invisible

Making my console application invisible

由 匆匆过客 提交于 2019-11-29 16:39:54
问题 I am developing a console application for my public library as a school project. The console application will run as soon as the user logs on and do some background work. The thing is, I don't want the console application to actually appear. I need it invisible. The last thing I need is complaints because some people got freaked out that a CMD window opened and closed, besides that the library wants it as invisible as possible. I tried following the code in this thread: http://social.msdn

Protractor : wait for element to become invisible/hidden

由 我只是一个虾纸丫 提交于 2019-11-29 16:28:22
问题 I saw other protractor related post mentioning about how to wait for an element to become visible. However, recently, I ran into an opposite use case. I wanted to wait for an element until it becomes invisible. Since I could not find anything specific about it. I went ahead and came up with a solution. var ptor = protractor.getInstance(); ptor.wait(function() { return element(by.css('#my-css-here')).isDisplayed().then(function(isVisible){ console.log('is visible :' + isVisible); return

Adding an invisible image watermark in C#?

由 天涯浪子 提交于 2019-11-29 14:22:42
问题 I want to insert multiple invisible watermarks into my JPEG pictures through C# code. That means that I need a .NET library that does this work and not some external batch application. Any suggestions? 回答1: there is a port of image magick library to c# , and it can easily perform that operation for you... 回答2: Storing "invisible" data in pictures is known as "steganography". A Google-search for "steganography .net" yields this article as its top hit - might prove useful. 回答3: What is the

Modifying the default hash value [duplicate]

由 无人久伴 提交于 2019-11-29 10:15:58
This question already has an answer here: Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash.new([]) 4 answers Ruby lets you define default values for hashes: h=Hash.new(['alright']) h['meh'] # => ["alright"] Assignment of a value shows up when displaying the hash, but a modified default does not. Where's 'bad' ? h['good']=['fine','dandy'] h['bad'].push('unhappy') h # => {"good"=>["fine", "dandy"]} 'bad' shows up if we explicitly ask. h['bad'] # => ["alright", "unhappy"] Why does the modified default value not show up when displaying the hash?

Oracle 11g 新特性 -- Invisible Indexes(不可见的索引) 说明

由 时光毁灭记忆、已成空白 提交于 2019-11-29 08:22:21
一．Invisible Indexes 说明 从版本11g 开始，可以创建不可见的索引。优化程序会忽略不可见的索引，除非在会话或系统级别上将 OPTIMIZER_USE_INVISIBLE_INDEXES 初始化参数显式设置为TRUE。 此参数的默认值是FALSE 。 使索引不可见是使索引不可用或删除索引的一种替代办法。使用不可见的索引，可完成以下操作： (1) 在删除索引之前测试对索引的删除。 (2) 对应用程序的特定操作或模块使用临时索引结构，这样就不会影响整个应用程序。 注意： 与不可用的索引不同，不可见的索引在使用DML 语句期间仍会得到维护。 当索引不可见时，优化程序生成的计划不会使用该索引。 如果未发现性能下降，则可以删除该索引。还可以创建最初不可见的索引，执行测试，然后确定是否使该索引可见。 可以查询*_INDEXES 数据字典视图的VISIBILITY 列来确定该索引是VISIBLE 还是INVISIBLE。 SQL> select visibility from dba_indexes where index_name='IDX_ID'; VISIBILIT --------- VISIBLE -- 创建不可见索引： CREATE INDEX index_name ONtable_name(column_name) INVISIBLE; -- 修改索引是否可见：

Oracle 11g 新特性 -- Invisible Indexes(不可见的索引) 说明

由 ℡╲_俬逩灬. 提交于 2019-11-29 08:21:54
一．Invisible Indexes 说明 从版本11g 开始，可以创建不可见的索引。优化程序会忽略不可见的索引，除非在会话或系统级别上将 OPTIMIZER_USE_INVISIBLE_INDEXES 初始化参数显式设置为TRUE。 此参数的默认值是FALSE 。 使索引不可见是使索引不可用或删除索引的一种替代办法。使用不可见的索引，可完成以下操作： (1) 在删除索引之前测试对索引的删除。 (2) 对应用程序的特定操作或模块使用临时索引结构，这样就不会影响整个应用程序。 注意： 与不可用的索引不同，不可见的索引在使用DML 语句期间仍会得到维护。 当索引不可见时，优化程序生成的计划不会使用该索引。 如果未发现性能下降，则可以删除该索引。还可以创建最初不可见的索引，执行测试，然后确定是否使该索引可见。 可以查询*_INDEXES 数据字典视图的VISIBILITY 列来确定该索引是VISIBLE 还是INVISIBLE。 SQL> select visibility from dba_indexes where index_name='IDX_ID'; VISIBILIT --------- VISIBLE -- 创建不可见索引： CREATE INDEX index_name ONtable_name(column_name) INVISIBLE; -- 修改索引是否可见：

Console window still popping up even after ProcessWindowStyle.Hidden;

由 爷，独闯天下 提交于 2019-11-28 08:01:31
问题 I have to run a console application from my Windows Application. The console application I want to run is an Embedded Resource in my application, and I am calling it like this: // Run the updater and grab its output Process Updater = new Process(); Updater.StartInfo.FileName = "C:\\tmp\\tmp.exe"; Updater.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; Updater.StartInfo.UseShellExecute = false; Updater.StartInfo.RedirectStandardOutput = true; Updater.Start(); string UpdaterOutput = Updater

Missing buttons on AlertDialog | Android 7.0 (Nexus 5x)

由 泄露秘密 提交于 2019-11-27 21:02:29
I am trying to create an AlertDialog but the buttons are not showing. Only seeing this issue in Android 7.0: final AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle("This app needs location access"); builder.setMessage("Please grant location access so this app can detect beacons."); builder.setPositiveButton(android.R.string.ok, null); builder.setOnDismissListener(new DialogInterface.OnDismissListener() { @Override @TargetApi(Build.VERSION_CODES.M) public void onDismiss(final DialogInterface dialog) { requestPermissions(new String[]{Manifest.permission.ACCESS_COARSE

Contact API storing contact as an invisible contact: How to make it visible?

由 旧城冷巷雨未停 提交于 2019-11-27 14:06:09
问题 I am trying to add a contact in Android using getContentResolver . First I created an ArrayList : ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>(); then populated the array list by int rawContactInsertIndex = ops.size(); ops.add(ContentProviderOperation.newInsert(RawContacts.CONTENT_URI) .withValue(ContactsContract.RawContacts.ACCOUNT_NAME,accountName) .build()); ops.add(ContentProviderOperation.newInsert(ContactsContract.Data.CONTENT_URI)

How to make a columns in JTable Invisible for Swing Java

由 不问归期 提交于 2019-11-27 13:27:37
I have designed one GUI in which I have used one JTable from which I have to make 2 columns invisible . How should I do that ? Remove the TableColumn from the TableColumnModel . TableColumnModel tcm = table.getColumnModel(); tcm.removeColumn( tcm.getColumn(...) ); If you need access to the data then you use table.getModel().getValueAt(...) . For a more complex solution that allows the user to hide/show columns as they wish check out the Table Column Manager . First remove the column from the view table.removeColumn(table.getColumnModel().getColumn(4)); Then retrieve the data from the model.
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