EventListener for key combinations in AS3? - actionscript-3

Question

im tryin to figure out condition AND for "shortcut" for quitting standalone app from flash. I would like to push 2 keys and combination of these two keys "C+M" should quit my app.
Heres my code but its still not working. I tryed to make shure that app allow me to push multiple buttons at the same time and after that I created the function for quitting.
Any answers be great.
var keyPressedC:Boolean;
var keyPressedM:Boolean;
addEventListener(KeyboardEvent.KEY_DOWN, check_key_down,false,0,true);
addEventListener(KeyboardEvent.KEY_UP, check_key_up,false,0,true);
addEventListener(Event.ENTER_FRAME, check_keys,false,0,true);
function check_keys(event:Event):void
{
if(keyPressedC)
trace("pushed C")
if(keyPressedM)
trace("pushed M")
}
function check_key_down(event:KeyboardEvent):void
{
if(event.keyCode == 67)
keyPressedC = true;
if(event.keyCode == 77)
keyPressedM = true;
}
function check_key_up(event:KeyboardEvent):void
{
if(event.keyCode == 67)
keyPressedC = false;
if(event.keyCode == 77)
keyPressedM = false;
}
import flash.system.fscommand;
stage.addEventListener(KeyboardEvent.KEY_DOWN, enterKeyHandlercm);
function enterKeyHandlercm(event:KeyboardEvent):void
{
if (event.keyCode == Keyboard.C && event.keyCode == Keyboard.M)
{
fscommand("quit");
}
}
Edited, still not working:
var keyPressedC:Boolean;
var keyPressedM:Boolean;
addEventListener(KeyboardEvent.KEY_DOWN, check_key_down,false,0,true);
addEventListener(KeyboardEvent.KEY_UP, check_key_up,false,0,true);
addEventListener(Event.ENTER_FRAME, check_keys,false,0,true);
function check_keys(event:Event):void
{
if(keyPressedC)
trace("pushed C")
if(keyPressedM)
trace("pushed M")
}
function check_key_down(event:KeyboardEvent):void
{
if(event.keyCode == 67)
keyPressedC = true;
if(event.keyCode == 77)
keyPressedM = true;
}
function check_key_up(event:KeyboardEvent):void
{
if(event.keyCode == 67)
keyPressedC = false;
if(event.keyCode == 77)
keyPressedM = false;
}
import flash.system.fscommand;
stage.addEventListener(KeyboardEvent.KEY_DOWN, enterKeyHandlercm);
function enterKeyHandlercm(event:KeyboardEvent):void
{
if (keyPressedM == true && keyPressedC == true)
{
fscommand("quit");
}
}

Answer 1

In your enterKeyHandlercm block, your logic should be evaluating the keypressed value, not the keyCode value.
function enterKeyHandlercm(event:KeyboardEvent):void
{
if (keyPressedM == true && keyPressedC == true)
{
fscommand("quit");
}
}
With this code, a different MC is added for each of your 5 key possibilities (c up, c down , m up, m down, c+m down).
package {
import flash.display.*;
import flash.events.*;
import flash.system.fscommand;
import flash.system.System; //add this if you try System.exit(0);
public class FlashTest extends MovieClip
{
public function FlashTest()
{
var keyPressedC:Boolean;
var keyPressedM:Boolean;
// need to add eventListener to stage
// default values work fine.
stage.addEventListener(KeyboardEvent.KEY_DOWN, check_key_down);
stage.addEventListener(KeyboardEvent.KEY_UP, check_key_up);
stage.addEventListener(Event.ENTER_FRAME, check_keys);
function check_key_down(event:KeyboardEvent):void
{
if(event.keyCode == 67)
{
keyPressedC = true;
newBall(-100);
}
if(event.keyCode == 77)
{
keyPressedM = true;
newBall();
}
}
function check_key_up(event:KeyboardEvent):void
{
if(event.keyCode == 67)
{
keyPressedC = false;
newBall(-50);
}
if(event.keyCode == 77)
{
keyPressedM = false;
newBall(50);
}
}
function enterKeyHandlercm(event:KeyboardEvent):void
{
if (keyPressedM == true && keyPressedC == true)
{
newBall(100);
fscommand("quit");
// or try System.exit(0);
}
}
function newBall(x:Number=0):void
{
var ball:Sprite = new Sprite();
ball.graphics.lineStyle();
ball.graphics.beginFill(0x000000);
ball.graphics.drawCircle(0,0,20);
ball.graphics.endFill();
addChild(ball);
ball.x = stage.stageWidth/2+x;
ball.y = stage.stageHeight/2;
}
}
}
}
Please forgive my verbosity, but this way we aren't missing anything. The reason I added the ball constructor was because I only have my laptop with me so I had to use an online IDE and I don't know how to find an output window or run a debugger and it doesn't take system commands. But what I can confirm with the ball method is that when "c" and "m" are pressed together, a unique MC is instantiated. This means our code now causes flash to register a unique event when both keys are simultaneously pressed.