Z-order Panel
lazarus / 10-Designer

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LazaruX · 2010-02-22 19:36

Hello
I have got a TPanel (Panel1) inside of it there is a TImage (Image1)
and a TPanel (Panel2).
So Image1 and Panel 2 are both inside Panel1.
I want to adjust the Z order and have Image1 in front of Panel2. So
Panel 2 will be in the background.
When adjusting the Z order, the image is always on the background.
Why???

PS Panel1 has probably nothing to do with all this, but just mentioned
to be sure I don't miss anything.

WinXP+SP2
Win32
Lazarus 0.9.28.2
FPC 2.2.4

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Zoran · 2010-02-22 19:55

Image descends from TGraphicControl, it is not TWinControl descendant.
Unlike WinControls, GraphicControls can not receive focus and can
never be displayed in front of WinControls.

Same thing is with TLabel -- you cannot display a Label in front of
any WinControl. That's why TStaticText control is there -- it's same
as TLabel, but it can receive focus and it can be in front of other
WinControls.

It's same in Delphi. Try this with a Label and a StaticText and see
the diference.