user198729 - Page 8 - Developer IT

About gcc -mwindows

- by user198729

What does -mwindows mean and how does it work exactly? Does it internally change the main function to WinMain ?

How do I use some specific dll in c/c++?

- by user198729

Like the msvcr70/msvcr80/msvcr90.dll, what's the code like to instruct the linker to link to one of them dynamically? Or has that anything to do with c/c++,but cmake?

Need help understanding a bash command

- by user198729

It's actually a combination of php and bash: exec(sprintf("%s > %s 2>&1 & echo $! >> %s", $cmd, $outputfile, $pidfile)); I don't understand what 2>&1 & echo $! is there for?

What's the best resource for learning windows driver development?

- by user198729

For linux driver development, I can refer to <linux driver development> What about windows driver development? UPDATE Is there any goold books on this topic?

How does SO's form remember previous input values?

I've noticed that the Title or Body part is remembered if I come back to the Ask Question page by pressing Back button of my browser. This feature is available in all browsers I tested, but doesn't exist for the forms in my own projects. How can I approach that effect? UPDATE I still don't have any clue yet,but guess it that some kind of client cache enabled by http headers or javascript?

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Is it possible to run asp on linux with Apache?

- by user198729

The production environment is now LAMP, I don't know whether it's possible to serve asp requests on it.

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How's Comet implemented?

- by user198729

I wander how do client side get response if the connection of request is not finished yet? What's the principle? In fact I've read quite a few posts on this subject: http://stackoverflow.com/questions/333664/simple-long-polling-example-code http://stackoverflow.com/questions/932415/how-does-the-live-real-time-typing-work-in-google-wave But none of them solve my doubt

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Is it possible to get id of affected rows in MySQL?

- by user198729

I'm using pdo to do this : update tags set cnt=cnt-1 where name in ? delete from news_tag where news_id=? and tag_id in (select id from tags where name in ?) But if I can get affected rows' id,the subquery is not needed.

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What does the two parameters mean for WScript here?

- by user198729

$WshShell = new COM("WScript.Shell"); $oExec = $WshShell->Run($cmd, 0, false); I don't seem to find the document for this...

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Why closed contours are guaranteed here?

- by user198729

Quoted from here: BW = edge(I,'zerocross',thresh,h) specifies the zero-cross method, using the filter h. thresh is the sensitivity threshold; if the argument is empty ([]), edge chooses the sensitivity threshold automatically. If you specify a threshold of 0, the output image has closed contours, because it includes all the zero crossings in the input image. I don't understand it,can someone elaborate?

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How to find the shortest path between two blobs(contours/closed curves) using MATLAB?

- by user198729

bwlabel can be used to get disconnected objects in an image: [L Ne] = bwlabel(image); How to calculate the shortest path between two disconnected closed curves? Is there a practical(not theoretical) solution?

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How to reverse the color of a bwImage in matlab?

- by user198729

I want to convert between the following two images:

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Any advice how to implement a character recognizing functionality?

- by user198729

Let the user write/draw a character on the canvas,and recognize it. Seems not so easy,is there an open source project for this?

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Which directories does include statement search in C/C++?

- by user198729

test.c: include "file.h"; In the above statement, which directories will be searched ? I suppose the directory where test.c locates will be searched, right? But is that all? BTW, what's the benifit to use a header file? Java doesn't require a header file...

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Where can I get zend_debugger.dll for various versions of PHP(windows)?

- by user198729

I'm having a hard time installing zend_debugger, somehow the installed version doesn't match with my php. Is there a repository for all versions of zend_debugger?

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Is there any difference between DIR and dirname(FILE) in PHP?

- by user198729

It looks the same for me,but I'm not sure, because there are many projects that uses dirname(__FILE__).

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How to make form remember previous values like SO?

- by user198729

I've noticed that the Title or Body part is remembered if I come back to the Ask Question page by pressing Back button of my browser. How can I approach that effect?

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How do I turn off such PHP Notices ?

- by user198729

Notice: Constant DIR_FS_CATALOG already defined I've already commented out display_errors in php.ini,but is not working. How do I make PHP not output such things to browsers?

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How do I convert output of number_format back to numbers in PHP?

- by user198729

PHP can't recognize 1,200.00(generated by number_format) but only 1200.00, What's the general solution for this problem?

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How to develop a MVC framework from scratch?

- by user198729

View is easy to be separated from MC, but how to separate M and C?The difference seems a little vague to me. I'm using PHP.

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How do I calculate the area under a curve in an image with MATLAB?

- by user198729

The unit of x-axis is hours (h), and there are 24 hours in total. The unit of y-axis is millions (m). How do I calculate the area under the red curve in the image in units of m*h? Important UPDATE Only the image is readily available (not the data), and I want to calculate the area programmatically.

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What's the best building tool for java besides ant?

- by user198729

Somehow I don't like IDE very much, but I don't find a particular good tool to build java applications from source yet. I welcome all kinds of feedbacks!