本文整理汇总了C++中wxDataObject::SetSizeInBuffer方法的典型用法代码示例。如果您正苦于以下问题：C++ wxDataObject::SetSizeInBuffer方法的具体用法？C++ wxDataObject::SetSizeInBuffer怎么用？C++ wxDataObject::SetSizeInBuffer使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类wxDataObject的用法示例。
在下文中一共展示了wxDataObject::SetSizeInBuffer方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: GetDataHere
STDMETHODIMP wxIDataObject::GetDataHere(FORMATETC *pformatetc,
STGMEDIUM *pmedium)
{
wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::GetDataHere"));
// put data in caller provided medium
switch ( pmedium->tymed )
{
case TYMED_GDI:
if ( !m_pDataObject->GetDataHere(wxDF_BITMAP, &pmedium->hBitmap) )
return E_UNEXPECTED;
break;
case TYMED_ENHMF:
if ( !m_pDataObject->GetDataHere(wxDF_ENHMETAFILE,
&pmedium->hEnhMetaFile) )
return E_UNEXPECTED;
break;
case TYMED_MFPICT:
// fall through - we pass METAFILEPICT through HGLOBAL
case TYMED_HGLOBAL:
{
// copy data
HGLOBAL hGlobal = pmedium->hGlobal;
void *pBuf = GlobalLock(hGlobal);
if ( pBuf == NULL ) {
wxLogLastError(wxT("GlobalLock"));
return E_OUTOFMEMORY;
}
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;
GlobalUnlock(hGlobal);
}
break;
default:
return DV_E_TYMED;
}
return S_OK;
}