RevokeDragDrop function (ole2.h)

Revokes the registration of the specified application window as a potential target for OLE drag-and-drop operations.

Syntax

HRESULT RevokeDragDrop(
  [in] HWND hwnd
);

[in] hwnd

Handle to a window previously registered as a target for an OLE drag-and-drop operation.

This function returns S_OK on success. Other possible values include the following.

Return code	Description
DRAGDROP_E_NOTREGISTERED	An attempt was made to revoke a drop target that has not been registered.
DRAGDROP_E_INVALIDHWND	Invalid handle returned in the hwnd parameter.
E_OUTOFMEMORY	There is insufficient memory for the operation.

When your application window is no longer available as a potential target for an OLE drag-and-drop operation, you must call RevokeDragDrop.

This function calls the IUnknown::Release method for your drop target interface.

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	ole2.h
Library	Ole32.lib
DLL	Ole32.dll