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I dunno, equally confused. Sounds like maybe you compile but don't like, or just have not tried embedding function in the print statement. But I dunno what is a detour other than from vaporware. So providing a quick googler for equal reference to all. Now I know more about other programming techniques I dunno, such as using your adrenaline and doing trampoline as a Jedi when taking injections in the hood. (Remaining text from the following link);-) Binary Instrumentation AdrenalinX uses a technique known as 'binary instrumentation' to profile and test your application. There is not a lot of code out there that identifies how you 'inject' yourself into another process, and even less on the process of instrumentation.

The process of injection isn't easy, combining a thorough understanding of the Windows API and appropriate 'safe' coding techniques to effectively load 'my code' into another process without impacting the system and more importantly, the process to be injected. Some of research I conducted into binary instrumentation included analysis of Microsoft Corporation's 'Detours' package, and in terms of educational research comes highly recommended. Detours contains Microsoft C++ source code and helps to explain the processes involved in instrumenting an x86 based process. Further to this Delphi-Jedi's Jedi Code Library, or JCL contains Delphi Source code replicating some of the function table mapping techniques found in Microsoft's Detours package. But perhaps the most important source of information available for 'anything Windows' is 'anything Matt Pietrek'. From 1993 to 2001 Matt was lead architect of the Numega/Compuware Boundshecker product and for the past eight or nine years has been publishing Windows tips and tricks in MSDN/MSJ's 'Under the Hood' column.

Perhaps the best place to start searching is on Matt's site, or better still search for 'Matt Pietrek' through the MSDN/MSJ article archive. So, what is binary instrumentation? Put simply binary instrumentation is the process of manually altering or changing a binary image at run-time. For example re-routing function table calls within the target application such that instead of calling the original, say, Windows DLL the application would now reference your code instead (known as a detour or trampoline). Or physically changing a sequence of bytes to 0x90 (90 hex, NOP no operation mnemonic) to 'skip' a particular function or method within that binary image.

How does AdrenalinX utilise binary instrumentation? AdrenalinX uses binary instrumentation in two ways: the first is to detour or trampoline Windows API calls to monitor the number of window handles acquired and released by your application, and the second is to detour memory, class and string allocation and release code to check for memory leaks within your application. For more information on the process of instrumentation, please refer to the section on Injection. Here is what microsoft has to say about it, pretty much the same thing except for the Delphi reference (remaining text extracted snippets from the MS link/source): Detours What's New?

2nd- Create your own detour function. There's a tutorial on the Tutorial Section.

Microsoft Detours 1.5

We've just released version 1.5. Overview Detours is a library for instrumenting arbitrary Win32 functions on x86 machines. Detours intercepts Win32 functions by re-writing target function images. Binary Instrumentation Innovative systems research hinges on the ability to easily instrument and extend existing operating system and application functionality. With access to appropriate source code, it is often trivial to insert new instrumentation or extensions by rebuilding the OS or application. Oblivion shivering isles patch 1.2.0.201. However, in today's world of commercial development, and binary-only releases systems researchers seldom have access to all relevant source code.

Microsoft

Detours is a library for instrumenting arbitrary Win32 functions on x86 machines. Detours intercepts Win32 functions by re-writing target function images. The Detours package also contains utilities to attach arbitrary DLLs and data segments (called payloads) to any Win32 binary. Detours preserves the un-instrumented target function (callable through a trampoline) as a subroutine for use by the instrumentation.

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