12/7/2022 0 Comments Graphical user interface builder![]() ![]() There are plenty of resources about event-based programming. ![]() then the yield function will return when the operating system is done, and you have another go around the loop.when you’re done, yield control back to the operating system (usually with some kind of special “sleep” or “select” or “yield” function call).if there is, dispatch those events to appropriate handlers.check the event queue if there’s any new events.The basic idea there is somewhat complicated, and difficult to compress, but in essence it means that not a hell of a lot is going in in your main class/main function, except: One thing they’ll all have in common, which will be different from a CLI program, is something called an event loop. They achieve this by having the same API calls on each platform, but a different implementation for those API functions that call down to the native OS API calls. There are also cross platform toolkits like GTK, Qt, and wxWidgets that help you build programs that work anywhere. Basically, you get a suite of header files and you can call functions in those imported libraries, just like you’d do with stdlib and printf.Įach operating system comes with its own GUI toolkit, suite of header files, and API calls, and their own way of doing things. Essentially, an operating system’s windowing system exposes some API calls that you can perform to do jobs like create a window, or put a button on the window. ![]()
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