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WPF Chart Control With Pan, Zoom and More

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10 Dec 2012Public Domain10 min read 388K   10.9K   174  
Chart Control for Microsoft .NET 3.0/WPF with pan, zoom, and offline rendering to the clipboard for custom sizes.
//Copyright (c) Microsoft Corporation.  All rights reserved.

#pragma once

#include "DirectUnknown.h"
#include "WICStructs.h"

using namespace System;

namespace  Microsoft { namespace WindowsAPICodePack { namespace DirectX { namespace WindowsImagingComponent {

/// <summary>
/// Defines methods that add the concept of writeability and static in-memory representations 
/// of bitmaps to WICBitmapSource. 
/// <para>(Also see IWICBitmap interface)</para>
/// </summary>
    public ref class WICBitmapLock :  public DirectUnknown
{
public:

    /// <summary>
    /// Gets the pointer to the top left pixel in the locked rectangle.
    /// </summary>
    /// <param name="bufferSize">The size of the buffer.</param>
    /// <returns>
    /// A pointer to the top left pixel in the locked rectangle.
    /// </returns>
    /// <remarks>
    /// The pointer provided by this method should not be used outside of the lifetime of the lock itself.
    /// GetDataPointer is not available in multi-threaded apartment applications.
    /// </remarks>
    IntPtr GetDataPointer([System::Runtime::InteropServices::Out] UInt32 % bufferSize);

    /// <summary>
    /// Retrieves a copy of the buffer data.
    /// </summary>
    /// <returns>
    /// A byte array containing the buffer data.
    /// </returns>
    array<unsigned char>^ CopyData();

    /// <summary>
    /// Retrieves the pixel width and height of the locked rectangle.
    /// </summary>
    property BitmapSize Size
    {
        BitmapSize get();
    }

    /// <summary>
    /// Gets the pixel format of for the locked area of pixels. This can be used to compute the number of bytes-per-pixel in the locked area.
    /// </summary>
    property Guid PixelFormat
    {
        Guid get();
    }

    /// <summary>
    /// Provides access to the stride value for the memory. 
    /// </summary>
    /// <remarks>
    /// Note the stride value is specific to the IWICBitmapLock, not the bitmap. 
    /// For example, two consecutive locks on the same rectangle of a bitmap may 
    /// return different pointers and stride values, depending on internal implementation. 
    /// </remarks>
    property UInt32 Stride
    {
        UInt32 get();
    }

internal:
    WICBitmapLock()
    { }  

    WICBitmapLock(IWICBitmapLock* _bitmapLock) : DirectUnknown(_bitmapLock)
    { }    
};

} } } }

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This article, along with any associated source code and files, is licensed under A Public Domain dedication


Written By
Founder Cheesy Design
Taiwan Taiwan
John graduated from the University of South Australia in 1997 with a Bachelor of Electronic Engineering Degree, and since then he has worked on hardware and software in many fields including Aerospace, Defence, and Medical giving him over 10 of years experience in C++ and C# programming. In 2009 John Started his own contracting company doing business between Taiwan and Australia.

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