Compile Updated SleepDisplay for OSX Lion

NOTE: I didn't write any of this code. I just found it and put it together.

Git here:
https://github.com/bigkm/SleepDisplay

copied the code below from the file SleepDisplay.m found here:
https://github.com/bigkm/SleepDisplay/blob/master/SleepDisplay.m

forum discussion here:

http://hintsforums.macworld.com/archive/index.php/t-142853.html

last post

This is an updated version of the code I described in this post. it is updated to wake the screen also, with a -wake argument, since Lion doesn't seem to do that now with scripted keystrokes

First:
open Textedit, paste whats between the lines below into it:
===========

// gcc -Wall SleepDisplay.c -o SleepDisplay -framework CoreFoundation -framework IOKit

// I just put that above line in to remind me what command to run in terminal

/**

 * SleepDisplay

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 * 

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 * 

 * You should have received a copy of the GNU General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>. 

 */

#import <Foundation/Foundation.h>

#import <IOKit/IOKitLib.h>

int main (int argc, const char * argv[]) {

    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    NSArray *params = [[NSProcessInfo processInfo] arguments];

    BOOL shouldWake = NO;

    for (NSString *arg in params)

    {

        if([arg isEqualToString:@"-wake"] || [arg isEqualToString:@"--wake"] || [arg isEqualToString:@"-w"])

        {

            shouldWake = YES;

        }

        

        if([arg isEqualToString:@"-help"] || [arg isEqualToString:@"--help"] || [arg isEqualToString:@"-h"])

        {

            printf("usage: SleepDisplay [-w]\n");

            printf("Without options, sleeps the display (not system sleep)\n");

            printf("use with the -w (--wake) option to wake\n");

            // quit.

            [pool drain];

            return 0;

        }

    }

    

    io_registry_entry_t entry = IORegistryEntryFromPath(kIOMasterPortDefault, "IOService:/IOResources/IODisplayWrangler");

    if(entry)

    {

        IORegistryEntrySetCFProperty(entry, CFSTR("IORequestIdle"), shouldWake ? kCFBooleanFalse : kCFBooleanTrue);

        IOObjectRelease(entry);

    }

    

    [pool drain];

    return 0;

}

===========

if you're using text edit make sure you go under format menu "Make Plain Text"

Save this file as "SleepDisplay.txt"

Second:

change the extention .txt to .c so now the file name is "SleepDisplay.c" to do this I ran in terminal:

mv SleepDisplay.txt SleepDisplay.c

Third:

Install gcc from here:
https://github.com/kennethreitz/osx-gcc-installer/

(because apple removed it or something form Lion, see:
http://superuser.com/questions/313107/does-updating-to-os-x-lion-delete-gcc)

Fourth:

run terminal in the same folder as the file and copy the next line into it & hit return:
gcc -Wall SleepDisplay.c -o SleepDisplay -framework CoreFoundation -framework IOKit

if it doesn't work you might have to use "su" first and type in your admin password then run the command again.

--- still testing but moving on to the next post, this bores me now. seems to work tho...