Programs released under this license can be used at no cost for both personal and commercial purposes. Open Source software is software with source code that anyone can inspect, modify or enhance. Freeware products can be used free of charge for both personal and professional (commercial use). PowerPoint uses the F15 keypress to pause a video in a slideįreeware programs can be downloaded used free of charge and without any time limitations.However, Caffeine might interfere with some apps: Of all the keypresses available, F15 is probably the least intrusive, and least likely to interfere with your work. -darkicons - use icons which work better for dark-on-light color schemesĬaffeine by Zhorn Software works by simulating an F15 key up event every 59 seconds.-oldicons - use more colorful tray icons.-keypress - simulate a full keypress, not just a key up event.Note: the codes on the linked page are in Hex, convert them to decimal for use with this parameter.-key:xx - simulate using virtual key code xx.-allowss - prevent sleep, but allow the screensaver to start.-ontaskbar - show a taskbar button (use with -showdlg).-showdlg - shows a dialog indicating whether caffeine is active.-useshift - simulate the shift key instead of F15. -noicon - does not show a task tray icon.-replace - closes the currently running instance, replacing it.-apptoggleshowdlg - toggles the running state, and shows a dialog.-apptoggle - toggles the running state of the currently running instance of the application.-appoff - makes the currently running instance of the application inactive.-appon - makes the currently running instance of the application active.-appexit - terminates current running instance of the application.-inactivefor:xx - the application will become active after xx minutes.-activefor:xx - the application will become inactive after xx minutes.-exitafter:xx - the application will terminate after xx minutes.-startoff - application starts disabled.This must be the first text on the command-line xx - where xx is a number which sets the number of seconds between simulated keypresses.There are some command-line switches you can use to alter this behavior: Double-clicking it again refills the pot and will keep your machine awake.īy default, the app starts enabled and works every 59 seconds. Double-clicking the icon empties the coffee pot (that's what the icon is) and temporarily disables the program. The icon is shown above - it's the leftmost one in the task tray, and this is all you see. It works by simulating a keypress once every 59 seconds, so your machine thinks you're still working at the keyboard, so you won't lock the screen or activate the screensaver. If you have problems with your Windows PC locking or going to sleep, the Caffeine desktop app will keep it awake.
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