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Yea actually draw is right as it will also get resizes. Just check at draw all the images that are now visible and load them if necessary.
You could probably check this when draw() is called.
I meant it not as a question but as a proposal to extend the existing api of Fl_Scroll, which only core devs can do.
I got now an advice to subclass it and leverage its scrollbar's callback, which sounds as a nice small solution. So perhaps there is no need to change anything.
On Friday, September 9, 2022 at 9:35:53 AM UTC+2 imacarthur wrote:
On Friday, 9 September 2022 at 08:28:23 UTC+1 jakub wrote:
I find myself needing to get notified and run custom code when scrolling is happening / stops. Currently there seems no way to achieve that. Perhaps it would be generally useful if Fl_Scroll had callback(s) triggered when its x/yposition changes.
This post is off-topic for this list (this list is about developing the library itself, not about developing using the library) and so this would be more appropriate in the fltk.general list - though I note you have cross-posted there, so I'll pick this up over there...
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