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  • Any tips for how to build a LED system thet will light up to music?

    - by daniels
    So basically I would like somehow that given an audio file as input (most likely mp3 or I can use some audio engine that will handle other types too) from my computer to control some LED lights so they will be something like an oscilloscope, like the one in winamp. What would I need to be able to do this? I'm interested in building thing up all by myself, coding, hardware, etc.. I'm going with C++ on Windows.

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  • c++ memcpy return value

    - by knittl
    according to http://www.cplusplus.com/reference/clibrary/cstring/memcpy/ c++'s memcpy takes three parameters: destination, source and size/bytes. it also returns a pointer. why is that so? aren't the parameters enough to input and copy data. or am i misunderstanding something? the examples don't use the return value

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  • writing code for nm-alike command [C++]

    - by Neeraj
    Hi everyone! Out of curiosity about reverse engineering, I am thinking of writing a simple program (in C++) that takes an executable as input and produces the names of all the functions that were a part of source program of that executable. Any pointers on how should I go about it? Step-by-step approach would be much appreciated!

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  • Cannot get document.getElementByID to work

    - by user1804234
    The following function doesn't work for some reason. Can someone see what the problem is? function checkMaxLen(txt, maxLen) { var actualLen = txt.value.length; var remain = maxLen - actualLen; document.getElementById('remainChar').Value = remain; } <input type="text" id="remainChar" runat="server" value="500"/> Whenever I try to run the function, I get this error: Microsoft JScript runtime error: Unable to set value of the property 'Value': object is null or undefined

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  • what math do i need to convert this number

    - by Uberfuzzy
    given an X, what math is needed to find its Y, using this table? x->y 0->1 1->0 2->6 3->5 4->4 5->3 6->2 language agnostic problem and no, i dont/cant just store the array, and do the lookup. yes, the input will always be the finite set of 0 to 6. it wont be scaling later.

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  • Dumb RichTextBox question

    - by John Williams
    I need to get a list of tags in a text, make their contents bold, and remove them. Can't figure out how to make it. E.g. with the following input: foo [b]bar[/b] The result should be: foo bar I use the following code to extract the tags: Dim matches = Regex.Matches(OriginalRich.Text, String.Format("(\[{0}\])(.*?)(\[/{0}\])", tag), RegexOptions.IgnoreCase Or RegexOptions.Compiled) Any help would be appreciated.

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  • Remove control M from a text file in C

    - by Werner
    Hi, ist is possible? What would be the easiest way? I tried to compare in the input string character to character so if(char([i]=="^M") char[i]="" but it does not work. By the way, if I were able to check it, what is the wistes substitution? to "" ? Thanks

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  • How do I get this validationTextBox to focus?

    - by Anurag Chaudhury
    After performing an ajax request if the input in the form was wrong I am trying to get this validatationTextBox to be focussed on and display an indicator message showing the problem. The code is: dijit.byId("passwordField").focusNode.focus() The form element is as mentioned a validationTextBox. The matter that is confusing me even further is that before in dojo 1.5, this piece of code was simply dijit.byId("passwordField").focus() and this worked fine. How can I fix this?

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  • What happens if I give more inputs in estimateRigidTransform or getAffineTransform?

    - by user3531608
    I am using estimateRigidTransform with about two vectors of 100 points and is working FINE. But somehow getAffineTransform doesn't work. I know that findHomography finds the best matrix using RANSAC and getPerspectiveTransform needs only 4 points. My question is what happens if I give more inputs in estimateRigidTransform or getAffineTransform? Does it take only 4 points from input matrix? Or do some kind of RANSAC?

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  • ms-access: designing a report: printing text on specific x,y coordinates

    - by every_answer_gets_a_point
    i need to design a report that will print text on specified x,y coordinates for example, i will input (50,50), (60,60), (70,70) and i will have my program print text at those specific coordinates on the report. in total there will be about 50 different coordinates. how do i achieve this? should i be using a label control or a textbox? should i be creating the controls dynamically or should i already have controls set at the specified regions?

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  • problem with f.readline()?

    - by kaushik
    I am reading one line at a time from a file, but at the end of each line it adds a '\n'. example: line is: 094 234 hii but my input is: 094 234 hii\n I want to read line by linem but I don't need to keep the newlines... My goal is to read a list from every line: I need ['094','234','hii'], not ['094','234','hii\n'] Any advice?

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  • if not (i_ReLaunch = 1 and (dt_enddate is not null)) How this epression will be evaluated in Oracle

    - by Phani Kumar PV
    if not (i_ReLaunch = 1 and (dt_enddate is not null)) How this epression will be evaluated in Oracle 10g when the input value of the i_ReLaunch = null and the value of the dt_enddate is not null it is entering the loop. according to the rules in normal c# and all it should not enter the loop as it will be as follows with the values. If( not(false and (true)) = if not( false) =if( true) which implies it should enters the loop But it is not happening Can someone let me know if i am wrong at any place

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  • How to display data in TextView

    - by ranjanarr
    I have a view in which there is a text box where user enters data, when clicks on submit, I want to store the input and display in another box. final EditText edittext = (EditText) findViewById(R.id.edittext); mText = (TextView) findViewById(R.id.timepicker_input); How can I do it, please help

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  • jQuery Validation with depends

    - by user2262459
    I would like to do validation which depends on other input value in same form. $( "#step1" ).validate({ rules: { weight: { required: true, max: $('#maxweight'), min: 1 }, ... I was reading all documentation: http://jqueryvalidation.org/, but I can not find anything about using other values from form to validate maximum value of other #id. Thank you in advance for help.

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