Real world battery run time of new 15" mbp retina? (on-board graphics vs. video upgrade)

Considering a new Mac Book Pro 15" retina to use as a dedicated DAW in the studio. Primarily audio production work but would also do some video editing (Youtube videos, etc.) Will be primarily in studio but 10 - 15% in the field. (Hence the MBP rather than a desktop.) I'm looking at the top-end 15" retina maxed-out but not sure if I need or want the Nvidia GT750M graphics card.
My concern is battery run-time with the graphics card. I know Apple site claims 8 hours for the 15" retina. But their footnote states that's on a pre-production unit without the graphics upgrade. I've read multiple independent reviews of the version with graphics upgrade citing real world = 3 hour run times with "casual use". Yikes!
So I'm looking for real-world run time for the latest generation 15" retina with graphics upgrade vs. the Iris Pro option. Anybody doing audio / video work with these two options care to share your experience? I don't think the DAW software (Logic Pro X) needs the graphics card and I'd be fine with the Iris Pro on-board graphics for audio work. Video editing would of course benefit from the card (2mg graphics memory.) It's only a $100 upgrade to add the card so it's not a financial question. If real world is twice the run time without the graphics card I'll go for run time. But if it's, "4 hours Iris Pro and 3 hours Nvidia card" I'll probably go for the processing power and suffer.
Thanks!

Similar Messages

The real world battery life of a 2013 MacbookAir ?

Here is my situation. I use my Air a lot in the field (photography, and a few other things). It is the model before the 2013.
My question is, is the battery life of the 2013 model as good as it is said to be? I read reviews which say 7 hours or more of battery life, in real world conditions. This is a lot of time, a game changer.
I am definitely considering buying the new model, but only if the battery life is significantly better (my current Air is only a year old). Can anyone who used one of these fine machines give me their thoughts? Is the battery as good as claimed, is the battery life ok (I have read that the new batts have a shorter life span).
Any advice appreciated.
Ian

Ian999
is the battery life of the 2013 model as good as it is said to be?
I get 12+ hours out of mine, it depends on what you are running as the main factor
compared to my 2012 model I sold, the improvement is a bit stunning.
Ian999
I read reviews which say 7 hours or more of battery life
Again, that totally depends on WHAT you are running, ..videos, a good bit less
Ive owned 3 Air, the battery life on the new Haswell is incredible, far better than last 2012 model, as apple.com chart will indicate to you.
Youre not going to find another superslim notebook/laptop with this power that does it all with THIS kind of battery life.
Keep it plugged in when near a socket so you keep the charging cycles down on your LiPo (lithium polymer) cells / battery, but not plugged in all the time. When not being used for several hours, turn it off.
And best "tip" is if its near a socket,...plug it in as long as you can (especially at home) since cycle count on the battery are the "miles that wear out the tires (battery)", however again, not plugged in all or most of the time.
http://www.apple.com/batteries/notebooks.html
"Apple does not recommend leaving your portable plugged in all the time."
While cycle count is commonly seen to be the “miles” on your Lithium Ion pack cell in your Macbook, which they are, this distinction is not a fine line at all, and it is a big misconception to “count charge cycles”
*A person who has, for example, 300 charge cycles on their battery and is recharging at say 50-60% remaining of a 100% charge has better battery usage and care than another person who has 300 charge cycles at say 15% remaining on a 100% charge.
DoD (depth of discharge) is far more important on the wear and tear on your Macbook battery than any mere charge cycle count. *There is no set “mile” or wear from a charge cycle in general OR in specific.    As such, contrary to popular conception, counting cycles is not conclusive whatsoever, rather the amount of deep DoD on an averaged scale of its use and charging conditions.
(as a very rough analogy would be 20,000 hard miles put on a car vs. 80,000 good miles being something similar)
*Contrary to some myths out there, there is protection circuitry in your Macbook and therefore you cannot overcharge it when plugged in and already fully charged
*However if you don’t plan on using it for a few hours, turn it OFF (plugged in or otherwise) ..*You don’t want your Macbook both always plugged in AND in sleep mode       (When portable devices are charging and in the on or sleep position, the current that is drawn through the device is called the parasitic load and will alter the dynamics of charge cycle. Battery manufacturers advise against parasitic loading because it induces mini-cycles.)
Keeping batteries connected to a charger ensures that periodic "top-ups" do very minor but continuous damage to individual cells, hence Apples recommendation above:   “Apple does not recommend leaving your portable plugged in all the time”, …this is because “Li-ion degrades fastest at high state-of-charge”. This is also the same reason new Apple notebooks are packaged with 50% charges and not 100%.
LiPo (lithium polymer, same as in your Macbook) batteries do not need conditioning. However...
A lot of battery experts call the use of Lithium cells the "80% Rule" ...meaning use 80% of the charge or so, then recharge them for longer overall life.
Never let your Macbook go into shutdown and safe mode from loss of power, you can corrupt files that way, and the batteries do not like it.
The only quantified abuse seen to Lithium cells is instances when often the cells are repeatedly drained very low…. key word being "often"
The good news is that your Macbook has a safety circuit in place to insure the battery doesn’t reach too low before your Macbook will auto power-off. Bad news: if you let your Macbook protection circuitry shut down your notebook at its bottom, and you refrain from charging it for a couple days...the battery will SELF-DRAIN to zero (depending on climate and humidity)…and nothing is worse on a Lithium battery being low-discharged than self-draining down to and sitting at 0
Contrary to what some might say, Lithium batteries have an "ideal" break in period. First ten cycles or so, don't discharge down past 40% of the battery's capacity. Same way you don’t take a new car out and speed and rev the engine hard first 100 or so miles.
Proper treatment is still important. Just because LiPo batteries don’t need conditioning in general, does NOT mean they dont have an ideal use / recharge environment. Anything can be abused even if it doesn’t need conditioning.
From Apple on batteries:
http://support.apple.com/kb/HT1446
Storing your MacBook
If you are going to store your MacBook away for an extended period of time, keep it in a cool location (room temperature roughly 22° C or about 72° F). Make certain you have at least a 50% charge on the internal battery of your Macbook if you plan on storing it away for a few months; recharge your battery to 50% or so every six months roughly if being stored away. If you live in a humid environment, keep your Macbook stored in its zippered case to prevent infiltration of humidity on the internals of your Macbook which could lead to corrosion.

Does OS effective battery run time/life?

I really do not have a preference to which OS that I use, either XP Pro or Vista Business (although have never used Vista before) but I am wondering if using one verse the other would help increase and stretch the battery life. If all things being equal as far as functions, radios turned on, screen brightness and such, will one give me longer run times than the other?
I have read a few entries and there seems to be more updates, revisions and features are being developed and put into Lenovo's management systems for Vista, so I am wondering if perhaps that would have any difference as well.
One more thing, has there been any updates/upgrades since Feb or March that would make a difference in the run time of the battery life with either Vista, XP or any of the Lenovo management systems? I ask because I read the review at notebookreview and I was shocked that they only got about 3 1/2 to 4 hours of use from the X300 and the T400 is getting over 6 1/2 hours and both machines are using 6 cell batteries.

Hello DanMgy,
Vista out of the box and without tweaks like disabling aero or the sidebar may consume more power,
than an normal XP.
But Vista will give you more options to safe power, and a well tweaked Vista, seems more effective
than a normal XP. But in this case, it will problably having the look, as good old XP.
Follow @LenovoForums on Twitter! Try the forum search, before first posting: Forum Search Option
Please insert your type, model (not S/N) number and used OS in your posts.
I´m a volunteer here using New X1 Carbon, ThinkPad Yoga, Yoga 11s, Yoga 13, T430s,T510, X220t, IdeaCentre B540.
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Battery run time for Tungsten E?

What is the total run time for the battery in the Tungsten E assuming the back light is on all the time while playing a song?
Post relates to: Palm III

With a brand new T|E in early 2004 I could get about 3 hours of run time in Aeroplayer with screen off.
I doubt you can get anything like that.
It would be simpler and less time consuming for everyone if you had started one thread with ALL your T|E battery questions.
Post relates to: Palm TX

Real World Battery Life of Macbook Pro (Feb 2012)?

I keep seeing that the Macbook Pro (Feb 2012) has up to 7hrs of battery life. I can't find any real world ACTUAL use results. What have those who bought this model been getting in real world use?

I meant a June 2012 Macbook Pro.

Does OS effect battery run time/life?

I really do not have a preference to which OS that I use, either XP Pro or Vista Business (although have never used Vista before) but I am wondering if using one verse the other would help increase and stretch the battery life. If all things being equal as far as functions, radios turned on, screen brightness and such, will one give me longer run times than the other?
I have read a few entries and there seems to be more updates, revisions and features are being developed and put into Lenovo's management systems for Vista, so I am wondering if perhaps that would have any difference as well.
One more thing, has there been any updates/upgrades since Feb or March that would make a difference in the run time of the battery life with either Vista, XP or any of the Lenovo management systems? I ask because I read the review at notebookreview and I was shocked that they only got about 3 1/2 to 4 hours of use from the X300 and the T400 is getting over 6 1/2 hours and both machines are using 6 cell batteries.

As a rule of the thumb, XP gives better battery life than Vista, at least on the machines that I've had both on which would include T42p, T43p, X61s (ultralight LCD) and T61p.
Hope this helps.
Cheers,
George
In daily use: R60F, R500F, T61, T410
Collecting dust: T60
Enjoying retirement: A31p, T42p,
Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W
Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.

Poor Battery life under Bootcamp W8.1 - MBP Retina late 2013

I finally managed to get W8.1 installed under bootcamp by installing W7, upgrading to W8.0 and upgrading again to W8.1.
The battery life is pretty poor at the moment. Just simple browsing and emailing is showing 25% usgage around 1 hour. I guess this is because it's using the NVIDIA GT 750M full time, rather than the Iris Pro?
My question is... Is this something that Apple normally fixes with an update? I definately don't need the power of the GT 750M, so I'd prefer to use the Iris Pro (I'm assuming this is less power hungry!). Even if it just gave a choice, rather than automatically switching, that would be great.
Thanks

Thanks. This is the first time I've used bootcamp on a dual graphics card machine, so I wasn't aware of this 'shortcoming'. Shame, but there are worse things to worry about

Initial battery charging time for new Curve 8900

Does anyone know what should be the Initial charge time for a new 8900 Curve?
Different sites say different things.........
Thanks.

Hi and welcome to the forums!
Here is a great link on battery optimization and charging, by JSANDERS:
The newer lithium batteries are addressed.
Thanks,
Bifocals
http://www.blackberrynews.com/2008/05/20/battery-use-tips-for-your-maximum-battery-life/
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IPhone 4: connecting to TV for the 1st time with new "Composite AV Cable" only plays sound, not video on TV. However, this new cable works fine with old iPod to play videos on TV. Suggestions?

I'm trying to connect my iPhone 4 to my TV to play videos via use of a new "Composite AV Cable" but only sound will play off TV, not video. I've tried every yellow/red/white input on the TV but to no avail. Any suggestions?

The iPhone 4, unlike iPod, doesn't ask you to set for PAL or NTSC. In fact, in the SETTINGS/Video menu it only asks if you want to "Start Playing From Beginning", "Closed Captioning" and "Home Sharing". I was surprised it had no settings like the iPod at all.

MBP Retina inconsistent UI graphics / battery life

I apologize in advance for the 1,000,000th thread on this topic. I (like so many others) have noticed very inconsistent smooth/choppy graphics performance with basic UI functions of OS X 10.8.2. I have tried a number of user suggetsions to alleviate this problem including turning off dynamic switching. That seems to have only a minor improvement, and kills battery life. I'm assuming that OS X (like windows machines) scales the CPU on a notebook to improve battery life. What I have noticed, is that if you have processor intense applications running/loading, the graphics lag (ie - dock zoom) improves dramatically. Has anybody else noticed this? This would at least suggest that the current retina MBP hardware components are more than capable of producing a smooth UI experience, in contrast to what other reveiw forums have suggested. Is there a way to modify CPU throttling at least when the device is plugged in? This whole issue is not a deal-breaker for me, but it's not what I've come to expect from Apple.

Update, for some reason puting the dock on the left or right side of the screen DRAMATICALLY improves performance of both dock magnification and the genie effect. This may be a software issue.

Anyone has their battery capacity dropped considerably like me (MBP Retina)

2.5 month old macbook pro retina.
currently the capacity is less than 8000mAh (7950mAh) and is still dropping.
anyone has similar problem? and did apple replace you an intact battery? How is your replaced battery than the old one?

I ran some more diagnostics on the low battery situation and found Google Chrome to be the source of a high battery drain. Chrome wasn't an apparent battery drain source since the new significant energy consuming apps feature in OS X Mavericks also lists Safari when simply browing. To ascertain the relative magnitude of the battery drain from different browsers, I had to completely switch to using one or the other. With Safari, my battery life is in the range of 5.5 to 6 hours (browsing + intermittent high intensity apps use). This is marginally better than OS X Mountain Lion, but better nevertheless.
Complaint redacted. Looking forward to the next Google Chrome release that is compatible with OS X Mavericks.
-SDS

New bought MBP retina got slightly misaligned

To whom may concern this,
I ordered my first Macbook pro 15" retina on Aug 12th 2014 as a new semester gift for myself. It was a certified refurbished one but $1899 was still a financial burden to me. So I treated it like a newborn baby. I received it by picking it up from New Hampshire Apple center. It worked perfectly for me as far with the only thing that annoyed me a bit was that the screen is like slight-yet-still-visible-and-sensible mis-allignment with the body. It was misaligned right side.
I then Googled to see if this is a small-probility stuff or it is common. But out of my surprise, just type "unibody macbook pro retina misaligned" I got tons of posts talking exactly the same thing. What's more, from what I've found out, they seem to be the same: right sided misaligned. The difference might be a millimeter something. It was annoying.
I live and study in URI, Rhode Island, but currently I was doing a quick trip in Honolulu, Hawaii. I wonder is there any possibility to get the problem fixed. I got so overloaded by computer work this semester, and ironically, I had some symetry-design simulation work to do. So you could guess how I was feeling when I found this asymmetry problem.
My mac model is MacBook Pro with Retina display (early 2013), currently it is running OS X Mavericks.

Thank you very much! I did make a reservation in Royal Hawaii Apple Center. A Genius Bar employee told me they could do adjustment by opening the machine and do some mechanical work inside. I will drop off the macbook today and see what happens next

Trying to choose between 2013 MBA,MBP 13'' and new 2013 MBP retina 13''

Hello everyone:) im new here to apple discussions. Basically i would like to ask which laptop i should buy, 2013 Macbook Air 13'', Macbook pro 13'' or Macbook pro retina 13'' (2013). I already have a main 15' inch laptop, i just need something to have extra however, since im investing money i would like to get the worth of it (aka best config too). So even though i can say the MBA is the cheapest and i should buy that since im looking for a secondary laptop, if i can splurge a bit more to get better memory or screen ( my eyes get strained easily so screen is important) that would be great so in my mind its like this
MacBook Air:
Pros: Light,cheapest of the bunch
Cons: Does not come with enough memory, is non upgradeable :/
Macbook Pro
Pros: Upgradeable, DVD drive
Cons: Older model, Heavier, Not that good of a screen (is it les powerful than the air?)
Macbook pro retina
Pros: Great screen, Light, fastest of the bunch
Cons: Expensive/ non upgradeable
IDK WHAT TO DO :c help me?

I am not sure how you are planning to "easily utilise my iMac 2010 27" as display for Mac Mini" I am concerned that might not work out nearly as well as you might think. I have seen that attempted by others and the results were pretty clunky and could easily wipe out any anticipated speed gains. Be sure and talk to someone who uses an iMac as a display for another computer before you spend any money.
That said, if I were in your shoes I would either go with a current top end iMac or a maxed out, top end Mac mini and a 27" Thunderbolt monitor. You will end up spending about the same either way. You can save a few hundred dollars buying factory refurbished machines from the online Apple Store or Smalldog.com but you take your choice of what is available and don't expect it to be there tomorrow.

New 13" MBP Retina - Kernel Panics

I've had this computer for about 3 days now and probably have had a half dozen or so kernel panics. Below the log from the last one. Suggestions?
Interval Since Last Panic Report: 42129 sec
Panics Since Last Report:          3
Anonymous UUID:                    BD6C20F5-9D67-4406-9E8D-2EFBB0CABAA8
Thu Nov 8 21:04:12 2012
panic(cpu 3 caller 0xffffff80092b7e65): Kernel trap at 0xffffff800961b724, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0x0000000000000128, CR3: 0x0000000069a65014, CR4: 0x00000000001606e0
RAX: 0x0000000000000128, RBX: 0xffffff8020c5c408, RCX: 0xffffff801b581408, RDX: 0x00000000000000e0
RSP: 0xffffff80faf5b7e8, RBP: 0xffffff80faf5b820, RSI: 0x0000000000000128, RDI: 0x00000000ffffffff
R8: 0x0000000000a58000, R9: 0x0000000000000fff, R10: 0xffffff80faf5b4e0, R11: 0xffffff801c9883a0
R12: 0x0000000000000000, R13: 0x0000000000000001, R14: 0xffffff8021ccdba0, R15: 0xffffff8020c5a648
RFL: 0x0000000000010286, RIP: 0xffffff800961b724, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000000000128, Error code: 0x0000000000000002, Fault CPU: 0x3
Backtrace (CPU 3), Frame : Return Address
0xffffff80faf5b480 : 0xffffff800921d616
0xffffff80faf5b4f0 : 0xffffff80092b7e65
0xffffff80faf5b6c0 : 0xffffff80092cd3ad
0xffffff80faf5b6e0 : 0xffffff800961b724
0xffffff80faf5b820 : 0xffffff800931235c
0xffffff80faf5b850 : 0xffffff80092f08ec
0xffffff80faf5b8a0 : 0xffffff80092efee1
0xffffff80faf5b8e0 : 0xffffff80092f03da
0xffffff80faf5b960 : 0xffffff80092f8e68
0xffffff80faf5b9b0 : 0xffffff80092f1e02
0xffffff80faf5bcc0 : 0xffffff800956d28f
0xffffff80faf5bd20 : 0xffffff800956d48b
0xffffff80faf5be00 : 0xffffff80092f1782
0xffffff80faf5be90 : 0xffffff800956969d
0xffffff80faf5bf50 : 0xffffff80095e05da
0xffffff80faf5bfb0 : 0xffffff80092cdbf3
BSD process name corresponding to current thread: KernelEventAgent
Mac OS version:
12B2100
Kernel version:
Darwin Kernel Version 12.1.1: Fri Aug 10 16:12:30 PDT 2012; root:xnu-2050.15.57~1/RELEASE_X86_64
Kernel UUID: 47531DC5-55C9-3700-AD11-FB6A7ABCCFDD
Kernel slide:     0x0000000009000000
Kernel text base: 0xffffff8009200000
System model name: MacBookPro10,2 (Mac-AFD8A9D944EA4843)
System uptime in nanoseconds: 2291980408361
last loaded kext at 12106263888: com.apple.filesystems.smbfs          1.8 (addr 0xffffff7f8adb2000, size 229376)
last unloaded kext at 127405505960: com.apple.driver.AppleFileSystemDriver          3.0.1 (addr 0xffffff7f8acc3000, size 8192)
loaded kexts:
com.logmein.hamachi          1.0
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com.apple.driver.AudioAUUC          1.60
com.apple.iokit.IOBluetoothSerialManager          4.1.0f8
com.apple.filesystems.autofs          3.0
com.apple.driver.ApplePlatformEnabler          2.0.5d4
com.apple.driver.AGPM          100.12.77
com.apple.driver.X86PlatformShim          1.0.0
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AppleHDA          2.3.3fc8
com.apple.driver.AppleSMCPDRC          1.0.0
com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.1.0f8
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.ApplePolicyControl          3.2.7
com.apple.driver.AppleUpstreamUserClient          3.5.10
com.apple.driver.AppleIntelHD4000Graphics          8.0.2
com.apple.driver.AppleMikeyDriver          2.3.3fc8
com.apple.driver.AppleLPC          1.6.0
com.apple.driver.AppleBacklight          170.2.5
com.apple.driver.AppleMCCSControl          1.1.3
com.apple.driver.AppleIntelFramebufferCapri          8.0.2
com.apple.driver.AppleSMCLMU          2.0.2d0
com.apple.driver.SMCMotionSensor          3.0.3d1
com.apple.driver.AppleUSBTCButtons          237.1
com.apple.driver.AppleUSBTCKeyboard          237.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
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com.apple.driver.AppleEFINVRAM          1.7
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com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleACPIButtons          1.7
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com.apple.iokit.IOAudioFamily          1.8.9fc9
com.apple.kext.OSvKernDSPLib          1.6
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.1.0f8
com.apple.driver.AppleHDAController          2.3.3fc8
com.apple.iokit.IOHDAFamily          2.3.3fc8
com.apple.iokit.IOSurface          86.0.2
com.apple.iokit.IOBluetoothFamily          4.1.0f8
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.driver.AppleGraphicsControl          3.2.7
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.iokit.IONDRVSupport          2.3.6
com.apple.driver.AppleSMBusController          1.0.10d0
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Model: MacBookPro10,2, BootROM MBP102.0106.B01, 2 processors, Intel Core i7, 2.9 GHz, 8 GB, SMC 2.6f57
Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In, 768 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D5434314753364D465238432D50422020
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D5434314753364D465238432D50422020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x10F), Broadcom BCM43xx 1.0 (5.106.98.100.2)
Bluetooth: Version 4.1.0f8 10677, 2 service, 18 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SM256E, 251 GB
USB Device: hub_device, 0x8087 (Intel Corporation), 0x0024, 0x1d100000 / 2
USB Device: hub_device, 0x0424 (SMSC), 0x2512, 0x1d180000 / 3
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0259, 0x1d182000 / 5
USB Device: BRCM20702 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x1d181000 / 4
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x828c, 0x1d181300 / 6
USB Device: hub_device, 0x8087 (Intel Corporation), 0x0024, 0x1a100000 / 2
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x8510, 0x1a110000 / 3

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Run time objects

hi all,
i have a class called Shapes and when i create a new instance of this class it uses another class called ControlPanel to complete its display. The Shapes class has a method called getCanvasPane() which returns a CanvasPane object (an extension of the JPanel class i think).
The problem i have is that i want to be able to add a mouseListener to the new Shapes object, but do this from the ControlPanel class as this is where the private class which implements the MouseListener interface is coded.
i need a way of accessing the current Shapes object from the ControlPanel class, is there any way of doing this?
any help will be appreciated
thanks
david

SHAPES CLASS
public class Shapes extends JFrame
    private Container contentPane = getContentPane();
    // The CanvasPane class simply provides a blank canvas
    // for drawing the various shapes.
    private static CanvasPane shapePanel = new CanvasPane();
    // The ControlPanel provides a space in which the various
    // shapes may be created and manipulated
    private ControlPanel controlPanel = new ControlPanel();
public static CanvasPane getCanvasPane() // returns the canvas pane currently in use.
        return shapePanel;
CONTROLPANEL CLASS
public ControlPanel()
        // This code will compile but it crashes at run time
        Shapes a = new Shapes();
        CanvasPane b = a.getCanvasPane();
in the constructor of this class i need to assign a MouseListener to the CanvasPane object which is currently in use. ie. use the getCanvasPane() method, and then assign the MouseListener to it
[\CODE]
at run-time a new instance of Shapes is created which in turn creates a new instance of ControlPanel. it is the instance of Shapes that i need to be able to run the 'getCanvasPane()' method.
david

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