Function ShowFailure

SampleApps/WebView2APISample/CheckFailure.cpp:10–16

Notify the user of a failure with a message box.

#include <sstream>
// Notify the user of a failure with a message box.
void ShowFailure(HRESULT hr, const std::wstring& message)
{
    std::wstringstream formattedMessage;
    formattedMessage << message << ": 0x" << std::hex << std::setw(8) << hr << " ("
                     << winrt::hresult_error(hr).message().c_str() << ")";
    MessageBox(nullptr, formattedMessage.str().c_str(), nullptr, MB_OK);
}

// If something failed, show the error code and fail fast.
void CheckFailure(HRESULT hr, const std::wstring& message)