How to write a FEP

The floating window

To make the FEP control’s window float above the application, and even above any dialogs or pop-up windows that the application launches, use the following code in the control’s construction routine:

DrawableWindow()->SetOrdinalPosition(0, ECoeWinPriorityFep);

The fixed window

The FEP architecture does not enable FEPs to negotiate with the application beneath them for division of screen area.