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glfwSetWindowCloseCallback

This function sets the close callback of the specified window, which is called when the user attempts to close the window, for example by clicking the close widget in the title bar.

function glfwSetWindowCloseCallback(\GLFWwindow $window, callable $callback) : void

The close flag is set before this callback is called, but you can modify it at any time with glfwSetWindowShouldClose.

The close callback is not triggered by glfwDestroyWindow.

Example: 

glfwSetWindowCloseCallback($window, function() {
    echo "Window close requested" . PHP_EOL;
});

arguments
  1. \GLFWwindow $window The window whose callback to set.
  2. callable $callback
returns

void

Copyright

This documentation page is prased from the glfw3.h header file, and only modified to fit the PHP-GFLW extension bindings. The original documentation copyright is as follows:

Copyright (c) 2002-2006 Marcus Geelnard
Copyright (c) 2006-2019 Camilla Löwy
https://www.glfw.org/license