Monthly Archives: May 2011

Breaking on Data Read

Posted on May 22, 2011 by Ofek Shilon

Edit: As of windows 10 the details and code below do not work. A working alternative is detailed at a newer post.   You’re probably familiar with Data Breakpoints, and rightfully so: It’s extremely useful to know where a value changes. … Continue reading →

Posted in Debugging, VC++, Win32 | 6 Comments

_VC80_UPGRADE and Warning RC4005 (IDR_MANIFEST Redefinition)

Posted on May 13, 2011 by Ofek Shilon

The _VC80_UPGRADE macro seems to cause some confusion around, as does the warning – ‘warning RC4005: ‘IDR_MANIFEST’ : redefinition.’ While it was tempting to try and smear these issues on two posts, fact is they are one. A disk search … Continue reading →

Posted in VC++, Visual Studio | Leave a comment

g_dwLastErrorToBreakOn: Watching Errors on VS Revisited

Posted on May 3, 2011 by Ofek Shilon

Raymond Chen posted about SetLastError recently, and an interesting discussion ensued. One comment in particular caught my eye: The easiest way to catch a specific last error value in debugger is to set ntdll!g_dwLastErrorToBreakOn to that value. A good while … Continue reading →

Posted in Debugging, Win32 | 3 Comments