gistfile1.txt

//
//  ALIAppDelegate.m
//  123
//
//  Created by Admin on 4/4/13.
//  Copyright (c) 2013 Admin. All rights reserved.
//

#import "ALIAppDelegate.h"
#include <ApplicationServices/ApplicationServices.h>

@implementation ALIAppDelegate



CGEventRef
myCGEventCallback(CGEventTapProxy proxy, CGEventType type,
                  CGEventRef event, void *refcon)
{
    CGEventFlags eventFlags = CGEventGetFlags(event);
    if (type == kCGEventFlagsChanged) {
        printf("%lld\n", eventFlags);
    }
    // Paranoid sanity check.
    if (type != kCGEventKeyDown)
        return event;
    
    
    
    // The incoming keycode.
    CGKeyCode keycode = (CGKeyCode)CGEventGetIntegerValueField(
                                                               event, kCGKeyboardEventKeycode);
    
    
    
    printf("%d\n", keycode);
    //Keypress code goes here.
    
    // We must return the event for it to be useful.
    return event;
}

- (void)myThreadMainMethod
{
    CFMachPortRef      eventTap;
    CGEventMask        eventMask;
    CFRunLoopSourceRef runLoopSource;
    
    // Create an event tap. We are interested in key presses.
    eventMask = CGEventMaskBit(kCGEventKeyDown) | CGEventMaskBit(kCGEventKeyUp) | CGEventMaskBit(kCGEventFlagsChanged);
    eventTap = CGEventTapCreate(kCGSessionEventTap, kCGHeadInsertEventTap, 0, eventMask, myCGEventCallback, NULL);
    if (!eventTap) {
        fprintf(stderr, "failed to create event tap\n");
        exit(1);
    }
    
    // Create a run loop source.
    runLoopSource = CFMachPortCreateRunLoopSource(kCFAllocatorDefault, eventTap, 0);
    
    // Add to the current run loop.
    CFRunLoopAddSource(CFRunLoopGetCurrent(), runLoopSource,
                       kCFRunLoopCommonModes);
    
    // Enable the event tap.
    CGEventTapEnable(eventTap, true);
    
    // Set it all running.
    CFRunLoopRun();
}

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    NSThread* myThread = [[NSThread alloc] initWithTarget:self
                                                 selector:@selector(myThreadMainMethod)
                                                   object:nil];
    [myThread start];
    
        
}

@end