Windows Error checking
Was having hard time finding this but I know I've seen it before.
It's a macro you can call a HRESULT function from and if it returns an error during program execution it gives you good debug information.
I remember it being something like this
I remember having learned about it in a win32 api tutorial but I've forgoten it and can't rememebr what it was.
You aren't thinking about the FAILED( ) macro are you? That is a generic check for failure macro.
I remember now, called the Verify() macro, but I think that's only for use with MFC??