fjeremic / hexview.wpf

A WPF control for displaying binary data in a traditional hex view.

About Me

I'm a software developer working for Qualcomm on Machine Learning (ML) compilers and ML model performance simulations and projections on Qualcomm hardware. In the past I worked for IBM Canada on the Eclipse OpenJ9 and Eclipse OMR projects as a committer where I was heavily involved in contributing code, reviewing contributions, and open-source community involvement.

My passion is system's level programming and in particular compiler development (static and dynamic), programming languages (design and implementation), machine learning, data science, parallelization, computer graphics, software protection, reverse engineering, and malware analysis.

Contact Me

• 🔗   https://jeremic.ca/
• ✉️   [email protected]
• 💬   LinkedIn

hexview.wpf's Issues

some api requirement for embedded

hi，I am using WPF to develop a GUI that aim to Embedded developing

I just want to using some hex grid view to show the memory data

and I am unable to find out any control UI to develop until I meet hexView.wpf

some there are some feature i want

1. render a virtual memory bin with special address
2. partial renewal because i need to read memory for embedded chips
3. some api to get the viewable address so that i can read those memory in less
4. double click to make the ui editable and user can edit the memory, after that,i can rewrite the data edited to chips.

i don't know how to implement because i just a newbie for c# and wpf,

so, could you please evaluate.

thanks

Is a WinUI version planned or feasable?

Your HexView is great and it would really be nice to have a WinUI or a UNO version. Would you consider these conversions?

Hex Viewer Selection Range incorrect based on selection direction

Steps to reproduce:

1. Launch Hex Viewer, select Hexadecimal, Big Endian, 1-byte, view ASCII modes

2. Set window width so 16 columns are displayed.

3. Drag select an address range starting with a LOW address to a HIGH address e.g. from 0x0010 to 0x001E. The blue selection range will show from 0x0010 to 0x001E, the last byte in the row is NOT selected.

4. Observe that the selection range in the status bar is listed as 00000010 - 0000001F which is incorrect, the high address is one too large. The length is indicated as 15 bytes which IS correct.

5. Now, select a new region from HIGH to LOW range e.g. from 0x001E to 0x0010. The selection will now correctly show the range 0000001E - 00000010 with a length of 15, which is correct.

6. This same bug manifests for all column sizes, 1,2,4, or 8 and all display modes.

Selected Offset

How to bind the selected offset to MVVM property, or better bind the selected bytes itself.

A few minor fixes & new property's I added

First off, thanks for an excellent control, this is very nicely done & documented! I found the following two bugs which were easily corrected:

1. verticalScrollBar.LargeChange = MaxVisibleRows; is set before MaxVisibleRows is determined, and thus is zero. I moved this to the UpdateMaxVisibleRowsAndColumns() function, and it appears to work as intended now.

2. In the function ReadFormattedData() case DataType.FloatingPoint where DataWidth == 8 correctly extracts 8 bytes, but converts them to a single. I think this should be a double.

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I also added a few new properties:

1. DataEndianProperty : This allows specifying big or little endian for the stream. This is implemented using an extension method for the BinaryReader that handles the byte order swaps as needed. I modified the code in the ReadFormattedData to use this property. I also added Big/Little Endian checkbox in the context menu.

2. AddressDisplayFormatProperty : This configures the address column format allowing various alternate widths and formats, 16, 24, 32, 48 and 64 bit. This just improves readability for the more common small files, if desired. Required a new function GetFormattedAddressText(ulong Addr64) and modification to CalculateAddressColumnCharWidth()

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Interestingly, I was able to back-port this to NET Framework 4.0 with minimal issues (mostly namespace changes). This lets me incorporate the control into some older projects! It IS a bit slower, but still performs well.

Now, one more thing I would like to do is programmatically select a block of data based on a start and end address. I'm not seeing any easy way to implement this, do you have any suggestions of how this should be approached?

Thanks, Gary

EDIT:
I WAS able to programmatically select a block; I had accidently specified the same start and end address which results in NO selection! I assume the reason the properties are private is because some validation is desired before externally setting them.

One other item: I added an OnMouseEnter event override that sets the focus to the control. Otherwise, if the control is hosted in a form that can receive focus, the control's keyboard events will be lost and not reconnected once the host takes the focus. Of course, there are other ways to handle this but this works!

Change view offset via binding?

First of all, I love this control!!

I want to be able to move the viewer to a predefined position when I press a button. I thought the Offset dependency property would do the job here:

<Button Command="{Binding JumpToOffsetCommand}"/>
<hv:HexViewer x:Name="hexViewer" DataSource="{Binding MemoryReader}" Offset="{Binding MemoryOffset}"/>

[ObservableProperty]
private long _memoryOffset;

[RelayCommand]
public void JumpToOffset() => MemoryOffset = 0x192;

The command is working and MemoryOffset is firing a property-changed notification as per the Community MVVM Toolkit docs, but the hex viewer doesn't move.

However, if I set the Offset property directly on the control, it works:

hexViewer.Offset = 0x192;

Is there something going on with the OffsetProperty dependency property here?

editor feature

hi is there plan to implete editor feature?

How can i disable Virtualization

sorry please close this

Multi-highlight Support?

Does your control support adding multi-highlights to various data in different colors?