protected override void BeforeProcess()
{
if (_actualArg == null)
{
if (_arg == null)
{
CreateDefaultArguments();
}
_actualArg = _arg as RgbWndProcessorArg;
}
CloneBitmapData();
}
/// <summary>
/// 创建缺省参数对象
/// </summary>
public override void CreateDefaultArguments()
{
_arg = new RgbWndProcessorArg();
}