlobalLock"));
GlobalPtrLock ptr(pmedium->hGlobal);
if ( !ptr )
return E_OUTOFMEMORY;
}
// we've got a problem with SetData() here because the base
// class version requires the size parameter which we don't
@@ -731,14 +728,14 @@ STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
case wxDF_HTML:
case CF_TEXT:
case CF_OEMTEXT:
size = strlen((const char *)pBuf);
size = strlen((const char *)ptr.Get());
break;
#if !(defined(__BORLANDC__) && (__BORLANDC__ < 0x500))
case CF_UNICODETEXT:
#if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) )
size = std::wcslen((const wchar_t *)pBuf) * sizeof(wchar_t);
size = std::wcslen((const wchar_t *)ptr.Get()) * sizeof(wchar_t);
#else
size = wxWcslen((const wchar_t *)pBuf) * sizeof(wchar_t);
size = wxWcslen((const wchar_t *)ptr.Get()) * sizeof(wchar_t);
#endif
break;
#endif
@@ -759,18 +756,12 @@ STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
size = sizeof(METAFILEPICT);
break;
default:
pBuf = m_pDataObject->
GetSizeFromBuffer(pBuf, &size, format);
size = ptr.GetSize();
size -= m_pDataObject->GetBufferOffset(format);
}
bool ok = m_pDataObject->SetData(format, size, pBuf);
GlobalUnlock(pmedium->hGlobal);
if ( !ok ) {
if ( !m_pDataObject->SetData(format, size, ptr.Get()) )
return E_UNEXPECTED;
}
}
break;