Events in Apps PPL - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: Events in Apps PPL (/thread-22667.html) |
Events in Apps PPL - marcin1812 - 11-09-2024 01:14 PM Hi, I would like to add some functionality to "Plot" App. Prime allows me to expand apps. Yes! So I want to add some new cursor functionality (for example zoom only in Y range by pressing "*", or select actual point - by pressing "enter" and add its coordinates to a list). So I need to intercept key strokes in App Plot. Question: Is there some events to utilise (like for example "OnKeyDown"), or some Listeners (like in AndroidStudio)? Another question: - Moving cursor in Plot (left, right key) has very nice feature: long click, and cursor moves itself until key is released. - I want to make something similar in PPL: In "Main Loop" i use ReadKey. But ReadKey waiting for button click. If button is still pressed, Readkey stops flow. Is there any workaround for this? Regards RE: Events in Apps PPL - Raymond Del Tondo - 11-09-2024 01:40 PM (11-09-2024 01:14 PM)marcin1812 Wrote: [..] But ReadKey waiting for button click. If button is still pressed, Readkey stops flow.ISKEYDOWN(key) RE: Events in Apps PPL - marcin1812 - 11-09-2024 01:50 PM Quote:ISKEYDOWN(key)Thanks |