本文整理汇总了C++中_bstr_t::Assign方法的典型用法代码示例。如果您正苦于以下问题：C++ _bstr_t::Assign方法的具体用法？C++ _bstr_t::Assign怎么用？C++ _bstr_t::Assign使用的例子？那么, 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_bstr_t的用法示例。
在下文中一共展示了_bstr_t::Assign方法的2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: GetPropertyItemValues
HRESULT CCOMDispatchHelper::GetPropertyItemValues(const IDispatchPtr& pICollection, int iIndex,
_bstr_t& bstrName, _bstr_t& bstrValue)
{
HRESULT hr = E_FAIL;
variant_t result, vIndex;
vIndex.lVal = iIndex;
vIndex.vt = VT_I4;
hr = AutoWrap(DISPATCH_PROPERTYGET|DISPATCH_METHOD, &result, pICollection, L"Item", 1, vIndex);
RETURN_FAILED(hr);
IDispatchPtr spPropItem = result.pdispVal;
variant_t vPropItem;
hr = AutoWrap(DISPATCH_PROPERTYGET|DISPATCH_METHOD, &vPropItem, spPropItem, L"Name", 0);
RETURN_FAILED(hr);
bstrName.Assign(vPropItem.bstrVal);
hr = AutoWrap(DISPATCH_PROPERTYGET|DISPATCH_METHOD, &vPropItem, spPropItem, L"Value", 0);
RETURN_FAILED(hr);
//ComConvertUtils aComConvertUtils;
//TODO look at a better way of casting a variant_t to a PROPVARIANT
bstrValue = (LPCTSTR)PropVariantToString(*(PROPVARIANT*)(VARIANT*)&vPropItem);
return hr;
}示例2: GetPropertyItemDateTimeValues
HRESULT CCOMDispatchHelper::GetPropertyItemDateTimeValues(const IDispatchPtr& pICollection, int iIndex,
_bstr_t& bstrName, FILETIME& ftValue)
{
HRESULT hr = E_FAIL;
ftValue.dwHighDateTime = 0;
ftValue.dwLowDateTime = 0;
variant_t result;
variant_t vIndex;
vIndex.lVal = iIndex;
vIndex.vt = VT_I4;
hr = AutoWrap(DISPATCH_PROPERTYGET|DISPATCH_METHOD, &result, pICollection, L"Item", 1, vIndex);
RETURN_FAILED(hr);
IDispatchPtr spPropItem = result.pdispVal;
variant_t vPropItem;
hr = AutoWrap(DISPATCH_PROPERTYGET|DISPATCH_METHOD, &vPropItem, spPropItem, L"Name", 0);
RETURN_FAILED(hr);
bstrName.Assign(vPropItem.bstrVal);
_variant_t vtTime;
VariantInit(&vtTime);
hr = AutoWrap(DISPATCH_PROPERTYGET|DISPATCH_METHOD, &vtTime, spPropItem, L"Value", 0);
RETURN_FAILED(hr);
if(vtTime.vt != VT_DATE)
return E_INVALIDARG;
COleDateTime OLETime(vtTime);
SYSTEMTIME sysTime;
if(!OLETime.GetAsSystemTime(sysTime))
return E_FAIL;
::SystemTimeToFileTime(&sysTime, &ftValue);
return hr;
}