IDropTargetHelper::DragEnter method
Notifies the drag-image manager that the drop target's IDropTarget::DragEnter method has been called.
Syntax
HRESULT DragEnter( [in] HWND hwndTarget, [in] IDataObject *pDataObject, [in] POINT *ppt, [in] DWORD dwEffect );
Parameters
- hwndTarget [in]
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Type: HWND
The target's window handle.
- pDataObject [in]
-
Type: IDataObject*
A pointer to the data object's IDataObject interface.
- ppt [in]
-
Type: POINT*
The POINT structure pointer that was received in the IDropTarget::DragEnter method's pt parameter.
- dwEffect [in]
-
Type: DWORD
The value pointed to by the IDropTarget::DragEnter method's pdwEffect parameter.
Return value
Type: HRESULT
Returns S_OK if successful, or a COM error value otherwise.
Remarks
This method is called by a drop target when its IDropTarget::DragEnter method is called. It notifies the drag-image manager that the drop target has been entered, and provides it with the information needed to display the drag image.
Requirements
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Minimum supported client |
Windows 2000 Professional, Windows XP [desktop apps only] |
|---|---|
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Minimum supported server |
Windows Server 2003 [desktop apps only] |
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Header |
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IDL |
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DLL |
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See also