catching CM_MouseEnter, CM_MouseLeave messages

[biegleux]

Hi all,
I am developing lister plugin (in Delphi) and I want to catch CM_MOUSEENTER and CM_MOUSELEAVE messages, but the DLL's method Application.Idle is never called. (Nor Application.HandleMessage, looks like the DLL's Application object is not running the application's messages loop).

I have synchronized DLL's Application.Handle with the handle of the lister, but if the lister's OnIdle event would call some exported DLL routine which in turn call the DLL's Application.HandleMessage, I guess it would work.

But as I don't have any impact on such changes is there any other workaround for it?

Thanks for any suggestions.

[ghisler(Author)]

TC does run Application.HandleMessage, but I guess that it doesn't recognize your plugin's Delphi controls as its own. So you need to catch WM_MOUSEMOVE and WM_MOUSELEAVE instead. When you get WM_MOUSELEAVE, set a flag "outside" to true. When you get WM_MOUSEMOVE, check whether "outside" is true, and if not, you set it to true and handle your MouseEnter function.

[biegleux]

Catching WM_MOUSELEAVE and using TrackMouseEvent works as you described.

Thank you for helping.