Scroll message for jumping through pics - where to post WM_CHAR message Options

[Guest_Klaus Breining_*]

I am further extending AMouse features. Currently PMView support is from my point of view quite good, but I am missing one feature: If I am in a directory containing multiple pics, I can jump through them using PgUp, PgDn. I would like to simulate this using the mouse wheel. I already tried to post the appropriate WM_CHAR message to different window handles in the class hierarchy, but currently without success. To shorten the "reengineering phase" just the question here, mainly to Peter, of course: where to post which message to get the desired effect?

Regards
Klaus Breining