图标和菜单资源疑问

[qq_32072911]

我在一个DLL模块里建立了一个窗口，有菜单有图标。如下从DLL模块资源里加载了一个窗口图标和一个菜单：
HICON hIcon = LoadIcon(hDllInst, MAKEINTRESOURCE(ICON_ID));
HMENU hMenu = LoadMenu(hDllMod, MAKEINTRESOURCE(MENU_ID));
我的问题是当DLL退出的时候，这个hIcon和和hMenu代表的图标资源和菜单资源需要释放吗？需要的话如何释放？这个句柄需要关闭吗？
之所以提这个问题主要是这个DLL可能被重复调用很多次，怕资源泄漏。

[赵4老师]

CWinApp::LoadIcon HICON LoadIcon( LPCTSTR lpszResourceName ) const; HICON LoadIcon( UINT nIDResource ) const; Return Value A handle to an icon if successful; otherwise NULL. Parameters lpszResourceName Points to a null-terminated string that contains the name of the icon resource. You can also use a CString for this argument. nIDResource ID number of the icon resource. Remarks Loads the icon resource named by lpszResourceName or specified by nIDResource from the executable file. LoadIcon loads the icon only if it has not been previously loaded; otherwise, it retrieves a handle of the existing resource. You can use the LoadStandardIcon or LoadOEMIcon member function to access the predefined Windows icons. Note This member function calls the Win32 API functionLoadIcon, which can only load an icon whose size conforms to the SM_CXICON and SM_CYICON system metric values. CWinApp Overview | Class Members | Hierarchy Chart See Also CWinApp::LoadStandardIcon, CWinApp::LoadOEMIcon,::LoadIcon CMenu::LoadMenu BOOL LoadMenu( LPCTSTR lpszResourceName ); BOOL LoadMenu( UINT nIDResource ); Return Value Nonzero if the menu resource was loaded successfully; otherwise 0. Parameters lpszResourceName Points to a null-terminated string that contains the name of the menu resource to load. nIDResource Specifies the menu ID of the menu resource to load. Remarks Loads a menu resource from the application’s executable file and attaches it to the CMenu object. Before exiting, an application must free system resources associated with a menu if the menu is not assigned to a window. An application frees a menu by calling the DestroyMenu member function. CMenu Overview | Class Members | Hierarchy Chart See Also CMenu::AppendMenu, CMenu::DestroyMenu, CMenu::LoadMenuIndirect,::LoadMenu

[qq_32072911]

谢谢关注！这两个函数用法我看了。我的疑问是在不需要的时候，需不需要做其他额外的措施显式释放资源？比如菜单句柄是否算核心资源，是否需要显式关闭。