Redefine WCLOSE problem.

I want to redefine WCLOSE .
In my custom WCLOSE I include a dialog.
In the dialog are buttons Yes, No and Cancel.
When I activate my redefined WCLOSE by clicking the X in the drawing-tab, I have to click my Yes, No or Cancel button twice .
When I activate my redefined WCLOSE by typing WCLOSE at command line, the buttons in the dialog react on a single click.

Why does WCLOSE on the command-line not act the same as WCLOSE in Drawing-tab ?

Can I change the WCLOSE under the X in the drawing-tab into CLOSE ?
Would this solve my problem ?

I use BricsCAD V17, Windows 7

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