>Here are some reasons that, IMO, say that keybd_event is better than SendMessage:
>
>- The bits 25-28 of the lParam for WM_KEYDOWN, WM_KEYUP, WM_CHAR, WM_SYSKEYDOWN, WM_SYSKEYUP messages are reserved. So, you don't know what their value should be.
>- Simulating the ALT key involves WM_SYSKEYDOWN and WM_SYSKEYUP. Not big deal, but one more special case.
>- Some keys generate a WM_CHAR message, some don't. Which ones do, which don't?
>
>Anyway, the keyboard messages are generated using PostMessage, not SendMessage. (PostMessage doesn't wait for an answer, while SendMessage waits for it.)
>
>And all these are already handled in a standard way by keybd_event()! One more reason: the keyboard drivers use internally keybd_event and not PostMessage directly.
>
>Any advantage in using PostMessage vs. keybd_event?
>
Hi Vlad,

You've raised a number of interesting points. Unfortunately, without doing some research, I don't have either an answer or a counter point. Perhaps someone else does. I'll try to do some of the research today, and, hopefully, maybe someone will offer some additional information.