Camera:onMouseDown()

Camera:onMouseDown(button, x, y)event

widget only

This event is only available when the ui module is loaded before capture and Camera is used as a widget.

This event is fired when the user presses a mouse button while over the Camera widget.

Parameters

button

A string indicating which button was pressed: "left", "right", or "middle".

The horizontal position of the mouse in the Camera widget area (zero means the left border).

The vertical position of the mouse in the Camera widget area (zero means the top border).

Return value

The event returns no value.

Example


--! luart-extensions
import ui, capture

local win = ui.Window("Camera:onMouseDown() sample", "fixed", 640, 520)
local cam = ui.Camera(win, 10, 10, 620, 460)

function cam:onMouseDown(button, x, y)
    win:status(button.." button pressed at "..x..", "..y)
end

await win:showasync()