本文整理汇总了C++中microsoft::wrl::ComPtr::Buffer方法的典型用法代码示例。如果您正苦于以下问题：C++ ComPtr::Buffer方法的具体用法？C++ ComPtr::Buffer怎么用？C++ ComPtr::Buffer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microsoft::wrl::ComPtr的用法示例。
在下文中一共展示了ComPtr::Buffer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: decrypt
plaintext_string winrt_encryption::decrypt() const
{
// To fully guarantee asynchrony would require significant impact on existing code. This code path
// is never run on a user's thread and is only done once when setting up a connection.
auto encrypted = m_buffer.get();
auto provider = ref new Windows::Security::Cryptography::DataProtection::DataProtectionProvider();
auto plaintext = pplx::create_task(provider->UnprotectAsync(encrypted)).get();
// Get access to raw bytes in plain text buffer.
Microsoft::WRL::ComPtr<IInspectable> bufferInspectable(reinterpret_cast<IInspectable *>(plaintext));
Microsoft::WRL::ComPtr<Windows::Storage::Streams::IBufferByteAccess> bufferByteAccess;
bufferInspectable.As(&bufferByteAccess);
byte * rawPlaintext;
const auto &result = bufferByteAccess->Buffer(&rawPlaintext);
if (result != S_OK)
{
throw ::utility::details::create_system_error(result);
}
// Construct string and zero out memory from plain text buffer.
auto data = plaintext_string(new std::wstring(
reinterpret_cast<const std::wstring::value_type *>(rawPlaintext),
plaintext->Length / 2));
SecureZeroMemory(rawPlaintext, plaintext->Length);
return std::move(data);
}