On 2020-09-10 09:45, holm.h...@gmail.com wrote:
> Here is a small program, where my problem is exposed. [..]

	There's a bug in your code; you're calling Fl_Browser::textsize()
	instead of Fl_Browser::textsize().

	Change this line and it should work:

BEFORE:   if (Fl_Browser_*pB= dynamic_cast< Fl_Browser_* >(pWdg)) pB->textsize(Textsize);
 AFTER:   if (Fl_Browser*pB= dynamic_cast< Fl_Browser* >(pWdg)) pB->textsize(Textsize);


On 2020-09-10 11:46, Paul Hahn wrote:
> My *guess* about the FLTK internals here is that changing font size does
> not cause a resize of the widget *nor* its child components

	No, it wouldn't change the size of the widget, that should remain constant.

	It does update the internals, or seems to anyway when I made the above modification,
	and looking at the code for Fl_Browser::textsize() it seems to be doing the right
	recalculations.

	But the base widget doesn't do that sort of thing, only the top level class does.
	There's a reason there's an underbar on the end of "Fl_Browser_", meaning unless
	you're deriving a class, on probably shouldn't be calling it directly.

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