int UnsafeNativeMethods.IOleDropTarget.OleDragEnter(object pDataObj, int grfKeyState,
UnsafeNativeMethods.POINTSTRUCT pt,
ref int pdwEffect)
{
Debug.WriteLineIf(CompModSwitches.DragDrop.TraceInfo, "OleDragEnter recieved");
NativeMethods.POINTL ptl = new NativeMethods.POINTL
{
x = pt.x,
y = pt.y
};
Debug.WriteLineIf(CompModSwitches.DragDrop.TraceInfo, "\t" + (ptl.x) + "," + (ptl.y));
Debug.Assert(pDataObj != null, "OleDragEnter didn't give us a valid data object.");
DragEventArgs drgevent = CreateDragEventArgs(pDataObj, grfKeyState, ptl, pdwEffect);
if (drgevent != null)
{
owner.OnDragEnter(drgevent);
pdwEffect = (int)drgevent.Effect;
lastEffect = drgevent.Effect;
}
else
{
pdwEffect = (int)DragDropEffects.None;
}
return(NativeMethods.S_OK);
}
int UnsafeNativeMethods.IOleDropTarget.OleDragOver(int grfKeyState, UnsafeNativeMethods.POINTSTRUCT pt, ref int pdwEffect)
{
Debug.WriteLineIf(CompModSwitches.DragDrop.TraceInfo, "OleDragOver recieved");
NativeMethods.POINTL ptl = new NativeMethods.POINTL();
ptl.x = pt.x;
ptl.y = pt.y;
Debug.WriteLineIf(CompModSwitches.DragDrop.TraceInfo, "\t" + (ptl.x) + "," + (ptl.y));
DragEventArgs drgevent = CreateDragEventArgs(null, grfKeyState, ptl, pdwEffect);
owner.OnDragOver(drgevent);
pdwEffect = (int)drgevent.Effect;
lastEffect = drgevent.Effect;
return(NativeMethods.S_OK);
}
int UnsafeNativeMethods.IOleDropTarget.OleDrop(object pDataObj, int grfKeyState, UnsafeNativeMethods.POINTSTRUCT pt, ref int pdwEffect)
{
Debug.WriteLineIf(CompModSwitches.DragDrop.TraceInfo, "OleDrop recieved");
NativeMethods.POINTL ptl = new NativeMethods.POINTL();
ptl.x = pt.x;
ptl.y = pt.y;
Debug.WriteLineIf(CompModSwitches.DragDrop.TraceInfo, "\t" + (ptl.x) + "," + (ptl.y));
DragEventArgs drgevent = CreateDragEventArgs(pDataObj, grfKeyState, ptl, pdwEffect);
if (drgevent != null)
{
owner.OnDragDrop(drgevent);
pdwEffect = (int)drgevent.Effect;
}
else
{
pdwEffect = (int)DragDropEffects.None;
}
lastEffect = DragDropEffects.None;
lastDataObject = null;
return(NativeMethods.S_OK);
}
