Sent to a scrollbar when the user Shift-clicks its decrease arrow.
# Metadata
Platforms: desktop, server, mobile OS: mac, windows, linux, ios, android Introduced: 1.0 Security:
# Syntax
scrollbarBeginning pStart
# Params
- pStart : The new position of the scrollbar thumb. This is the same as the scrollbar's <startValue> property.
# Examples
on scrollbarBeginning theStartValue -- this scroll bar controls what's in a field put theStartValue into field "Count" end scrollbarBeginning
# Description
Handle the scrollbarBeginning message if you want to respond to the use of Shift-click to move the scrollbar thumb directly to the beginning (the top or left) of the scrollbar.
Dragging the scrollbar thumb to the beginning position, or otherwise moving it to the beginning, does not send a scrollbarBeginning message.
If the scrollbarBeginning message is not handled, a scrollbarDrag message is sent in addition.
# Tags
ui,
# See
- **keyword:** scrollbar - **property:** startValue, thumbPosition - **message:** scrollbarLineDec, mouseDown, scrollbarPageDec, scrollbarEnd, scrollbarDrag - **function:** shiftKey - **glossary:** scrollbar thumb, message