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Debugging D3D

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Connor Fitzgerald edited this page Oct 29, 2020 · 3 revisions

Assorted tips for debugging D3D problems.

COM

  • The refcount of a COM object is 9 32 bit words behind the pointer's destination and is 4 bytes. As such, subtract 36 from the pointer's address to get a pointer to that object's refcount. This allows you to use data breakpoints to see all changes to the object's refcount, useful for detecting leaks and other such things.
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