The OpenEdge Hive

based on an example by Chris Braddock

There is no real MOUSE-OVER event but this example shows one possible way to achieve the same effect.
The general idea is: use the PSTimer.OCX. Read the mouse coordinates on every tick of the timer using API-function GetCursorPos. The resulting coordinates are screen-coordinates. Then use API-function ScreenToClient to convert the screen-coordinates to client-coordinates, where "client" is the window you are interested in. Finally, test if those client coordinates are inside the client rectangle.
Attached example (in mousexy.zip) continuously shows the screen-coordinates and the client-coordinates. It also colors the frame green when the mouse moves over the frame, and colors the frame grey when the mouse moves away from the frame.
The example is based on these two API functions: GetCursorPos and ScreenToClient.

Attachments

mousexy.zip