windows桌面新建文件夹c++

Question

目的： Windows 资源管理器（桌面）中的新文件夹创建功能（图标坐标设置+标签校正）

我想知道如何创建一个新文件夹，例如 Windows 资源管理器（桌面）。

我想知道与"Right click on desktop → New → Folder"相同的功能。

我要的是到具体的坐标。

++要是能把label也修改一下就更好了

我就是这样做的。

CreateDirectory → FindWindow（桌面列表视图）→ SendMessage（LVM_SETITEMPOSITION）

但是当我这样做时 CreateDirectory 它在桌面上显得太慢了。 (默认1000ms以上)

所以我尝试了 SHChangeNotify 但它看起来很慢。

该源代码的功能是将鼠标移动到桌面上的特定位置，然后按快捷方式创建具有该坐标的文件夹。但是，我可以看到文件夹显示缓慢且移动 (SendMessage (LVM_SETITEMPOSITION))。

// this is Console Application
HWND hDesk = FindWindow(NULL, L"Program Manager");
HWND hDesk2 = FindWindowEx(hDesk, NULL, L"SHELLDLL_DefView", NULL);
HWND hListView = FindWindowEx(hDesk2, NULL, L"SysListView32", NULL);

int iconCount = (int)SendMessage(hListView, LVM_GETITEMCOUNT, NULL, NULL);

printf("컨트롤(Control) + F2\n");
RegisterHotKey(NULL, 1, MOD_CONTROL, VK_F2);

MSG msg;
while (GetMessage(&msg, 0, 0, 0))
{
    PeekMessage(&msg, 0, 0, 0, 0x0001);
    switch (msg.message)
    {
    case WM_HOTKEY:
        if (msg.wParam == 1)
        {
            printf("ㅇㅋ 누름 (Hotkey Event)\n");
            int a = SendMessage(hListView, LVM_GETITEMCOUNT, 0, 0);
            int b;
            int ms = GetTickCount();
            CreateDirectory(L"C:\Users\root\Desktop\new Folder", NULL);
            //SendMessage(hListView, LVM_REDRAWITEMS, 0, a+5);
            //SendMessage(hListView, LVM_UPDATE, a, 0);
            //SHChangeNotify(SHCNE_MKDIR, SHCNF_IDLIST| SHCNF_PATHW, L"C:\Users\root\Desktop", NULL);
            while (true)
            {
                b = SendMessage(hListView, LVM_GETITEMCOUNT, 0, 0);
                if (a != b) {
                    ms = GetTickCount() - ms;
                    break;
                }
            }
            Sleep(1);
            POINT mouse;
            GetCursorPos(&mouse);
            SendMessage(hListView, LVM_SETITEMPOSITION, b - 1, MAKEWPARAM(mouse.x, mouse.y));
            SendMessage(hListView, LVM_EDITLABEL, b - 1, 0);

        }

    }
}

我认为 CreateDirectory 是问题所在，并尝试使用 NtCreateFile（用户 Space / Ring3）创建目录，但它仍然很慢。该图标在桌面上仍然显示缓慢。

是否有用于此的 WinAPI / DesktopAPI / COM / ATL？

Answer 1

这里是模拟控制台应用程序中新建...文件夹菜单的功能的代码。

打开某个文件夹的视图并在其中创建子文件夹，然后进入名称编辑模式。它使用 Shell 的 IFileOperation interface and also ATL's smart pointers 只是为了简单。

int main()
{
  CoInitialize(NULL);
  {
    CComHeapPtr<ITEMIDLIST> pidl;
    CComHeapPtr<ITEMIDLIST> newFolderPidl;
    CComPtr<IFileOperationProgressSink> sink;
    CComPtr<IFileOperation> fo;
    CComPtr<IShellItem> folder;
    LPCITEMIDLIST pidls = { nullptr };
    CFileOperationProgressSink csink;

    // get some folder's PIDL
    HRESULT hr = SHParseDisplayName(L"c:\temp", NULL, &pidl, 0, NULL);
    if (SUCCEEDED(hr))
    {
      // open it and, for demo purposes here, selects nothing (pass a terminator PIDL)
      ITEMIDLIST idl = { 0 };
      pidls = { &idl };
      hr = SHOpenFolderAndSelectItems(pidl, 1, &pidls, 0);
      if (SUCCEEDED(hr))
      {
        // get a Shell Item from this PIDL
        hr = SHCreateItemFromIDList(pidl, IID_PPV_ARGS(&folder));
      }
    }

    if (SUCCEEDED(hr))
    {
      // we want to operate on files and directory using Shell's API
      hr = fo.CoCreateInstance(CLSID_FileOperation);
      if (SUCCEEDED(hr))
      {
        csink.QueryInterface(IID_PPV_ARGS(&sink));

        // create the new folder "New Folder", using the sink
        // we need a sink to be advised of what really is the new folder
        // we can't use the name we've passed
        // because it could have been changed like 'New Folder (2)' if there's already a 'New Folder', etc.
        hr = fo->NewItem(folder, FILE_ATTRIBUTE_DIRECTORY, L"New Folder", NULL, sink);
        if (SUCCEEDED(hr))
        {
          // commit
          hr = fo->PerformOperations();
        }
      }
    }

    if (SUCCEEDED(hr))
    {
      // we want the new child's relative-to-the-parent PIDL
      CComPtr<IParentAndItem> pai;
      hr = csink.m_newItem->QueryInterface(&pai);
      if (SUCCEEDED(hr))
      {
        hr = pai->GetParentAndItem(NULL, NULL, &newFolderPidl);
      }
    }

    if (SUCCEEDED(hr))
    {
      // now, select the new child and get into name-edit mode (from the parent again)
      pidls = { newFolderPidl };
      hr = SHOpenFolderAndSelectItems(pidl, 1, &pidls, OFASI_EDIT);
    }
  }

  CoUninitialize();
  return 0;
}

// the sink. this implementation's only interested by PostNewItem
class CFileOperationProgressSink : public IFileOperationProgressSink
{
  LONG m_cRef;

public:
  CComPtr<IShellItem> m_newItem;

  CFileOperationProgressSink() : m_cRef(1)
  {
  }

  STDMETHOD(QueryInterface)(REFIID riid, void** ppv)
  {
    static const QITAB qit[] =
    {
      QITABENT(CFileOperationProgressSink, IFileOperationProgressSink),
      { 0 },
    };
    return QISearch(this, qit, riid, ppv);
  }

  STDMETHOD_(ULONG, AddRef)() { return InterlockedIncrement(&m_cRef); }
  STDMETHOD_(ULONG, Release)()
  {
    if (InterlockedDecrement(&m_cRef))
      return m_cRef;

    delete this;
    return 0;
  }

  STDMETHOD(StartOperations)() { return S_OK; };
  STDMETHOD(FinishOperations)(HRESULT hrResult) { return S_OK; };
  STDMETHOD(PreRenameItem)(DWORD dwFlags, IShellItem* psiItem, LPCWSTR pszNewName) { return S_OK; };
  STDMETHOD(PostRenameItem)(DWORD dwFlags, IShellItem* psiItem, LPCWSTR pszNewName, HRESULT hrRename, IShellItem* psiNewlyCreated) { return S_OK; };
  STDMETHOD(PreMoveItem)(DWORD dwFlags, IShellItem* psiItem, IShellItem* psiDestinationFolder, LPCWSTR pszNewName) { return S_OK; };
  STDMETHOD(PostMoveItem)(DWORD dwFlags, IShellItem* psiItem, IShellItem* psiDestinationFolder, LPCWSTR pszNewName, HRESULT hrMove, IShellItem* psiNewlyCreated) { return S_OK; };
  STDMETHOD(PreCopyItem)(DWORD dwFlags, IShellItem* psiItem, IShellItem* psiDestinationFolder, LPCWSTR pszNewName) { return S_OK; };
  STDMETHOD(PostCopyItem)(DWORD dwFlags, IShellItem* psiItem, IShellItem* psiDestinationFolder, LPCWSTR pszNewName, HRESULT hrCopy, IShellItem* psiNewlyCreated) { return S_OK; };
  STDMETHOD(PreDeleteItem)(DWORD dwFlags, IShellItem* psiItem) { return S_OK; };
  STDMETHOD(PostDeleteItem)(DWORD dwFlags, IShellItem* psiItem, HRESULT hrDelete, IShellItem* psiNewlyCreated) { return S_OK; };
  STDMETHOD(PreNewItem)(DWORD dwFlags, IShellItem* psiDestinationFolder, LPCWSTR pszNewName) { return S_OK; };
  STDMETHOD(PostNewItem)(DWORD dwFlags, IShellItem* psiDestinationFolder, LPCWSTR pszNewName, LPCWSTR pszTemplateName, DWORD dwFileAttributes, HRESULT hrNew, IShellItem* psiNewItem)
  {
    if (SUCCEEDED(hrNew))
    {
      psiNewItem->QueryInterface(&m_newItem);
    }
    return S_OK;
  }
  STDMETHOD(UpdateProgress)(UINT iWorkTotal, UINT iWorkSoFar) { return S_OK; };
  STDMETHOD(ResetTimer)() { return S_OK; };
  STDMETHOD(PauseTimer)() { return S_OK; };
  STDMETHOD(ResumeTimer)() { return S_OK; };
};

windows桌面新建文件夹c++

windows desktop new folder c++

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