Difference between revisions of "Mouse drag (event)"
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Revision as of 13:25, 20 January 2013
This page needs some serious TLC, stat! Please help us by cleaning it, fixing it up, or sparing it some love.
(Reason: A demonstration on the use and handling of this event would be beneficial. AfterLifeLochie 16:00, 30 November 2012 (MSK)) |
Event mouse_drag | |
Fired when the mouse is dragged (implies that a mouse_click event has already occurred). | |
Returned Object 1 | The mouse button that was clicked. |
Returned Object 2 | The X-coordinate of the mouse (in screen-characters). |
Returned Object 3 | The Y-coordinate of the mouse (in screen-characters). |
Examples
Example | |
Print the new co-ordinates of the mouse every time a mouse_drag event occurs. | |
Code |
while true do _, button, xPos, yPos = os.pullEvent("mouse_drag") print("mouse_drag => " .. tostring(button) .. ": " .. "X: " .. tostring(xPos) .. ", " .. "Y: " .. tostring(yPos)) end |
Output | The X and Y position of the mouse during the drag. |
Example | |
Draws a single pixel on the screen, which is moved to the mouse position when mouse is clicked and dragged on the screen | |
Code |
x = 5 y = 5 while true do term.clear() term.setBackgroundColor( colors.black ) paintutils.drawPixel( x, y, colors.red ) event, button, xPos, yPos = os.pullEvent("mouse_drag") if button == 1 then -- left button was clicked x = xPos y = yPos end end |