ASCII versions of injected WIN32 API call hooks are not called

[4iK]

but their W-pedants are called.

Could this happen ? Under what circumstances ?

(PIMAGE_IMPORT_DESCRIPTOR method is used, as provided by J. Richter, so that the hook injecting itself is correct)

- Alexander

[wildfrog]

I'm not sure if I understand your question, but internally (NT, 2K, XP and above) everything is UNICODE. The ANSI versions are just wrappers converting ANSI to UNICODE - and back again.

- petter

[4iK]

i install a DrawTextA-hook into the app which do call the
DrawTextA (verified with API Monitor).
But my hook function is not called.
Instead the real DrawTextA is called as if no any hook is installed.
On the contrarily, the DrawTextW hook is getting called but this does
not help my because the app calls DrawTextW on data i am not
interested in.

Same picture this other A-hooks - they are not triggered...
But W-hooks are do getting called.

What could be the problem ?!

[pengch]

Maybe it's using LoadLibrary and GetProcAddress?