Class ExplorerFolderInfo

FastCopyShellExtension/dllmain.cpp:179–183

Return value of GetCurrentExplorerFolders()

using UniquePidlPtr = std::unique_ptr< ITEMIDLIST, CoTaskMemDeleter >;
// Return value of GetCurrentExplorerFolders()
struct ExplorerFolderInfo
{
    HWND hwnd = nullptr;  // window handle of explorer
    UniquePidlPtr pidl;   // PIDL that points to current folder
};

// Get information about all currently open explorer windows.
// Throws std::system_error exception to report errors.