/// <summary>
/// OleDoDragDrop - Call OLE Interop DoDragDrop()
/// Initiate OLE DragDrop
/// </summary>
internal void OleDoDragDrop(IComDataObject dataObject, UnsafeNativeMethods.IOleDropSource dropSource, int allowedEffects, int[] finalEffect)
{
if (Thread.CurrentThread.GetApartmentState() != ApartmentState.STA)
{
throw new ThreadStateException(SR.Get(SRID.OleServicesContext_ThreadMustBeSTA));
}
InputManager inputManager = (InputManager)Dispatcher.CurrentDispatcher.InputManager;
if (inputManager != null)
{
inputManager.InDragDrop = true;
}
try
{
UnsafeNativeMethods.DoDragDrop(dataObject, dropSource, allowedEffects, finalEffect);
}
finally
{
if (inputManager != null)
{
inputManager.InDragDrop = false;
}
}
}
public static extern int DoDragDrop(IComDataObject dataObject, UnsafeNativeMethods.IOleDropSource dropSource, int allowedEffects, int[] finalEffect);
public static extern int DoDragDrop(System.Runtime.InteropServices.ComTypes.IDataObject dataObject, UnsafeNativeMethods.IOleDropSource dropSource, int allowedEffects, int[] finalEffect);
