is it possible to detect the color temperature settings of a monitor or display with css, javascript, html5, silverlight, java, flash, or anything that could be used on the web?
no problem if it's not working for all the cases, I am interested in everything.
if it is not possible right now at all, is there work in progress for this field (under what name)?
No, there isn't any way to detect this from web-based tools. In fact, there isn't really any way to detect this (in general) from a computer at all. You can change your monitor's settings all you like and your computer never knows the difference. It just sends the video signal down the cord and doesn't really care what the monitor does with it.
There is some information that goes back from the monitor to the computer, but in general color temperature is not included in that information.
However, some platforms that are more integrated, like many Apple products, may have a way to get this information from the system, but it would likely need to be a native application that has access to low-level system APIs, which most frameworks (especially web ones), including those you mentioned, tend not to have access to.
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Most questions about this topic ask "How can I use language X or library Y to get hardware information".
I want to know if this is possible AT ALL using only a browser without installing third party .exe's which are scary for most people and today are automatically labelled as "dangerous" by chrome.
Obviously i'd prefer not to use extensions, but if its possible using extensions, i'd like to know.
Generally speaking, no, you cannot get direct hardware information on a user for security reasons, and this is unlikely to change as it would be a serious privacy issue (specific hardware could be used to uniquely identify specific users).
You can get some limited information though, like the OS type, version, and architecture found in the user agent string and navigator.platform. You can also feature-detect certain functionality like touch screens, or WebGL graphics card comparability.
Generally, your webpages shouldn't need to know information about a user's hardware, and should "just work" on a variety of hardware, even hardware you don't know about or has yet to be invented. If there is something specific you think you need to detect, I'd recommend asking a specific question about that feature.
I understand that in Linux a windowing system (X11, Wayland etc.) is responsible for rendering applications on the screen. I experimented with X11 but never got past obtaining single windows. I also read about Wayland. My question is, if I want to write an application that grabs whatever is shown on the screen, is there a way to get it on such a low-level (drm, dri, kms) that I am not dependent on the windowing system? What choices do these low-level APIs give me compared to the windowing system?
EDIT: I realized reading this that "One of the features of Wayland is its security design, which helps to guard the user against malicious apps. Apps can no longer see everything on the screen and spy on you. But that also means you cannot run a common application (like shutter or gtk-recordmydesktop) and use it to make a screenshot or a screencast of your desktop".
I have an application requirement where certain audio settings need to be made at the hardware level rather than the session level. I have been able to hit most of the areas in question using a third party API. However, a new requirement has come up and I'm having trouble accessing the setting.
We are primarily on Win7 systems though Win10 is not out of scope. We need to be able to disable Line-In as it appears to be causing some interference with the later run session recordings that are made.
Our working environment includes multiple systems/locations. The application that handles recordings is specialized and cannot be changed for something like a base setting. Also, with newer systems the line-in and rear microphone are a combined plug and, when used, the OS asks which way you want to use it.
I realize that changing audio settings and the hardware level can be problematic but any help or suggestions would be greatly appreciated as this project needs to completed as quickly as possible.
Is there a (open source or commercial) software solution available for the Linux platform to build a custom embedded navigation device? It should be able to display maps and do routing (just like a TomTom/Navigon/Garmin/... navi device).
Unfortunately all navigation solutions seem to target Windows CE only.
Something based on OpenStreeMap data is not an option, because the map data is IMHO not always good enough for serious routing / driving instructions.
Since I'm searching for a long time now without luck I'm not too restrictive on the implementation details, however it should be possible to extend the software with custom functions or ideally embed the navigation in my own software.
Android with Google Maps comes to my mind, but I'd like to avoid setting up Android for my device.
Alternatively, if there is no such solution, I might use a end-user navigation device if that allows me some kind of communication with my own device to control it.
I'm open for any suggestions, thanks..
There is a huge list here. Take a look if anything suites your needs.
I'm looking for options to replace and old application running in a Psion Workabout mx handheld, developed in OPL.
The handheld and the application (developed more than 10 years ago) are both working fine
by now, but the device is discontinued, and each time is harder to find replacement parts for it.
Then I started to look to the newer Psion handheld models, but they are expensive and
filled with features that I don't need at all (color screen, barcode reader, ...). Also,
they look a lot less rugged than the actual Workabout mx that I'm using. I had to replace
around 50 handhelds, and i'm looking for good options with this features:
Reasonable priced
Fast numeric data entry, optionally alphanumeric data (not usual)
Readable screen, with at least 7 lines of text visible. No color needed
Rugged
Replacement parts available
Reasonable development environment (handheld emulator, IDE, minimal GUI support, PC / handheld connectivity)
Maybe an old mobile phone with Java support can do the work?
Please indicate the suggested device model and the development options available for it.
Thanks in advance
Perhaps a compaq ipaqs may be suitable replacements, but I'm not sure they make those anymore.
I was also thinking an iPod iTouch (serious suggestion!) may be a good device to get (cheapest version £165) Its a good development environment (Objective-C, free compiler download, although you'll probably have to register with apple to get your apps. a certificate so it works on the device). This may be too expensive, and far above the requirements you're looking for.
If you're thinking about java enabled phones (I'm not sure what you're performance requirements are, but sounds quite minimal if its a port of a 10 year old app) you want to be careful, some mobile java implementations won't support floating point arithmetic directly, you may have to implement a fixed point math library. Somes phone Java VMs vary quite dramatically performance wise too, again this may not be your primary concern. The mobile phone development route may be a valid one, if you're assuming that your off-site engineers all have company phones anyway!