IRichEditOleCallback::GetDragDropEffect 
Allows the client to specify the effects of a drop operation.
HRESULT GetDragDropEffect(
| BOOL fDrag, | |
| DWORD grfKeyState, | |
| LPDWORD pdwEffect | |
| ); |
Parameters
fDrag
TRUE if the query is for a IDropTarget::DragEnter or IDropTarget::DragOver FALSE if the query is for IDropTarget::Drop.
grfKeyState
Key state as defined by OLE.
pdwEffect
Pointer to the variable that contains the effect normally used by a rich edit control. On return, the variable is set to the effect to use.
Return Values
No return value.
See Also
IDropTarget::DragEnter, IDropTarget::DragOver, IDropTarget::Drop IRichEditOleCallback