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Added notes on synthetic release events.
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@ -1580,6 +1580,11 @@ GLFWAPI GLFWwindowrefreshfun glfwSetWindowRefreshCallback(GLFWwindow* window, GL
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* This function sets the focus callback of the specified window, which is
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* called when the window gains or loses focus.
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*
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* After the focus callback is called for a window that lost focus, synthetic
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* key and mouse button release events will be generated for all such that had
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* been pressed. For more information, see @ref glfwSetKeyCallback and @ref
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* glfwSetMouseButtonCallback.
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*
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* @param[in] window The window whose callback to set.
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* @param[in] cbfun The new callback, or `NULL` to remove the currently set
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* callback.
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@ -1800,6 +1805,12 @@ GLFWAPI void glfwSetCursorPos(GLFWwindow* window, double xpos, double ypos);
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* layout. If you want to input text, use the [character callback](@ref
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* glfwSetCharCallback) instead.
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*
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* When a window loses focus, it will generate synthetic key release events
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* for all pressed keys. You can tell these events from user-generated events
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* by the fact that the synthetic ones are generated after the window has lost
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* focus, i.e. `GLFW_FOCUSED` will be false and the focus callback will have
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* already been called.
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*
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* @param[in] window The window whose callback to set.
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* @param[in] cbfun The new key callback, or `NULL` to remove the currently
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* set callback.
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@ -1834,6 +1845,12 @@ GLFWAPI GLFWcharfun glfwSetCharCallback(GLFWwindow* window, GLFWcharfun cbfun);
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* This function sets the mouse button callback of the specified window, which
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* is called when a mouse button is pressed or released.
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*
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* When a window loses focus, it will generate synthetic mouse button release
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* events for all pressed mouse buttons. You can tell these events from
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* user-generated events by the fact that the synthetic ones are generated
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* after the window has lost focus, i.e. `GLFW_FOCUSED` will be false and the
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* focus callback will have already been called.
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*
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* @param[in] window The window whose callback to set.
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* @param[in] cbfun The new callback, or `NULL` to remove the currently set
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* callback.
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