public int GetCurrentSelection(out IntPtr ppHier, out uint pitemid, out IVsMultiItemSelect ppMIS, out IntPtr ppSC)
{
ppMIS = null;
ppSC = IntPtr.Zero;
MockTreeNode node = _vs._focused as MockTreeNode;
if (node == null)
{
ppHier = IntPtr.Zero;
pitemid = (uint)VSConstants.VSITEMID.Nil;
return(VSConstants.S_OK);
}
ppHier = Marshal.GetIUnknownForObject(node._item.Hierarchy);
pitemid = node._item.ItemId;
return(VSConstants.S_OK);
}
private void DragOntoThisUIThread(Key modifier, ITreeNode[] source)
{
var target = _item.Hierarchy as IVsHierarchyDropDataTarget;
if (target != null)
{
uint effect = 0;
uint keyState = GetKeyState(modifier);
source[0].Select();
for (int i = 1; i < source.Length; i++)
{
source[i].AddToSelection();
}
MockTreeNode sourceNode = (MockTreeNode)source[0];
var dropDataSource = (IVsHierarchyDropDataSource2)sourceNode._item.Hierarchy;
uint okEffects;
IDataObject data;
IDropSource dropSource;
ErrorHandler.ThrowOnFailure(dropDataSource.GetDropInfo(out okEffects, out data, out dropSource));
int hr = hr = target.DragEnter(
data,
keyState,
_item.ItemId,
ref effect
);
if (ErrorHandler.Succeeded(hr))
{
if (effect == 0)
{
return;
}
hr = target.DragOver(keyState, _item.ItemId, ref effect);
if (ErrorHandler.Succeeded(hr))
{
int cancel;
ErrorHandler.ThrowOnFailure(
dropDataSource.OnBeforeDropNotify(
data,
effect,
out cancel
)
);
if (cancel == 0)
{
hr = target.Drop(
data,
keyState,
_item.ItemId,
ref effect
);
}
int dropped = 0;
if (cancel == 0 && ErrorHandler.Succeeded(hr))
{
dropped = 1;
}
ErrorHandler.ThrowOnFailure(dropDataSource.OnDropNotify(dropped, effect));
}
}
return;
}
throw new NotImplementedException();
}
