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Closed 11 years ago.
I've always been curious... What programming language are DOS programs written in? For example, this program: http://keyhut.com/pos.htm
You can use the arrows on the keyboard to select options, type in things, press enter to do things...
At my work, all of our backend looks like DOS, the blue screen, you use the arrows on keyboard to select options... etc.
How could I create an interactive DOS program like that?
There were many languages out there for those sort of apps.
They include QBasic, Turbo Pascal, Turbo C++.
Here is a helpful page to get started : http://www.opus.co.tt/dave/program.htm. You may also want to google to find the language you're interested in.
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Closed 9 years ago.
I have written a shell script, it takes many commands. On pressing TAB key shell should list the commands. How to make it?
Br,
Praveen P B
It depends on the shell you're targeting. For bash, you'll want to read the chapters on programmable completion in the Bash Reference Manual.
Basically, you write a script for it and have users source it somewhere (usually by placing it in /etc/bash_completion.d/ or similar; examining existing scripts there is probably a good idea, too).
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Closed 10 years ago.
can anyone tell me how can i build console based menu in which i can navigate by direction keys to select options. Code should be in bash or shell script.
Look at pdmenu. It is pretty simple to use.
Or in case you need go deeper there is whiptail tool. It also allow you to build dialog box and so on. But it is a little bit harder to use comparing to pdmenu.
What about the dialog command?
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 11 years ago.
how can i create custom interfaces in xcode 4? i've seen programs like Kaleidoscope (http://designshack.co.uk/images/designs/kaleidoscope-for-mac.jpg) using custom controls or something not available for drag and drop on xode.
any help? thanks
You'll get better help if you take the time to craft more specific questions.
Since you're speaking generally, I'll answer generally: Xcode 4 will not help you create custom interfaces (at least not beyond letting you edit the code to build them). This is done entirely in code.
Learn to draw with Cocoa then learn how controls and cells work, then ask specific questions when you don't understand.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 11 years ago.
I want to know if is there any specific algorithm that can be followed to understand the meaning of a word/sentence/paragraph. Basically, I want to write a program that will take text/paragraph as input and try to find out what its meaning is. And thereby highlight the emotions within the text.
Also, if there is an algorithm to understand things, can the same algorithm be applied to itself? It reduces the quest further to a point where we become interested in knowing meaning of meaning OR rather definition of definition.
You want Natural Language Processing and Semantic Technology. This is still a flourishing area in computer science. Look at things such as a Semantic Reasoner. You can start with Jena. There are also other things you can look at such as Academic Thesis papers.
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 12 years ago.
How to hide the text in the picture using the least significant bit ?
It looks like you're not sure what you're asking. Perhaps go and research the general idea of steganography.
Short answer: don't.
Slightly longer answer: it's a very inefficient form of steganography, it won't work for JPEG images, and for GIF/PNG it'll basically make your image uncompressable.
If you need stega for anything else but curiosity or school assignments, research existing offerings.
The technique you're thinking of is called Steganography. Here's a good post which explains the technique. http://www.dreamincode.net/forums/topic/27950-steganography/