Function glfwGetWindowTitle 

pub unsafe extern "C" fn glfwGetWindowTitle(
    window: *mut GLFWwindow,
) -> *const i8

@brief Returns the title of the specified window.

This function returns the window title, encoded as UTF-8, of the specified window. This is the title set previously by @ref glfwCreateWindow or @ref glfwSetWindowTitle.

@param[in] window The window to query. @return The UTF-8 encoded window title, or NULL if an [error](@ref error_handling) occurred.

@errors Possible errors include @ref GLFW_NOT_INITIALIZED.

@remark The returned title is currently a copy of the title last set by @ref glfwCreateWindow or @ref glfwSetWindowTitle. It does not include any additional text which may be appended by the platform or another program.

@pointer_lifetime The returned string is allocated and freed by GLFW. You should not free it yourself. It is valid until the next call to @ref glfwGetWindowTitle or @ref glfwSetWindowTitle, or until the library is terminated.

@thread_safety This function must only be called from the main thread.

@sa @ref window_title @sa @ref glfwSetWindowTitle

@since Added in version 3.4.

@ingroup window