unknown question

[crownfield]

still new to lazarus, and to z-orders.

I have a form with a pagecontrol on it, with two pages.
I can see the pagecontrol, and the two tabs.
on page one, I can see the radio group.
on page one show, radiogroup.bringtofront.

something changed, and the radio group is no longer responsive to the mouse.
it is visible and  enabled

breakpoints are never hit.
any idea how could I have managed that?  mouse.off??

[Blaazen]

Normally, you should not work with z-orders at all. Therefore BringToFront is not necessary.

You should place PageControl on the form, add two TabSheets and place RadioGroup on one of them. You should see it in Object Inspector that RadioGroup is on one of TabSheets. Then it will work automatically.

If RadioGroup is elsewhere, drag it by mouse in OI. Or right-click in form-designer and choose Change Parent ...

[Joanna]

Are there any circumstances in which z order is useful?