RevokeDragDrop

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

HRESULT RevokeDragDrop(

HWND hwnd	//Window that can accept drops
);

Parameter
hwnd
Specifies the handle to a window previously registered as a target for an OLE drag and drop operation.

Return Values
S_OK

Indicates registration as a target window was revoked successfully.

DRAGDROP_E_INVALIDHWND

Indicates invalid handle returned in the hwnd parameter.

DRAGDROP_E_NOTREGISTERED

Indicates an attempt was made to revoke a drop target that has not been registered.

E_OUTOFMEMORY

Out of memory.

Comments
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.