Reference_Syntax.messageBox( STRING param1 [, STRING param2 [, INTEGER param3 [, INTEGER param4 ] ] ] )
param2 (Optional)
To help protect against internet spoofing, the dialog window title begins with the text “Warning: JavaScript Window -”. The window title that you specify in this parameter displays after the warning text.
param3 (Optional)
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0 (Error) – This is the default.
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1 (Warning)
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2 (Question)
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3 (Status)
param4 (Optional)
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0 (OK) – This is the default.
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1 (OK, Cancel)
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2 (Yes, No)
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3 (Yes, No, Cancel)
While param2, param3, and param4 are optional, if you want to include a particular parameter, you must also include all of the preceding parameters. For example, the following JavaScript is incorrect:
xfa.host.messageBox(“Hello World!”,3,1);
In this case you must also specify a value for param2 for the JavaScript to execute correctly.
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1 (OK)
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2 (Cancel)
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3 (No)
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4 (Yes)
Caution:
In a rendered form guide, the return value of the messageBox method is always 0, regardless of what button the user selects.
Host Model

messageBox