本文整理汇总了C++中wxDataObject::IsSupported方法的典型用法代码示例。如果您正苦于以下问题：C++ wxDataObject::IsSupported方法的具体用法？C++ wxDataObject::IsSupported怎么用？C++ wxDataObject::IsSupported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::IsSupported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: SetData
// set data functions
STDMETHODIMP wxIDataObject::SetData(FORMATETC *pformatetc,
STGMEDIUM *pmedium,
BOOL fRelease)
{
wxLogTrace(wxTRACE_OleCalls, wxT("wxIDataObject::SetData"));
switch ( pmedium->tymed )
{
case TYMED_GDI:
m_pDataObject->SetData(wxDF_BITMAP, 0, &pmedium->hBitmap);
break;
case TYMED_ENHMF:
m_pDataObject->SetData(wxDF_ENHMETAFILE, 0, &pmedium->hEnhMetaFile);
break;
case TYMED_ISTREAM:
// check if this format is supported
if ( !m_pDataObject->IsSupported(pformatetc->cfFormat,
wxDataObject::Set) )
{
// As this is not a supported format (content data), assume it
// is system data and save it.
return SaveSystemData(pformatetc, pmedium, fRelease);
}
break;
case TYMED_MFPICT:
// fall through - we pass METAFILEPICT through HGLOBAL
case TYMED_HGLOBAL:
{
wxDataFormat format = pformatetc->cfFormat;
format = HtmlFormatFixup(format);
// check if this format is supported
if ( !m_pDataObject->IsSupported(format, wxDataObject::Set) ) {
// As above, assume that unsupported format must be system
// data and just save it.
return SaveSystemData(pformatetc, pmedium, fRelease);
}
// copy data
const void *pBuf = GlobalLock(pmedium->hGlobal);
if ( pBuf == NULL ) {
wxLogLastError(wxT("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 ( format )
{
case wxDF_HTML:
case CF_TEXT:
case CF_OEMTEXT:
size = strlen((const char *)pBuf);
break;
#if !(defined(__BORLANDC__) && (__BORLANDC__ < 0x500))
case CF_UNICODETEXT:
#if ( defined(__BORLANDC__) && (__BORLANDC__ > 0x530) )
size = std::wcslen((const wchar_t *)pBuf) * sizeof(wchar_t);
#else
size = wxWcslen((const wchar_t *)pBuf) * sizeof(wchar_t);
#endif
break;
#endif
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;
#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:
pBuf = m_pDataObject->
GetSizeFromBuffer(pBuf, &size, format);
size -= m_pDataObject->GetBufferOffset(format);
}
bool ok = m_pDataObject->SetData(format, size, pBuf);
//.........这里部分代码省略.........