Window.pumpmessages
From codeTank
Contents |
Description
window.pumpmessages is a vital function for the window implementation. When a window is created, it begins listening for events. Messages are delivered to the window, but are put in a queue. window.pumpmessages will take the next message on the queue, and call the appropriate event handler.
If no messages are in the queue, then window.pumpmessages will sit and wait for a message to be generated. Once a message is generated, it will call the appropriate event handler.
window.pumpmessages will always convert exactly one message into an event. If no messages exist, then it will wait for a message to be generated. If you want to perform extra processing instead of waiting around for a message, then use window.hasmessages to detect whether any messages exist, and only call window.pumpmessages if there are messages already in the queue.
Arguments
None.
Returns
None.
Example
wnd = window.create{ onpaint = function(wnd, pnt) pnt:rectangle(math.random(0, wnd.width), math.random(0, wnd.height), math.random(0, 100), math.random(0, 100), false, rgb(0, math.random(255))) end, } while window.getcount() > 0 do if (window.hasmessages()) then window.pumpmessages() else wnd:invalidate(false) syncframe(0.01) end end

