mouseUp

Type

message

Summary

Sent when the user releases the mouse button.

Syntax

mouseUp <pButtonNumber>

Description

Handle the mouseUp message to perform an action when the user releases the mouse button after clicking.

The mouseUp message is sent to the control that was clicked, or to the card if no control was under the mouse pointer.

note

If the user clicks a transparent pixel in an image, the mouseUp message is sent to the object behind the image, not to the image.

The mouseUp message is sent only when the Browse tool is being used. If an unlocked field is clicked with mouse button 1 or 2, no mouseUp message is sent.

If the mouse has moved outside the control that was originally clicked before the user releases the mouse button, the mouseRelease message is sent instead of mouseUp. If the click is the second click of a double-click, the mouseDoubleUp message is sent instead of mouseUp.

tip

If the user clicks several times in rapid succession (for example, if the user clicks an "Increase" button that increases a number by 1), some of the clicks may send a mouseDoubleUp message instead of mouseUp. If your script only handles the mouseUp message, these accidental double-clicks will be lost. One way to prevent this is to install a handler in an object that's further in the message path, to re-send double-click|double-clicks>:

    on mouseDoubleUp
      if \"on mouseUp\" is in the script of the target and \
         \"on mouseDoubleUp\" is not in the script of the target then
       send \"mouseUp\" to the target
      end if
    end mouseDoubleUp

If the user double-clicks an object whose script contains a mouseUp handler but no mouseDoubleUp, the above handler will automatically send a mouseUp to the object so the second click can be handled normally (instead of as a double-click).

Parameters

Name	Type	Description
pButtonNumber	enum	Specifies which mouse button was pressed:

Examples

on mouseUp
  answer "You clicked" && the name of the target
end mouseUp

# checking the right button
on mouseUp pBtnNum
  if pBtnNum is 3 then
    answer "You used the right button."
  end if
end mouseUp

Related

message: mouseStillDown, mouseDoubleUp, mouseRelease, mouseUpInBackdrop

property: script

command: click

function: mouseClick

glossary: field, handler, mouse button, Browse tool, message, message path, unlock, card, pixel, mouse pointer, image, object, double-click

keyword: control

Compatibility and Support

Introduced

LiveCode 1.0

OS

mac

windows

linux

ios

android

web

Platforms

desktop

server

mobile