eraseitem.cpp

// cl /EHsc Ole32.lib Shell32.lib Shlwapi.lib eraseitem.cpp
#include <iostream>
#include <windows.h>
#include <Ole2.h>
#include <shlobj.h>
#include <shlwapi.h>
#include <string>

int main()
{
    OleInitialize(0);

    IShellFolder* desktop;
    if (FAILED(SHGetDesktopFolder(&desktop))) {
        std::cerr << "Failed to get desktop fodler" << std::endl;
        return -1;
    }

    LPITEMIDLIST pidlRecycleBin;
    if (FAILED(SHGetSpecialFolderLocation(0, CSIDL_BITBUCKET, &pidlRecycleBin))) {
        std::cerr << "Failed to get recyble bin location" << std::endl;
        desktop->Release();
        return -1;
    }

    IShellFolder* recycleBin;
    HRESULT res = desktop->BindToObject(pidlRecycleBin, 0, IID_IShellFolder, (LPVOID *)&recycleBin);

    ILFree(pidlRecycleBin);
    desktop->Release();

    if (FAILED(res)) {
        std::cerr << "Could not bind recycle bin location to shellfolder object" << std::endl;
        return -1;
    }

    IEnumIDList* enumFiles;
    if (FAILED(recycleBin->EnumObjects(0, SHCONTF_FOLDERS | SHCONTF_NONFOLDERS | SHCONTF_INCLUDEHIDDEN, &enumFiles)))
    {
        std::cerr << "Could not enumerate recycle bin objects" << std::endl;
        recycleBin->Release();
        return -1;
    }

    LPITEMIDLIST pidl = 0;
    while (enumFiles->Next(1, &pidl, 0) != S_FALSE) {
        STRRET strRet;
        if(SUCCEEDED(recycleBin->GetDisplayNameOf(pidl,SHGDN_NORMAL,&strRet)))
        {
            wchar_t* displayName;
            if (SUCCEEDED(StrRetToStrW(&strRet, pidl, &displayName)))
            {
                std::wcout << L"Do you want to delete " << displayName << " from recycle bin?" << std::endl;
                CoTaskMemFree(displayName);

                std::string str;
                std::cin >> str;

                if (str == "yes")
                {
                    IContextMenu* contextMenu;
                    recycleBin->GetUIObjectOf(0, 1, (LPCITEMIDLIST*)(&pidl), IID_IContextMenu, 0, (LPVOID *)&contextMenu);
                    CMINVOKECOMMANDINFO ci;
                    memset(&ci, 0, sizeof(ci));
                    ci.fMask = CMIC_MASK_FLAG_NO_UI;
                    ci.cbSize = sizeof(CMINVOKECOMMANDINFO);
                    ci.lpVerb = "delete";
                    contextMenu->InvokeCommand(&ci);
                    contextMenu->Release();
                }
            }
        }

        CoTaskMemFree(pidl);
    }

    enumFiles->Release();
    recycleBin->Release();

    OleUninitialize();
    return 0;
}