/// <summary>
/// Removes a taskbar progress indicator from the player.
/// </summary>
/// <param name="form">The form whose taskbar progress indicator should be removed.</param>
public int Remove(Form form)
{
if (Player._taskbarProgressEnabled)
{
if (_base._hasTaskbarProgress && form != null)
{
lock (_taskbarItems)
{
for (int index = _taskbarItems.Count - 1; index >= 0; index--)
{
if (_taskbarItems[index] == form || _taskbarItems[index] == null)
{
if (_taskbarItems[index] != null)
{
Player.TaskbarInstance.SetProgressState(_taskbarItems[index].Handle, TaskbarProgressState.NoProgress);
}
_taskbarItems.RemoveAt(index);
}
}
if (_taskbarItems.Count == 0)
{
_base._hasTaskbarProgress = false;
_base.StopMainTimerCheck();
_taskbarItems = new List <Form>(4);
}
}
}
_base._lastError = Player.NO_ERROR;
}
else
{
_base._lastError = HResult.MF_E_NOT_AVAILABLE;
}
return((int)_base._lastError);
}
