Hi Michael,
I recommend not to use this argument in MacRuby at this point. it is
safer to pass a value by assigning it as an instance variable of the
observer/delegate/whatever receiver object instead, using
#instance_variable_set.
Laurent
On Jan 9, 2010, at 12:01 AM, Michael Johnston wrote:
I'm working through the PragProg Core Data book, and have
encountered an issue passing contextInfo to
NSOpenPanel.beginSheetForDirectory
This issue was discussed on the list previously by Dr. Nic:
http://www.mail-archive.com/macruby-devel@lists.macosforge.org/msg00330.html
The problem is that there doesn't seem to be a way to cast an object
pointer to a void pointer in Macruby, but when openPanel calls the
callback assigned in didEndSelector it does cast the pointer passed
in contextInfo to a void pointer, leading to a type error when the
callback is called:
{{{
2010-01-08 23:44:49.580 GrokkingRecipesRuby[34059:10b] expected
instance of Pointer of type `v', got `@'
}}}
I tried assigning my object to a Pointer.new('^v') and Pointer.new
(:uchar) but this also caused type errors.
is there any workaround for this?
Cheerio,
Michael Johnston
lastobe...@mac.com
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