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urlencode vs rawurlencode?

...php) Returns a string in which all non-alphanumeric characters except -_.~ have been replaced with a percent (%) sign followed by two hex digits. This is the encoding described in » RFC 3986 for protecting literal characters from being interpreted as special URL delimiters, and for protecting U...
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How do I use prepared statements in SQlite in Android?

... Below are some examples: Create a table String sql = "CREATE TABLE table_name (column_1 INTEGER PRIMARY KEY, column_2 TEXT)"; SQLiteStatement stmt = db.compileStatement(sql); stmt.execute(); The execute() method does not return a value so it is appropriate to use with CREATE and DROP but not in...
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How to crop an image in OpenCV using Python

...y simple. Use numpy slicing. import cv2 img = cv2.imread("lenna.png") crop_img = img[y:y+h, x:x+w] cv2.imshow("cropped", crop_img) cv2.waitKey(0) share | improve this answer | ...
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Python: Why is functools.partial necessary?

...mbda: >>> pickle.dumps(partial(int)) 'cfunctools\npartial\np0\n(c__builtin__\nint\np1\ntp2\nRp3\n(g1\n(tNNtp4\nb.' >>> pickle.dumps(lambda x: int(x)) Traceback (most recent call last): File "<ipython-input-11-e32d5a050739>", line 1, in <module> pickle.dumps(lambd...
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How do I show the value of a #define at compile-time?

... This also works great with Xcode 8, e.g. replacing ABC with __IPHONE_9_3. – funroll Oct 11 '16 at 19:50 ...
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Android - Camera preview is sideways

...Parameters(); Display display = ((WindowManager)getSystemService(WINDOW_SERVICE)).getDefaultDisplay(); if(display.getRotation() == Surface.ROTATION_0) { parameters.setPreviewSize(height, width); mCamera.setDisplayOrientation(90); } if(disp...
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How to [recursively] Zip a directory in PHP?

...ion to be loaded. function Zip($source, $destination) { if (!extension_loaded('zip') || !file_exists($source)) { return false; } $zip = new ZipArchive(); if (!$zip->open($destination, ZIPARCHIVE::CREATE)) { return false; } $source = str_replace('\\', '/'...
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What is the difference between ManualResetEvent and AutoResetEvent in .NET?

...ass ManualResetEventSample { private readonly ManualResetEvent _manualReset = new ManualResetEvent(false); public void RunAll() { new Thread(Worker1).Start(); new Thread(Worker2).Start(); new Thread(Worker3).Start(); Consol...
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Conditional compilation and framework targets

...rgetFrameworkVersion.Replace('v', '')) >= 2.0 ">$(DefineConstants)NET_20_OR_GREATER, </DefineConstants> <DefineConstants Condition=" $(TargetFrameworkVersion.Replace('v', '')) >= 3.5 ">$(DefineConstants)NET_35_OR_GREATER</DefineConstants> <DefineConstants Condition=...
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setTimeout / clearTimeout problems

...nswered Jul 31 '17 at 21:45 zero_coolzero_cool 2,64333 gold badges2727 silver badges3737 bronze badges ...