Scale radio button list with font size

Question

When trying to apply a custom installation mask with radio buttons (I used code provided here) I see I am unable to use higher fonts as a little spacing should be needed b

Answer 1

Checkboxes and Radio buttons created on runtime in Inno Setup do not scale their height automatically with a DPI/font size.

So you have to scale them programmatically.

...
RadioButton.Left := WizardForm.TypesCombo.Left; 
RadioButton.Height := ScaleY(RadioButton.Height);
RadioButton.Top := WizardForm.TypesCombo.Top + I * RadioButton.Height;
...

The ScaleY(RadioButton.Height) takes the default combobox/radiobutton height, which is designed for the default font and no display scaling (100%) and scales that to the custom font and actual display scaling.

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Though note that using a non-default font-size for your application/setup is not a good idea. The user should choose a font size he/she is comfortable with in Windows preferences. You should not override his/her choice.

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When changing the font size, do not modify the shared default.isl, use the [LangOptions] section of your project file instead:

[LangOptions]
DialogFontSize=20