Any way to shrink part of a form?
lazarus / 31-LCL

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egsuh · 2022-01-07 07:55

Hi,

Is there any way to shrink part of a form? Imagine that a form is
divided in two parts --- upper half and lower half. That is, upper and
lower half could be with each panels. And i'd like to minimize lower
part, with just a small + button remaining, and the upper part of the
form cover the whole part. Then if I press + button again, then the
lower half is restored.

I can put spilitter and reduce and expand any part. I'm looking for
ways of showing / not showing whole part, not resizing.

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balazsszekely · 2022-01-07 08:10

If I understood correctly:
  - set PanelUpper align to alClient
  - set PanleLower align to alBottom
  - set PanelLower height to 10, so the + button is visible
When you click the plus button, set the height of the lower panel to
whatever value you need:
PanelLower.Heigth := 100;
then back to 10 when needed.

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speter · 2022-01-07 09:46

For an example, have a look at the attached project.

cheers
S.

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egsuh · 2022-01-07 11:39

Thank you for the advices.
I could use GroupBox, so that just the caption of GroupBox is shown
when shrinked. But I still hope that a genuine such control is
available -- in such a way that have a small button on the right upper
corner of GroupBox, etc.