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lockErrorDialogs

set [the] lockErrorDialogs to trueOrFalse

The lockErrorDialogs property returns or sets whether HyperCard, on encountering an error, presents an error dialog box.

This property defaults to false at idle time, meaning that error dialogs usually appear.

When this property is set to true, HyperCard, on encountering an error, does not display an error dialog box; instead, it sends the message errorDialog errorMessageText to the current card.

ErrorMessageText contains the text of the error dialog box.

Examples

set lockErrorDialogs to true
set lockErrorDialogs to false

Demo Script

on errorDemo
set the cantDelete of this card to true
set lockErrorDialogs to true
doMenu "Delete Card"
end errorDemo
-- handler in the script of this card
on errorDialog whichError
answer "Had lockErrorDialogs not been set to true," &&¬
"HyperCard would have displayed the error, “" & whichError & "”"
end errorDialog

Related Topics

Placeholders

trueOrFalse

Any expression that evaluates to the HyperTalk and AppleScript constants true or false.

For example:

true
false
the hilite of bg btn "Yes"
fld "Zip" contains "95014"
the short name of this stack is "Fred"

HyperTalk Reference

Version 0.8b4 (July 4, 2025)

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