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    <p>Whilst it's probably possible to find a solution using a combination of <code>VirtualProtect</code> and the <a href="http://msdn.microsoft.com/en-us/library/windows/desktop/ms679304%28v=vs.85%29.aspx">Windows debug interface</a>, I'm not sure it's a particularly good solution for this scenario. One of the problems is that you introduce a delay on every new write, and you are looking at a transfer to another process that is monitoring the program as a "debugger". That process will then have to "unprotect" that page, mark it as "updated" for the other Server (or Client, depending on which direction you are going), and "continue" the application making the update. This is quite time consuming. And of course, there is no trivial way to know when the writing process has completed a sequence of updates. You also need to know exactly where to "continue" when there is a SEH "__except" call, and it's not always entirely trivial do to that, especially if the code is in the middle of a memcpy or something like that. </p> <p>When I worked with graphics, I know that both our and some competitors driver would do this, first write-protect the memory, and then by hooking into the windows own page-fault handler, look up the page-fault, see if it's the special region(s), and if so, mark that page as updated and reset it to writeable. This allowed the driver to only copy the updated regions. But in this case, there is a distinct "I want to draw this stuff" after all the updates have been made. </p>
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    1. COThank you for your answer. I at least understand and convince the pain I would have to incur to accomplish my goal through the desired approach. Both your and Jerry's answer states how I can achieve it, but your answer goes beyond and throws light on the pitfall. There for I am accepting your answer.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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