detection

How to detect if the mouse is inside the whole form and child controls?

You can hook the main message loop and preprocess/postprocess any (WM_MOUSEMOVE) message what you want. public class Form1 : Form { private MouseMoveMessageFilter mouseMessageFilter; protected override void OnLoad(EventArgs e) { base.OnLoad( e ); this.mouseMessageFilter = new MouseMoveMessageFilter(); this.mouseMessageFilter.TargetForm = this; Application.AddMessageFilter(this.mouseMessageFilter); } protected override void OnClosed(EventArgs e) { base.OnClosed(e); Application.RemoveMessageFilter(this.mouseMessageFilter); } private class MouseMoveMessageFilter : … Read more

How to detect current JSF-Version?

Programmatically, you mean? You can get it from Package#getImplementationVersion(). String version = FacesContext.class.getPackage().getImplementationVersion(); There are by the way also getImplementationVendor() and getImplementationTitle() methods. You might want to use it as well in order to distinguish the vendor (MyFaces or Mojarra, for example). Or do you mean manually? Just look in /META-INF/MANIFEST.MF file of the JSF … Read more

NLTK and language detection

Have you come across the following code snippet? english_vocab = set(w.lower() for w in nltk.corpus.words.words()) text_vocab = set(w.lower() for w in text if w.lower().isalpha()) unusual = text_vocab.difference(english_vocab) from http://groups.google.com/group/nltk-users/browse_thread/thread/a5f52af2cbc4cfeb?pli=1&safe=active Or the following demo file? https://web.archive.org/web/20120202055535/http://code.google.com/p/nltk/source/browse/trunk/nltk_contrib/nltk_contrib/misc/langid.py

Use jQuery to detect whether a device can make telephone calls (supports “tel://” protocol)

I’m not sure about Android or BlackBerry, but iOS will automatically pick up telephone numbers and wrap them like so: <a href=”https://stackoverflow.com/questions/17345177/tel:xxx”>xxx</a>…so you could have a hidden <div> somewhere that contains a phone number like 1-800-555-5555, then, on page load do something like this: var isTelephone = $(“a[href*=’tel:’]”).length > 0; This may or may not … Read more

Python – can I detect unicode string language code?

If you need to detect language in response to a user action then you could use google ajax language API: #!/usr/bin/env python import json import urllib, urllib2 def detect_language(text, userip=None, referrer=”http://stackoverflow.com/q/4545977/4279″, api_key=None): query = {‘q’: text.encode(‘utf-8’) if isinstance(text, unicode) else text} if userip: query.update(userip=userip) if api_key: query.update(key=api_key) url=”https://ajax.googleapis.com/ajax/services/language/detect?v=1.0&%s”%( urllib.urlencode(query)) request = urllib2.Request(url, None, headers=dict(Referer=referrer)) d … Read more

How can I detect if Flash is installed and if not, display a hidden div that informs the user?

If swfobject won’t suffice, or you need to create something a little more bespoke, try this: var hasFlash = false; try { hasFlash = Boolean(new ActiveXObject(‘ShockwaveFlash.ShockwaveFlash’)); } catch(exception) { hasFlash = (‘undefined’ != typeof navigator.mimeTypes[‘application/x-shockwave-flash’]); } It works with 7 and 8.