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using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using System.Windows.Forms;
namespace ShellDll
{
[ComImport]
[GuidAttribute("4657278B-411B-11d2-839A-00C04FD918D0")]
[InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
public interface IDropTargetHelper
{
// Notifies the drag-image manager that the drop target's IDropTarget::DragEnter method has been called
[PreserveSig]
Int32 DragEnter(
IntPtr hwndTarget,
IntPtr pDataObject,
ref ShellAPI.POINT ppt,
DragDropEffects dwEffect);
// Notifies the drag-image manager that the drop target's IDropTarget::DragLeave method has been called
[PreserveSig]
Int32 DragLeave();
// Notifies the drag-image manager that the drop target's IDropTarget::DragOver method has been called
[PreserveSig]
Int32 DragOver(
ref ShellAPI.POINT ppt,
DragDropEffects dwEffect);
// Notifies the drag-image manager that the drop target's IDropTarget::Drop method has been called
[PreserveSig]
Int32 Drop(
IntPtr pDataObject,
ref ShellAPI.POINT ppt,
DragDropEffects dwEffect);
// Notifies the drag-image manager to show or hide the drag image
[PreserveSig]
Int32 Show(
bool fShow);
}
}
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