2 comments

@Gavin Brock 2010-03-12 11:24:04

Based on cobbal's answer, code ported to ruby:

require 'dl';

wid = 2004

dl = DL::dlopen('/System/Library/Frameworks/ApplicationServices.framework/ApplicationServices')

_CGSDefaultConnection = dl.sym("_CGSDefaultConnection", 'I');

CGSMoveWorkspaceWindowList = dl.sym("CGSMoveWorkspaceWindowList", 'IIiII');

con = _CGSDefaultConnection.call();

CGSMoveWorkspaceWindowList.call(con[0], wid, 1, 4);

@Gavin Brock 2010-08-11 01:20:22

On 64bit, change the "I"->"L" and "IIiII" to "LLlLL"

@user681561 2011-03-29 07:31:07

I tried using this ruby script, but I get an error message that dl.sym only takes one argument. I'm running Mac OS X 10.6.6 (64bit). How should I execute your ruby script? Shouldn't I simply make a file containing the code and then running ruby myfile? Any help is much appreciated.

@Gavin Brock 2011-03-30 04:22:46

Make sure you are using /usr/bin/ruby - not some newer one: $ /usr/bin/ruby -v ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0]

@user681561 2011-04-01 19:51:53

Thank you :) Indeed I was using ruby 1.9.2. It works in ruby 1.8.7. Is it possible to change it such that it works in 1.9.2?

@Noitidart 2015-07-30 15:03:01

This is absolutely spectacular! Can you please link us to the documentation on ruby FFI, Im interested to see the types for arguments and return ie: IIiII i was wondering what they are. I am converting this to js-ctypes.

@cobbal 2010-03-03 05:18:33

Using private calls in Objective-C/C, unofficially listed here

#import <Foundation/Foundation.h>

typedef int CGSConnection;
typedef int CGSWindow;

extern OSStatus CGSMoveWorkspaceWindowList(const CGSConnection connection,
                                       CGSWindow *wids,
                                       int count,
                                       int toWorkspace);
extern CGSConnection _CGSDefaultConnection(void);


int main(int argc, char **argv) {
    CGSConnection con = _CGSDefaultConnection();

    // replace 2004 with window number
    // see link for details on obtaining this number
    // 2004 just happened to be a window I had open to test with
    CGSWindow wids[] = {2004};

    // replace 4 with number of destination space
    CGSMoveWorkspaceWindowList(con, wids, 1, 4);

    return 0;
}

Standard warnings apply about undocumented APIs: they are subject to breaking.

@Gavin Brock 2010-08-11 01:19:27

Note on 64bit, the int's are now long's

@Jed Daniels 2011-09-27 17:51:50

Can anyone give some basic instructions/steps on how to actually implement this?

@Noitidart 2015-07-30 14:20:33

Is this still the recommended way to move a window to another workspace in 2015?

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