Subj : How to pass boolean value from C++ back to script? (jsapi)
To   : netscape.public.mozilla.jseng
From : jens.b
Date : Sun Jan 02 2005 09:52 am

I'm working on bug 216399 to bring the confirmEx function to XPInstall
scripts (mainly to get rid of OK/Cancel buttons for the "Install into
profile or global?" question). confirmEx allows to pass in a boolean
variable that represents the state of a checkbox in the dialog (see
[1]). However, I have not yet managed to pass the changed boolean
variable back to the install script. Note that instead of XPConnect,
js/src/jsapi.c is used within XPInstall.

Storing the converted PRBool back into the argv array does not change
the original object. I noticed that when calling confirmEx via
XPConnect, a JS Object {value:true} is used for that parameter. Does
anybody know how I would access and modify such a parameter? There is
a function named ConvertJSValToObj, but I don't understand how I
should use it here...

Best regards,
Jens

[1] http://lxr.mozilla.org/mozilla/source/embedding/components/windowwatcher/public/nsIPromptService.idl#226

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