Panel:onMouseDown(button, x, y) event
This event is fired when the user press a mouse button while beeing over the Panel.
Parameters
button
A string indicating the button that has been released : "right", "middle" or "left".
x
The horizontal position of the mouse in the Panel area (zero means the left border of the widget).
y
The vertical position of the mouse in the Panel area (zero means the top border of the widget).
Return value
The event returns no value.Example
local ui = require "ui"
-- create a fixed Window
local win = ui.Window("Panel:onMouseDown() event sample", "fixed", 320, 200)
-- create a Panel
local panel = ui.Panel(win, 0, 0, 100, 100)
panel.bgcolor = 0xF0A000
panel.cursor = "cross"
panel:center()
-- set a onMouseDown() and onMouseUp() events
function panel:onMouseDown(btn, x, y)
win:status(btn:upper().." mouse button is down at "..x..", "..y)
end
function panel:onMouseUp(btn, x, y)
win:status(btn:upper().." mouse button is up at "..x..", "..y)
end
win:status("")
ui.run(win):wait()