Captions dissapear on designer after converting unit from Delphi
lazarus / 10-Designer

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Uto · 2009-04-05 12:52

Hi,

I'm trying to convert a single unit application form Delphi to
Lazarus, but after using the conversion tool, or even if I do it
manually, I have a problem:

some components like checkboxes and radiobuttons disappear, while they
are there actually. I mean, if I click on the designer where there
component it's supposed to be, I can see the border of the item, and I
can even see the caption for some milliseconds, but then it dissapears
again and I can only see like a blank panel selected.

I can change all properties, but nothing changes, and when I run the
application, none is shown.

Also, the checkbox or radio itself it's not shown, not only the
caption. And the caption of the default selected tab of a pagecontrol
is not shown till you change to another one.

Finally, when I run the application the components are not shown, but
they are there: when i click on the blank space the checkbox or
radiobutton is clicked (I notice it cause they cause effect on other
controls).

The failiing controls are all on a panel over another panel over the
main form, but there are more controls in the same place working (not
of that kind though). Also, if I paste a new checkbox/radiobutton on
same panel it works wrong too, while if I do it on the toolbox on top
of the form there is no problem.

I'm trying the same project both in windows and linux and I find the
same problem.


Does anyone know any previous experience like this that can lead me to
solve it?

Thanks.

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arnoldb · 2009-04-06 08:55

You could try to select the invisible controls in Object inspector and
change their Z-Order... (Bring to front)
Also try and change their colours - t might be that their colours are
getting mapped incorrectly.

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Martin_fr · 2009-04-06 09:31

Maybe related to:  http://bugs.freepascal.org/view.php?id=13337


Does it always happen, or only if the Checkbox is on a Panel?
Also it was not yet observed under windows....

Which version of lazarus/fpc are you using? On Linux: Which Gtk or
QT?  On Windows Qt or native?

Does it happen if you create a form by hand?