detect

问题 I have the following app that draws a rule : public class Rule extends JComponent { public static final long serialVersionUID=26362862L; // public static final int INCH=Toolkit.getDefaultToolkit().getScreenResolution(); public static final int INCH=(int)(Toolkit.getDefaultToolkit().getScreenResolution()*1.15); // Auto adjust this 1.15 ? public static final int HORIZONTAL=0; public static final int VERTICAL=1; public static final int SIZE=35; public int orientation; public boolean isMetric;

问题 I'm using this program to record a sound in python: Detect & Record Audio in Python I want to change the program to start recording when sound is detected by the sound card input. Probably should compare the input sound level in chunk, but how do this? 回答1: You could try something like this: based on this question/answer # this is the threshold that determines whether or not sound is detected THRESHOLD = 0 #open your audio stream # wait until the sound data breaks some level threshold while

问题 Possible Duplicate: Simplest way to detect a mobile device I have a site and I want to detect which browser is used and redirect them. I have a php index and the code must be in php. I\'ve found many sites but they don\'t work or they don\'t detect many mobile browsers. Do you know of any good code or tutorials that can detect many mobile browsers? 回答1: Have my user agent code: <?php /* USER-AGENTS ================================================== */ function check_user_agent ( $type = NULL

问题 I would like to detect how fast is the device on which my Android application is running? Is there any API to do it on Android? Or do I have to benchmark it by myself? If the device has slow CPU I would like to turn off some time consuming operations like animations or limit maximum number of simultaneous HTTP request. 回答1: The best way to do it in my opinion is to monitor the time it takes to do these actions. If it is taking too much time, then the system is too slow and you can disable

问题 I am using PDFBox for validating a pdf document . There are certain requirement to check following types of text present in a PDF Artificial Bold style text Artificial italic style text. Artificial outline style text I did search in PDFBOX api list but was unable to find such kind of api. Can anyone please help me out and tell how to determine different types of artificial font/text styles to be present in a PDF using PDFBOX. 回答1: The general procedure and a PDFBox issue In theory one should

问题 How to detect device model by macro? i had using something like this but the result on the simulator alway IS_IPHONE_5 #define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) #define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) #define IS_IPHONE_5 (IS_IPHONE && [[UIScreen mainScreen] bounds].size.height == 568.0) #define IS_IPHONE_6 (IS_IPHONE && [[UIScreen mainScreen] bounds].size.height == 667.0) #define IS_IPHONE_6PLUS (IS_IPHONE && [[UIScreen

问题 I\'m writing a Firefox addon that is triggered whenever a word is highlighted. However I need a script that detects when a word is highlighted, and I\'m stuck. An example would be nytimes.com (when you\'re reading an article and you highlight a word, the reference icon pops up). However the nytimes.com script is super complex. I\'m 16 and not much of a programmer, so that is definitely way out of my league. 回答1: The easiest way to do this is to detect mouseup and keyup events on the document

问题 I\'m trying to find a way to pass an object to function in and check it type in a runtime. This is a pseudo code: func(obj:any){ if(typeof obj === \"A\"){ // do something } else if(typeof obj === \"B\"{ //do something else } } a:A; b:B; func(a); But typeof is always return \"object\" and I could not find a way to get the real type of \"a\" or \"b\". The instanceof did not work either and return the same. Any idea how to do it in a TypeScript? Thank you for your help!!! 回答1: Edit : I want to

问题 I need to find the screen resolution of a users screen who visits my website? 回答1: You can't do it with pure PHP. You must do it with JavaScript. There are several articles written on how to do this. Essentially, you can set a cookie or you can even do some Ajax to send the info to a PHP script. If you use jQuery, you can do it something like this: jquery: $(function() { $.post('some_script.php', { width: screen.width, height:screen.height }, function(json) { if(json.outcome == 'success') { /

问题 I am making a stopwatch type program in python and I would like to know how to detect if a key is pressed (such as p for pause and s for stop), and I would not like it to be something like raw_input that waits for the user\'s input before continuing execution. Anyone know how to do this in a while loop? Also, I would like to make this cross-platform, but if that is not possible, then my main development target is linux 回答1: Python has a keyboard module with many features. Install it, perhaps