Implement API2 Declares With Xojo on Wi…: is this $15.99 stack worth it for Writing & Publishing?

Quick answer

What you’re actually buying

If you have ever stared at a Windows API function and wondered how to safely declare it in Xojo without crashing your IDE, you know the gap between high-level RAD tools and low-level OS control is wide. I Wish Windows Declares with Xojo API2! bridges that gap. For $15.99, you are not just buying a PDF; you are buying a 1,200-page technical manual that translates C++ function signatures into working Xojo Declare statements. This is a rare resource because it does not just list the syntax; it provides over 150 complete example programs that demonstrate how to handle the memory, structures, and return values that come with tapping into the operating system directly. (Implement API2 Declares With Xojo on Windows)

The real value here is the conversion logic. The author explicitly avoids relying on outdated Visual Basic examples, which often contain misinformation or mismatched parameters. Instead, every example is converted from C++ to Xojo, ensuring the logic is robust and long-lasting. You get 31 chapters covering everything from basic file operations to complex security structures. The file is a substantial 24.8 MB download, packed with code that has been converted to both 32-bit and 64-bit, as well as ANSI and Unicode versions. This means you are not guessing which version of a function to use; the book hands you the correct Declare for your specific build environment. (Implement API2 Declares With Xojo on Windows)

Recent updates show this is a living resource, not a static archive. The September 2024 update (Version 4.7) added critical methods like GetFileSize and RtlGetVersion, while earlier versions introduced encryption functions like CryptProtectData. If you are building desktop applications that need to interact with the Windows file system, registry, or security layers, this Xojo API2 reference saves you hours of debugging. One buyer noted, “Great book. Exactly what I was looking for. Thank you!” Gumroad reviews confirm that for developers who need this specific depth, the content hits the mark.

Why it’s on our radar

This book stands out because it solves a very specific, high-friction problem: the lack of reliable, modern documentation for Windows API declarations in Xojo. Most developers rely on fragments of code found in forums or outdated VB6 references, which can lead to subtle bugs or crashes. By grounding every example in C++ and providing both ANSI and Unicode variants, this resource offers a level of precision that is hard to find elsewhere in the Xojo ecosystem. (Implement API2 Declares With Xojo on Windows)

The price point is also notable. At $15.99 for over 1,200 pages and 150+ working examples, the cost-per-page is incredibly low. It is a specialized tool for a specialized job, but for those who need to implement Declare statements for Windows, it is a comprehensive toolkit rather than a thin e-book. The fact that it is updated regularly, with free updates for 4.x owners, adds significant long-term value. (Implement API2 Declares With Xojo on Windows)

What actually matters

Before you commit, keep these three points in mind to ensure this book fits your current project: (Implement API2 Declares With Xojo on Windows)

• Skill Level: This is explicitly written for intermediate and advanced programmers. If you are new to Xojo, the jump to raw API declarations will be steep. You need a solid grasp of how memory and data structures work to get the most out of these examples. (Implement API2 Declares With Xojo on Windows)
• Platform Specificity: This is a Windows-only resource. If you are developing cross-platform apps or targeting macOS/Linux, this book will not help you. It is deeply focused on the Windows API. (Implement API2 Declares With Xojo on Windows)
• Code Conversion: Check that the examples match your target architecture. The book provides 32-bit and 64-bit versions, but you must ensure you are using the correct Declare for your specific build. The distinction between ANSI and Unicode is also critical for handling strings correctly. (Implement API2 Declares With Xojo on Windows)

Mid-check

If you are ready to start implementing Windows API functions in your Xojo apps, you can See current options.

FAQ

Is this book suitable for beginners in Xojo? No, the listing explicitly states it is for intermediate and advanced programmers. You should be comfortable with Xojo’s core features before diving into raw API declarations. (Implement API2 Declares With Xojo on Windows)

Does the book cover both 32-bit and 64-bit versions? Yes, all examples have been converted to 32-bit, 64-bit, ANSI, and Unicode versions. This is a key feature that saves you from having to guess which version of a function to use. (Implement API2 Declares With Xojo on Windows)

Are there updates included with the purchase? Yes, the book is updated regularly. The latest version (4.7) includes new examples for GetFileSize and RtlGetVersion. Owners of version 4.x receive these updates for free. (Implement API2 Declares With Xojo on Windows)

Why does the book use C++ as a reference instead of Visual Basic? The author notes that VB declare examples are becoming outdated and often contain misinformation or different parameters. Converting from C++ provides a more reliable and long-lasting alternative for Xojo developers. (Implement API2 Declares With Xojo on Windows)

Bottom line

If you are building Windows desktop applications in Xojo and you need to interact with the operating system directly, I Wish Windows Declares with Xojo API2! is a no-brainer. It is a dense, well-organized reference that saves you from the trial-and-error process of finding and testing API declarations on your own. For $15.99, you get a 1,200-page manual with 150+ working examples, all grounded in reliable C++ logic. If you are ready to take your Xojo apps to the next level by tapping into the full power of the Windows API, this is the resource to have. View on Gumroad to get your copy.