Center a button

[LemonParty]

I want a button to be centered exactly to center of the form. Should I calculate position or there is another way to do this?

[cdbc]

Hi
Hmmm, I'd go with:

Code: Pascal  [Select][+][-]

1. procedure TForm1.FormCreate(Sender: TObject);
2. begin
3.   btnCenter.Left:= (Self.ClientWidth - btnCenter.Width) div 2;
4.   btnCenter.Top:= (Self.ClientHeight - btnCenter.Height) div 2;
5. end;

...dunno if there's a 'built-in'
Regards Benny

[Ally]

Hello LemonParty,

Here is an example that uses the anchor editor.

Greetings Roland

[Handoko]

Or you can try my code for resizing and centering an object on the center of a form using calculation:
https://forum.lazarus.freepascal.org/index.php/topic,43424.msg303879.html#msg303879

[JuhaManninen]

Here is an example that uses the anchor editor.

I was going to suggest anchor editor, too. I did not check the example project but setting Top and Left anchoring to the parent form should be enough.
Calculation in FormCreate works only if the form is never resized.

[Handoko]

Thank you for informing me the problem. I fixed it. I checked the date of the code I posted, it was 2018 ... I was so inexperience. :'(

[LemonParty]

Thank you.
I centered button with this code:

Code: Pascal  [Select][+][-]

1.  
2.   MyButton.AnchorVerticalCenterTo(Form1);
3.   MyButton.AnchorHorizontalCenterTo(Form1);

[n7800]

There's a great article about creating form layouts: https://wiki.freepascal.org/Autosize_/_Layout

If you are more interested in the code, then this one would be more suitable: https://wiki.freepascal.org/Anchor_Sides