Actually, I'm a gamer and for better shooting, I wanna set a dot to the center of my MacBook screen. in some games like Call of duty or CSGO this dot help me to better shoot.
How to Center a Dot on MacBook Monitor
macbook proscreen
Related Solutions
Real FullScreen applications will normally run on the Primary Display and they will rarely allow you to configure that. Some applications, however, are running in a “false” full screen, and are just “maximized” applications on top of everything, including the dock and the MenuBar. Some of the latter can be moved by applications like SizeUp and similar (note the usage of the word ‘some’).
In order to change what your primary display is, you have to go to System Preferences -> Display and the click on the “Arrangement” Tab. And then you have to click and drag the white menubar to the display you want to make primary. Take a look at the attached picture. Remember you have to click on the white square representing the Menu Bar and drag it to the other.
The consequences of doing that is that your Dock and your Menu Bar will be moved onto the other Display.
Have a look at the free
LineIn
Inside The Lines
LineIn is a simple application for OS X to enable the soft playthru of audio from input devices. In simpler terms, you can use LineIn to play sound coming in through a microphone or any other device plugged in to your Sound In port, just as was once available with OS 9's "Play input through output device" option.
Best Answer
You need a ruler and a Marker.
Measure diagonally and place a Dot with marker in the center, that you can wash off later.