Generates a GUID and copies it to the clipboard.

gclip.cpp

// cl /EHsc /std:c++17 /O2 gclip.cpp
// Requires VS 2017 15.6+ and the RS4 Windows SDK.

#pragma comment(lib, "windowsapp")
#pragma comment(lib, "ole32")

#include <winrt/Windows.ApplicationModel.DataTransfer.h>
#include <windows.h>

using namespace winrt;
using namespace Windows::ApplicationModel::DataTransfer;

int main()
{
    init_apartment(apartment_type::single_threaded);

    GUID guid{};
    CoCreateGuid(&guid);

    wchar_t* text{};
    StringFromCLSID(guid, &text);
    text[37] = 0;

    DataPackage content;
    content.SetText(text + 1);

    Clipboard::SetContent(content);
    Clipboard::Flush();
}

No CoTaskMemFree to free text?

I didn't bother because the process terminates immediately and all is torn down.

auto [guid, guid_str] = make_guid ();

Have no RS4 enabled machine at hand, so just a chat :) If, I implement the above function, I would like to be able to "just" write:

DataPackage content; content.SetText( guid_str);

In other words what would be the preferred guid_str type returning from the make_guid ?