/// <summary>
/// Unregisters a listener from image events.
/// </summary>
/// <param name="listener">
/// Listener which should be unregistered.
/// </param>
/// <param name="clientData">
/// Pointer value used as parameter during the registration of the
/// listener.
/// </param>
/// <returns>
/// <c>true</c>, if the listener was unregistered successfully;
/// <c>false</c> otherwise.
/// </returns>
/// <seealso cref="VLImageWrapper"/>
public bool RemoveImageListener(ImageWrapperCallback listener,
IntPtr clientData)
{
if (this.disposed)
{
throw new ObjectDisposedException("VLWorker");
}
return(vlWorker_RemoveImageListener(this.handle, listener, clientData));
}
/// <summary>
/// Registers a listener for named image events.
/// </summary>
/// <param name="key">
/// Key of the requested image.
/// </param>
/// <param name="listener">
/// Listener which will be notified during the event processing,
/// if a named image event occurred.
/// </param>
/// <param name="clientData">
/// The listener function will be called with the given pointer value as
/// parameter.
/// </param>
/// <returns>
/// <c>true</c>, if the listener was registered successfully;
/// <c>false</c> otherwise.
/// </returns>
/// <seealso cref="VLImageWrapper"/>
public bool AddNamedImageListener(string key,
ImageWrapperCallback listener, IntPtr clientData)
{
if (this.disposed)
{
throw new ObjectDisposedException("VLWorker");
}
return(vlWorker_AddNamedImageListener(
this.handle, key, listener, clientData));
}
private static extern bool vlWorker_RemoveNamedImageListener(IntPtr worker,
[MarshalAs(UnmanagedType.LPStr)] string key,
[MarshalAs(UnmanagedType.FunctionPtr)] ImageWrapperCallback listener,
IntPtr clientData);
private static extern bool vlWorker_AddImageListener(IntPtr worker,
[MarshalAs(UnmanagedType.FunctionPtr)] ImageWrapperCallback listener,
IntPtr clientData);