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Questions tagged [external-display]

An external display is a graphical device such as a CRT monitor, flat panel display, TV or projector, which is not built-in to the desktop computer, laptop or tablet device.

48 questions
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Is it possible to display my iPhone on my computer monitor?

As the title says, is this possible? I want to "mirror" my actions on the iPhone so it shows on the computer monitor. We've seen this on the Apple key notes, but I am not sure if this feature is public.
Bob
10
votes
3 answers

Detect external display being connected or removed under Windows 7

Is there some event or notification I can receive or hook each time an external LCD monitor is plugged in or unplugged from a laptop running Windows 7? The laptop detects this and switches my display to the external screen and back with certain…
hippietrail
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External Display feature testing in Emulator JBMR1

I have downloaded Jelly Bean MR1 SDK in eclipse and wanted to see External Display feature. In Emulator, I enabled Secondary display in "Simulate secondary displays" feature in Development Settings => It created Overlay #1 I used the API…
user1838059
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1 answer

Xorg increase virtual screen size past 8192 x 8192

I have one 4K monitor (3840 x 2160) and two QHD monitors (2560 x 1440) and I want to have them side by side. This is currently not possible though, since the horizontal virtual resolution required for this is 8960 pixels (3840+2560+2560) but the…
pazof
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5
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Adjust Brightness of External Display Mac Programmatically

Does anyone know of a way to change the brightness of an external display connected to a mac through Objective-C? (Like an Apple Thunderbolt Display or LED Cinema Display?) I have seen answers for adjusting the primary screen's brightness, but not a…
Jake Chasan
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4
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2 answers

How can I display different content on different screens in iOS 13?

I have an app that will need to connect to an external display, and I want to display different content on both screens (not just mirror the iPad screen). I have tried adding a Scene Configuration in my…
vrwim
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External monitor breaks when viewing specific content in browser

I am working through challenges on http://freecodecamp.com and I have come across a very strange "bug". When I am on a challenge (say, this one, although it happens on any challenge), if I click Help to reveal their help chat, my external monitor…
elethan
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4 answers

iPad simulator and external screen

i have an application that i wish to show on external screen. The problem is that when i go Hardware -> External displays and select one of them - the events aren't triggered. Why? This also doesn't get entered: if ([[UIScreen screens] count] >…
Developer
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2 answers

OpenGL ES and external display on iOS

I'm rendering using OpenGL ES on the main iPad (or iPhone, iPod Touch) screen, and I'd like to render on an external screen, with the content "moving over" to the external screen as soon as the user connects one (and moving back to the main screen…
Pierre Lebeaupin
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1 answer

How to check whether an external display is ON or OFF in Python?

I have a Mac Mini that is connected to a single, external display via HDMI. It is a third-party display (made by Dell); the "change brightness" function keys on the Apple keyboard have no effect the display. The display ON/OFF state is toggled…
Crickets
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3
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1 answer

Reflect UIView behavior on External Display

I'm working on an app, that uses external display. I have a lot of different views and controls that are created dynamically according to data that i get from server. So lets say that this view was created dynamically and is displayed on iPad screen…
Developer
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2 answers

Show full screen on External Display for iOS

I just want to show full screen on External Display. I'm using the code like this: - (void) startTvOut { NSArray *screens = [UIScreen screens]; CGSize max; max.width = 0; max.height = 0; UIScreenMode *maxScreenMode = nil; …
Alger
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2 answers

How To Display Custom Content On A External Screen From A iOS Device

I have created one application in Objective C. I want to implement functionality for showing selected content area of the screen on external display. For example, I have total 10 screens and I want to show 4 screens and don't want to show entire…
Monika Patel
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Screen mirror not behaving as expected (Swift)

I'm trying to implement some simple screen mirroring in my swift application but I'm getting undesired behavior. When my code executes, the external display gets the phone view but the iphone screen goes black. Also in the external view it's filled…
Seapoe
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does not show external video out in ios4

I need to send video output to an external video screen from my iphone app. I am using the Apple Composite AV Cable. I get video output when I am playing a video through the ipod app, but when I do [[UIScreen screens] count]; I only get one screen,…
aks
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