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using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media.Imaging;
using Tango.RemoteDesktop.Frames;
namespace Tango.RemoteDesktop
{
/// <summary>
/// Represents a screen capture frame for holding the original bitmap and difference frame.
/// </summary>
/// <typeparam name="TFrame">The type of the frame.</typeparam>
/// <seealso cref="Tango.RemoteDesktop.Frames.RasterFrame" />
/// <seealso cref="System.IDisposable" />
public class ScreenCaptureFrame<TFrame> : RasterFrame, IDisposable where TFrame : IFrame
{
private TFrame _diffFrame;
/// <summary>
/// Initializes a new instance of the <see cref="ScreenCaptureFrame{TFrame}"/> class.
/// </summary>
/// <param name="bitmap">The bitmap.</param>
public ScreenCaptureFrame(Bitmap bitmap) : base(bitmap)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="ScreenCaptureFrame{TFrame}"/> class.
/// </summary>
/// <param name="bitmap">The bitmap.</param>
/// <param name="diffFrame">The difference frame.</param>
public ScreenCaptureFrame(Bitmap bitmap, TFrame diffFrame) : this(bitmap)
{
_diffFrame = diffFrame;
}
/// <summary>
/// Gets a value indicating whether a difference frame is available.
/// </summary>
public bool DifferenceAvailable
{
get { return _diffFrame != null; }
}
/// <summary>
/// Gets or sets the number differences.
/// </summary>
public uint DifferenceCount { get; set; }
/// <summary>
/// Returns the difference frame.
/// </summary>
/// <returns></returns>
/// <exception cref="InvalidOperationException">No difference is available at this point. Please use the 'DifferenceAvailable' property before attempting to get the difference.</exception>
public TFrame ToDifference()
{
if (!DifferenceAvailable)
{
throw new InvalidOperationException("No difference is available at this point. Please use the 'DifferenceAvailable' property before attempting to get the difference.");
}
return _diffFrame;
}
/// <summary>
/// Releases unmanaged and - optionally - managed resources.
/// </summary>
public override void Dispose()
{
base.Dispose();
if (_diffFrame != null)
{
_diffFrame.Dispose();
}
}
}
}
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