RevokeDragDrop function

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

Syntax

HRESULT RevokeDragDrop(
  IN HWND hwnd
);

Parameters

hwnd

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

Return Value

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.

Remarks

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.

Requirements

   
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

See Also

RegisterDragDrop