IShellFolder::GetUIObjectOf

[Now Supported on Windows NT]

Creates a COM object that can be used to carry out actions on the specified file objects or folders, typically, to create context menus or carry out drag-and-drop operations.

HRESULT GetUIObjectOf(

HWND hwndOwner,	// Handle to owner window
UINT cidl,	// Number of objects specified in apidl
LPCITEMIDLIST *apidl,	// Pointer to an array of pointers to an ITEMIDLIST structure
REFIID riid,	// Interface to return
UINT *prgfInOut,	// Reserved
LPVOID *ppvOut	// Address to receive interface pointer
);

Parameters

hwndOwner

Handle of the owner window that the client should specify if it displays a dialog box or message box.

cidl

Number of file objects or subfolders specified by apidl.

apidl

Pointer to an array of pointers to ITEMIDLIST structures, each of which uniquely identifies a file object or subfolder relative to the parent folder. Each item identifier list must contain exactly one SHITEMID structure followed by a terminating zero.

riid

Specifies the type and the interface of the COM object to return. This parameter can be a pointer to the IID_IExtractIcon, IID_IContextMenu, IID_IDataObject, or IID_IDropTarget interface identifier.

prgfInOut

Reserved.

ppvOut

Address that receives the interface pointer. If an error occurs, a NULL pointer is returned in this address.

Return Values

Returns NOERROR if successful or an OLE-defined error value otherwise.

Remarks

GetUIObjectOf creates a UI object to be used for specified objects. Either IID_IDataObject (transfer operations) or IID_IContextMenu (context menu operations) is passed in the riid parameter.

See Also

IShellFolder, ITEMIDLIST, SHITEMID

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