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My existing desktop application is a Windows-only build that’s written entirely in C++. The core codebase is clean and stable, but several new capabilities are on the roadmap and I need an experienced developer to weave them straight into the current solution. Once we start, I’ll give you access to the repository, a short feature backlog, and the build instructions I use in Visual Studio. Typical tasks involve extending the present UI, adding small workflow utilities, and tightening a few performance-critical areas. I expect self-contained commits, clear inline comments, and a brief change log so the rest of the team can follow your work. Deliverables • Updated C++ source integrated into the existing project and compiling without warnings • All new functionality demonstrably working inside the running application • A concise markdown file summarising changes, build steps, and any extra dependencies If you’ve previously expanded Windows desktop apps in C++, let me know what you shipped and how quickly you can be available for a short onboarding call. barry-ran/QtScrcpy - [login to view URL]
Project ID: 40477873
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I've worked extensively with Qt/C++ Windows desktop applications and have shipped feature additions for projects structurally similar to QtScrcpy—extending Qt widget-based UIs, integrating ADB-related workflows, and optimizing real-time screen rendering pipelines. My approach would be to first review your repo and build environment in Visual Studio, then tackle each backlog item as a self-contained branch with clean commits, inline documentation, and zero-warning compilations. I'm comfortable working within an established codebase without disrupting stable modules, and I pay close attention to performance-critical paths like frame decoding and socket communication. I can jump on an onboarding call today and start contributing immediately after repo access.
$250 USD in 1 day
5.8
5.8
66 freelancers are bidding on average $442 USD for this job

Hello I have over 25 years of experience with C++ programming and Windows Desktop application development, it's my main specialization. Also, I have experience with qt. I have completed a lot of Windows Desktop projects, and I am able to complete your one too.
$339 USD in 7 days
8.5
8.5

⭐⭐⭐⭐⭐ Enhance Your Windows C++ Application with New Features ❇️ Hi My Friend, I hope you are doing well. I reviewed your project requirements and see you are looking for an experienced C++ developer. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for Windows desktop applications. I will integrate the new features into your existing C++ codebase, ensuring a smooth and efficient process. I will access the repository, follow your feature backlog, and use your Visual Studio build instructions. My focus will be on extending the UI, adding workflow utilities, and improving performance. ➡️ Why Me? I can easily enhance your Windows C++ application as I have 5 years of experience in C++ development, specializing in UI design, performance optimization, and feature integration. I also have a strong grip on version control systems and debugging techniques. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to our conversation! ➡️ Skills & Experience: ✅ C++ Development ✅ Windows Application ✅ UI Design ✅ Performance Optimization ✅ Version Control ✅ Debugging ✅ Feature Integration ✅ Code Documentation ✅ Workflow Utilities ✅ Software Testing ✅ Visual Studio ✅ Cross-Platform Development Waiting for your response! Best Regards, Zohaib
$350 USD in 2 days
7.9
7.9

As a seasoned developer with extensive experience in C++ Windows development, I believe I'm the perfect fit for your project. To kick off your new features, you can count on my deep knowledge of C++, which includes a strong grasp of its integration into Windows and existing applications. A test of my capabilities is my successful work with barry-ran/QtScrcpy on Github - demonstrating both my proficiency in the language and ability to deliver high-impact outputs. When it comes to working with repositories and adhering to rigorous processes like the one you've outlined, I don't miss a beat. My ability to provide clear inline comments, self-contained commits, and detailed change logs aligns perfectly with your expectations. Moreover, my background in software architecture will help me efficiently integrate all the new functionalities while maintaining a clean and stable core codebase. I assure you that by choosing me for this project you'll be getting not only top-notch coding skills but also a true team player. Given the short deadlines, I guarantee Prompt availability which will be met with clear communication at all times. I am eager to contribute to enhancing your desktop application with the expertise I have honed over years - skills that have consistently pushed the limit of functionalities in projects like yours. Together let's create an application that is richer, stronger, and all-round more capable by integrating enhanced features seamlessly!
$500 USD in 9 days
6.9
6.9

Hi I can help extend your existing Windows C++ desktop application and integrate new features directly into the current Visual Studio-based solution. My experience includes C++, Windows desktop development, Qt-based UI work, Visual Studio project setup, performance optimization, debugging, Git workflows, and clean repository-level integration. The main technical challenge is adding new UI workflows and utilities without disrupting the stable core codebase or introducing build warnings, regressions, or hard-to-maintain patches. I can solve this by first reviewing the repository structure, build instructions, and feature backlog, then implementing each update through self-contained commits with clear comments and change notes. Since QtScrcpy is Qt/C++ based, I can work carefully around the existing UI patterns, event handling, device-control flow, and performance-sensitive areas. I will also validate each feature inside the running application and keep the markdown change log clear for your team’s review. My focus will be clean C++ integration, reliable builds, and maintainable improvements that fit the existing architecture. Thanks, Hercules
$500 USD in 7 days
6.6
6.6

I would love if I get the chance to work on your project. Extending stable C++ Windows apps is exactly the kind of work I enjoy, and slotting cleanly into someone else's codebase without disturbing it is something I take pride in. I work in Visual Studio with C++ and Qt daily, so the QtScrcpy reference you shared makes the style and structure clear. I will keep commits self-contained, comment cleanly, and ship a tidy changelog so your team can follow every change without friction. Can we connect over a chat to discuss more about the project? Best, Dev S.
$700 USD in 10 days
6.4
6.4

As a proficient Full Stack Developer with over 6 years of experience, I bring a versatile skill set that compliments your needs for expanding your C++ Windows feature. While my background primarily lays in PHP, Laravel, React JS and Flutter technologies as outlined in my profile, I have successfully navigated various software development projects, and this includes significant experience with C++ coding. Especially relevant to your project, I have consistently demonstrated the ability to merge new functionalities into existing code bases efficiently - always ensuring clean and well-documented code. In addition, my strong experience with Visual Studio combined with being well-versed in C++ will guarantee timely execution within your specific build environment. Whilst fostering collaborative team environments has become second nature to me, committing self-contained changes and maintaining clear inline comments comes naturally. Based on your expectations - self-contained commits, inline comments and concise change logs - my history aligns perfectly from custom CRM solutions to cross-platform mobile applications which share some core tenets in terms of delivering clean, stable results with a focus on usability and performance.
$250 USD in 1 day
5.7
5.7

Hello, I will weave several new capabilities into your existing desktop application. Let's connect via chat and discuss this project in more detail. I am looking forward to working with you, Fahad.
$250 USD in 2 days
5.1
5.1

Hi! I hope this message finds you well. I am an experienced C++ developer with a strong background in enhancing Windows desktop applications. My expertise lies in integrating new features seamlessly into existing codebases, ensuring performance and stability are maintained while adding functionality. I would love to know more about the specific features you are looking to implement. Are there any particular performance metrics you are aiming to achieve with these updates? In a previous project, I worked on a Windows application that required the integration of a new UI component along with performance optimizations for data processing tasks. I successfully delivered these updates within the timeline by conducting thorough testing and ensuring all changes were well-documented, which facilitated a smooth transition for the team. For your project, I can help by extending the UI as per your requirements, adding workflow utilities, and optimizing critical areas for better performance. I will ensure all updates are accompanied by self-contained commits and clear inline comments, along with a concise markdown file summarizing the changes. Let’s chat to discuss your project further and align on the best approach to achieve your goals! Best regards, Heindrick
$500 USD in 7 days
5.1
5.1

My skills and experience make me a prime candidate for your C++ Windows Feature Expansion project. With several years of software development experience under my belt, I am no stranger to writing clean and reliable code in C++, as well as working with current technologies like Visual Studio. Moreover, I am well-versed in integrating new features into existing projects, having done detailed work on projects like mine (barry-ran/QtScrcpy) which you can check out on my GitHub profile. As an independent developer, I'm highly self-motivated and can provide self-contained commits with clear inline comments and concise change logs -- activities that will keep your entire team in the loop with my progress. My past experiences have sharpened my understanding and adherence to best practices in software development; therefore, your core codebase will not just receive minor updates, but improvements in performance-critical areas wherever possible. It's essential for me to actively understand and incorporate clients' business goals into their technical requirements. I'll ensure that apart from delivering functional changes, your application remains stable, compiles without warnings and generate essential documentation summarizing all the changes. Investing in me is an investment in practical innovation at its best; let's build a future-ready digital solution together!
$300 USD in 5 days
4.8
4.8

Hello, I appreciate the opportunity to bid on your project to enhance your existing C++ desktop application. I understand you are looking for an experienced developer to integrate new features into a stable codebase while maintaining clarity and performance. With over five years of experience in C++ development, particularly in extending Windows applications, I have successfully implemented new functionalities and optimized existing workflows. Familiarity with Visual Studio allows me to seamlessly navigate your build process and ensure smooth integration of new capabilities. To achieve your project goals, I propose the following approach: - Review the existing codebase and feature backlog to prioritize tasks effectively. - Implement new UI elements and workflow utilities, ensuring they are user-friendly and efficient. - Optimize performance-critical sections while maintaining code clarity with inline comments. - Provide self-contained commits and a detailed markdown file summarizing all changes and build instructions. I am eager to begin this project and confident in my ability to deliver high-quality results on time. I am available for a short onboarding call to discuss further details at your earliest convenience. Thank you for considering my bid.
$250 USD in 7 days
4.4
4.4

Hello, I am available now. I have read your project description carefully and I understand what you want. 300% Confidence!!! I have 7+ years of experience in .NET, C# Programming. I have completed similar projects. Please contact me. Best regards, Steven
$500 USD in 7 days
4.4
4.4

https://www.freelancer.com/projects/software-development/Parser-for-SQL-Migrations/reviews Please check my profile, you can notice my experience and skill about C#.NET, C++. I will try in VS2026 if you agree. But if you do not want, I can use other VS tools. Also I am familiar with git management. As someone who has gained expertise in various back-end frameworks including .NET and C# programming, I feel well-suited for your C++ Windows Feature Expansion project. My robust understanding of application architecture, along with my experience in creating scalable and high-performing web applications, positions me closely to your requirements. Best Regards
$300 USD in 7 days
4.5
4.5

Hi, I can extend your Windows-only C++/Qt desktop app directly inside the existing QtScrcpy codebase. I’ve reviewed the structure and the requested UI/workflow changes fit cleanly into the current Dialog, VideoForm, and GroupController areas. My plan is to add the phone search/filter bar, one-click activation for selected or visible devices, and automatic multi-window screen arrangement without disturbing stable core logic. I’ll keep the implementation scoped, native C++/Qt, and aligned with the current signal/slot and UI patterns. Each change will be delivered as a self-contained commit with clear comments only where the logic needs explanation.
$250 USD in 3 days
4.5
4.5

Hello I’m confident I can help with your project and integrate the new features smoothly into your existing Windows application. I’ve gone through your requirements and have a good understanding of what you’re looking for, including UI extensions, workflow utilities, performance-focused improvements, and maintaining warning-free builds. I’m also comfortable working with structured commits, inline comments, markdown documentation, and collaborative development workflows. I’ve previously worked on expanding and maintaining existing desktop applications in C++/Qt environments, including performance tuning and feature integration in long-term projects. I can also join a short onboarding call quickly and begin reviewing the repository and backlog right away. I’m excited to work with you and make this project awesome. Talk soon, Pavlo
$500 USD in 7 days
3.5
3.5

Hi there! Quick question - are you looking to maintain backward compatibility with the existing UI framework, or are you open to modernizing parts of the codebase if it makes sense for the new features? Regardless, given my past experiences, this is definitely something that I feel confident delivering on. Kind Regards, Corné
$375 USD in 7 days
3.6
3.6

Hi there, Having built a robust portfolio over the years, I am well-versed in the demands of C++ Windows app development-market. My skills align perfectly with your project requirements, especially since I have considerable experience working on .NET and C++ Programming, and I am also proficient in Qt - the same framework on which your app has been built. Drawing from my own experience as a developer, I understand that an expansive project like yours requires clear communication and seamless integration to avoid any potential mishaps or disruptions. That's why I guarantee you well-documented commits, inline comments, and a well-summarized markdown file for every stage of my work to keep everyone in your team on the same page.
$500 USD in 3 days
3.3
3.3

Hi, I can help you You want new features added to your Windows app, small tools in the screens, faster parts where it feels slow, and clear notes so your team can follow. I’ll plug into your current project, make focused changes, and keep builds clean. Each change will be tidy, tested inside the app, and explained in a short file your team can read fast. This will take a few days, I've been doing this type of work for years. I have short walkthrough videos on my Freelancer profile showing similar work. 1) What parts of the app do you have now, and how do you build it today? 2) What should the new screens and tools look like when we’re done? Ideally, we have a call and go through the details together so I can make sure I understand everything correctly, address any questions, and give you a quote and timeline. Would that work? Best, Nicolas
$500 USD in 7 days
3.4
3.4

Hi there, Exciting opportunities await as new features are set to enhance your existing Windows application! With a strong background in C++ development, the focus will be on seamlessly integrating the new capabilities into your stable codebase. The process will start with a thorough review of the existing repository and feature backlog to understand the current setup. Clear and organized commits will ensure that each new addition is easily tracked, and detailed inline comments will keep everyone in the loop. Expect well-documented changes in a concise markdown file, making future updates a breeze. Delivering updated C++ source code that compiles without warnings and demonstrates the new functionality will be the priority. This approach not only maintains the integrity of your application but also enhances its performance and usability. If you're interested in discussing this further, I'm always ready to talk.
$250 USD in 7 days
2.0
2.0

Hello There, I work in C++ for ten years. I look forward to discuss and work on your assignment. Please let me know your questions. TU
$250 USD in 7 days
3.7
3.7

Hi, Working with an existing, stable C++ application is often more about understanding the architecture than writing new code. My approach would be to first review the current solution structure, build process, and feature backlog so new functionality integrates naturally without introducing regressions or technical debt. Based on your description, the work sounds like a combination of UI enhancements, workflow improvements, and performance-focused updates. I prefer making self-contained, well-documented changes with clean commits, clear comments where necessary, and concise change logs so the rest of the team can easily review and maintain the code. I’m comfortable working in Visual Studio, Git-based workflows, Windows desktop applications, and performance-sensitive C++ codebases. The QtScrcpy reference is also helpful, as it gives a good indication of the scale and type of application involved. Once I review the repository and backlog, I can quickly estimate effort, prioritize the highest-impact items, and begin delivering features incrementally rather than waiting for one large release. I'm available for a short onboarding call and can start reviewing the codebase as soon as access is provided. Regards, Remon
$250 USD in 2 days
0.6
0.6

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