My keyboard is showing special character, and is preventing me from entering my password. How can I stop this through a short cut on my keyboard

My keyboard is showing special character and I want to stop it. But is preventing me from login into my computer

OSX -NSTextField to show Command Key, Control Key, Shift Key, Alt Key symbol to show/edit shortcuts

I am working on an app which records shortcut for my app's functionality.

Currently, I am defining the shortcut through my code explicitly using DDHotKey.

Now I want to give user a control to define it by themselves and also want to reflect their changes in the text field along with the symbols for Modifier keys.

I want to achieve it using DDHotKey as it is working perfectly in the current version.

iPad is iCloud locked to a defunct address

I was gifted an iPad from a restaurant owner. This iPad was provided to the restaurant and used to relay orders from a third party service who would deliver their food outside their normal delivery range.

The third-party company that provided the iPad is now defunct, and the iCloud email address has been out of use for long enough to bounce emails back to me immediately.

How can I go about removing this defunct iCloud account from this iPad?

Screen resolution of MacBook Pro Retina

I have a MacBook Pro 13" Retina-display (Late 2013 model)

I recently bought a very cheap HDMI cable to plug it on my tv in my room (for Screen Mirroring and sometimes, Screen extend). Since it's cheap, I'm quite worried on a possible effect it would bring to my MacBook's resolution or display or maybe performance or at least, something.

Will it ruin my MacBook in any sort in the long run? Should I just forgo the cheap HDMI and invest on a better quality albeit being a bit more expensive, or Thunderbolt, perhaps? (Never tried Thunderbolt)

Two external keyboards, one for right hand, one for left hand, modifiers do not work

I am in my bed. MacBook (Yosemite 10.10.2) is on my chest.

I have one external keyboard (with trackpoint) for my left hand and another external keyboard for my right hand.

This would be awesome if it would work.

But the problem is that when I hold shift on the left keyboard and press P on the right keyboard then Mac writes a p instead of a capital P.

If I hold shift on the right keyboard and then p on the same keyboard then Mac writes a capital P as it should.

The same problem happens with all modifier keys:

If I try to use one modifier key on one keyboard and the to-be-modified key on the other keyboard then the result is simply the to-be-modified key unmodified.

Any idea what is causing this behaviour ?

How can one fix this ?

iMac and MacBook Air shared monitor

I have used a thunderbolt connection and pressed Command F2 to allow my track pad and keyboard on my MBA to run both screens. However, I want to use the wireless track pad and keyboard that comes with the iMac instead of the laptop track/keyboard. In other words, I would like the iMac to be the primary computer and use the laptop as a secondary screen (with all control remaining with the iMac). Is this possible?

Safari keeps warning "malicious javascript detected on this domain"

Safari keeps warning malicious javascript detected on this domain, and there is only a OK button to click. It is stupid to click OK again and again. How to prevent this?

I think the so-called malicious javascript is just some code for ads, because I saw this warning at a few websites of large company.