Hi Steven, Here is a correct snippet that works with the exact same bridgesupport file: framework 'Carbon' load_bridge_support_file('b.bridgesupport') ptr = Pointer.new("{ProcessSerialNumber=II}") GetCurrentProcess(ptr) p ptr[0].lowLongOfPSN The idea is that you want to pass a pointer to the structure, and not the sctructure itself to GetCurrentProcess :-) You can, as you said, do (almost) the same with Cocoa: framework "AppKit" info = NSWorkspace.sharedWorkspace.activeApplication puts "Serial # Low : " + info["NSApplicationProcessSerialNumberLow"].to_s puts "Serial # High: " + info["NSApplicationProcessSerialNumberHigh"].to_s However, please note that this will get the current **application** PSN, which, in case you run the script in Terminal, will be Terminal's PSN, not MacRuby's. -- Thibault Martin-Lagardette On Aug 25, 2010, at 18:20, Steven Parkes wrote:
Hope this helps :-)
Yup. I'm getting the hang of bridgesupport (coming from an MRI FFI world ...)
Any obvious reason why this doesn't seem to work?
<?xml version='1.0'?> <!DOCTYPE signatures SYSTEM "file://localhost/System/Library/DTDs/BridgeSupport.dtd "> <signatures version='0.9'> <struct name='ProcessSerialNumber' type='{ProcessSerialNumber="highLongOfPSN"I"lowLongOfPSN"I}' /> <function name='GetCurrentProcess'> <reval type='s' /> <arg type='^{ProcessSerialNumber=II}' type_modifier='o' /> </function> </signatures>
load_bridge_support_file(...) psn = ProcessSerialNumber.new GetCurrentProcess(psn) p psn
I don't see the member values getting set the way I expect: they come back as zero, which isn't right. I can see it making the call in gdb and 'o' seems right by the other examples, but?
I know (think?) I can get this information from NSWorkspace ... this was more to test my understanding and prove I could the values back I expect ... but I don't seem to be able to ... _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel