widget always on top

[Markandeya-2]

Hi All,
I am making a textCtrl with a BitmapButton on top of it to the right with a bitmap of a dropdown arrow. Thus it looks like a combobox. How to keep the BitmapButton always on top. The textCtrl is in a slot on a sizer that is on a panel. I read about a frame flag can be set to ontop of parent, or a dialog box can be set to ontop. So maybe i can put the BitmapButton on one of these and float it on top of its parent. What's the best way, or the ways, to keep the button or any widget on top of other widgets? Same would apply for a listCtrl that is hidden then shown and has to stay ontop of the existing showing widgets.
  Another possible solution to my problem would be to put the BitmapButton not over but next to, on the right side of,  the textCtrl. This is ok but i don't know how to make it look like it is in a border same as the textCtrl. The dropdown button of a combobox is actually inside the text part's border. I can have the textCtrl and BitmapButton as separate widgets but they must look like they share the same beveled border.
Many thanks for your ideas and help, Markandeya

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[Robin Dunn]

Markandeya wrote:

> Hi All,
> I am making a textCtrl with a BitmapButton on top of it to the right
> with a bitmap of a dropdown arrow. Thus it looks like a combobox. How to
> keep the BitmapButton always on top. The textCtrl is in a slot on a
> sizer that is on a panel. I read about a frame flag can be set to ontop
> of parent, or a dialog box can be set to ontop. So maybe i can put the
> BitmapButton on one of these and float it on top of its parent. What's
> the best way, or the ways, to keep the button or any widget on top of
> other widgets? Same would apply for a listCtrl that is hidden then shown
> and has to stay ontop of the existing showing widgets.

The behavior of overlapped sibling widgets is undefined in wx and is not
supported.  There isn't an equivalent to stay-on-top for non top-level
windows.


>   Another possible solution to my problem would be to put the
> BitmapButton not over but next to, on the right side of,  the textCtrl.
> This is ok but i don't know how to make it look like it is in a border
> same as the textCtrl. The dropdown button of a combobox is actually
> inside the text part's border. I can have the textCtrl and BitmapButton
> as separate widgets but they must look like they share the same beveled
> border.

Two possibilities:

* Try making the bitmap a child of the textctrl.  This may not work/look
perfectly on all platforms but might be good enough.

* Put both the textctrl and the bitmap button on a panel with a sizer
that positions them side-by-side.  Give the panel a style of
wx.TAB_TRAVERSAL|wx.BORDER_THEME, and use the wx.BORDER_NONE style on
the textctrl.  This will make it look like the textctrl's border is
extending around both items, but it is actually the panel's border.
This approach won't work real well on the Mac, but it should work well
on Windows and GTK.


--
Robin Dunn
Software Craftsman
http://wxPython.org

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