HRESULT IDocHostUIHandler.GetDropTarget(Ole32.IDropTarget pDropTarget, out Ole32.IDropTarget ppDropTarget)
{
// Set to null no matter what we return, to prevent the marshaller
// from having issues if the pointer points to random stuff.
ppDropTarget = null;
return(HRESULT.E_NOTIMPL);
}
private static int Drop(IntPtr thisPtr, IntPtr pDataObj, uint grfKeyState, Point pt, uint *pdwEffect)
{
Ole32.IDropTarget inst = ComInterfaceDispatch.GetInstance <Ole32.IDropTarget>((ComInterfaceDispatch *)thisPtr);
var dataObject = WinFormsComWrappers.Instance.GetOrCreateObjectForComInstance(pDataObj, CreateObjectFlags.Unwrap);
return((int)inst.Drop(dataObject, grfKeyState, pt, ref *pdwEffect));
}
private static int DragLeave(IntPtr thisPtr)
{
try
{
Ole32.IDropTarget instance = ComInterfaceDispatch.GetInstance <Ole32.IDropTarget>((ComInterfaceDispatch *)thisPtr);
return((int)instance.DragLeave());
}
catch (Exception ex)
{
Debug.WriteLine(ex);
return(ex.HResult);
}
}
private static int DragOver(IntPtr thisPtr, uint grfKeyState, Point pt, uint *pdwEffect)
{
try
{
Ole32.IDropTarget instance = ComInterfaceDispatch.GetInstance <Ole32.IDropTarget>((ComInterfaceDispatch *)thisPtr);
return((int)instance.DragOver(grfKeyState, pt, ref *pdwEffect));
}
catch (Exception ex)
{
Debug.WriteLine(ex);
return(ex.HResult);
}
}
private static int Drop(IntPtr thisPtr, IntPtr pDataObj, uint grfKeyState, Point pt, uint *pdwEffect)
{
try
{
Ole32.IDropTarget instance = ComInterfaceDispatch.GetInstance <Ole32.IDropTarget>((ComInterfaceDispatch *)thisPtr);
var dataObject = WinFormsComWrappers.Instance.GetOrCreateObjectForComInstance(pDataObj, CreateObjectFlags.Unwrap);
return((int)instance.Drop(dataObject, grfKeyState, pt, ref *pdwEffect));
}
catch (Exception ex)
{
Debug.WriteLine(ex);
return(ex.HResult);
}
}
private static int DragLeave(IntPtr thisPtr)
{
Ole32.IDropTarget inst = ComInterfaceDispatch.GetInstance <Ole32.IDropTarget>((ComInterfaceDispatch *)thisPtr);
return((int)inst.DragLeave());
}
private static int DragOver(IntPtr thisPtr, uint grfKeyState, Point pt, uint *pdwEffect)
{
Ole32.IDropTarget inst = ComInterfaceDispatch.GetInstance <Ole32.IDropTarget>((ComInterfaceDispatch *)thisPtr);
return((int)inst.DragOver(grfKeyState, pt, ref *pdwEffect));
}