cursor

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am developing Mac desktop application, where i am capturing the screen using CGImageRef screenShot = CGWindowListCreateImage(CGRectInfinite, kCGWindowListOptionAll, kCGNullWindowID, kCGWindowImageDefault); and display the screen shot, The problem is, i am expecting it should show the mouse cursor too, but its not showing, do i need to enable any settings for that ? I tried following before calling this function CGDisplayShowCursor(kCGDirectMainDisplay); CGAssociateMouseAndMouseCursorPosition(true); but it didn't work, When i checked using

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: In Oracle, it's possible to return a cursor inside a SQL query, using the cursor keyword, like this: select owner, table_name, cursor (select column_name from all_tab_columns where owner = allt.owner and table_name = allt.table_name) as columns from all_tables allt The questions are: Does anyone know where can I find documentation for this? Does PortgreSQL (or any other open source DBMS) have a similar feature? 回答1: It's called a CURSOR EXPRESSION, and it is documented in the obvious place, the Oracle SQL Reference. Find it here . As for

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: In logcat I found these messages, my application runs correctly (No error/ No exception/ and correct result), but why these messages appears in log cat. I closed all cursors. And one more thing, Application goes a little bit slow to displaying activity( Which activity is listed in my logcat message), I think it takes that time to generate these log messages. What is solution for this. I/ActivityManager( 63): Starting activity: Intent { cmp=com.pankaj.myapp/.SelectedContactActivity (has extras) } D/dalvikvm( 251): GC freed 2584 objects /

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm writing a function that edits a certain environment in LaTeX. The environment basically looks like this: \begin { quicktikz } ... some stuff ... \end { quicktikz } or like this: \begin *{ quicktikz } ... some stuff ... \end { quicktikz } I want to write a function that toggles between the two, when called from within the environment. Since my Vim knowledge ain't all that, I'm coming up with a simple solution: Get cursor position with let save_cursor=getpos(".") Backward search for \begin{quicktikz} using: ?\\begin{quicktikz}\|\

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: It is generally accepted that the use of cursors in stored procedures should be avoided where possible (replaced with set based logic etc). If you take the cases where you need to iterate over some data, and can do in a read only manner, are fast forward (read only forward) cursor more or less inefficient than say while loops? From my investigations it looks as though the cursor option is generally faster and uses less reads and cpu time. I haven't done any extensive testing, but is this what others find? Do cursors of this type (fast

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a cursor returned on an onLoadFinished callback (from LoaderManager.LoaderCallbacks ), and I want to do some (possibly costly) post-processing on this cursor. So, I'm firing off an AsyncTask that uses this Cursor. However, I'm getting intermittent crashes with this exception: android.database.StaleDataException: Attempted to access a cursor after it has been closed. My suspicion is that this is happening because the cursor (being managed by the Loader in the UI Thread) is being closed before the background thread is finished with it,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: In my React Native app, I am trying to set the cursor position of a TextInput to a particular position (eg. to the 5th character) but am have trouble doing so as the documentation is lacking a little. I suspect it has something to do with the 'setSelection' property of TextInput but I cannot seem to find out what to do. Has anyone successfully done so? Thanks. 回答1: As @this.lau_ says there is a controller property called selection which accepts an object with keys start and end. Example: class ControlledSelectionInput extends Component {

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I've got this markup <div contentEditable="true"> Some other editable content <div class="field" contentEditable="false"> <span class="label">This is the label</span> <span class="value" contentEditable="true">This is where the caret is</span> </div> <!-- This is where I want the Caret --> </div> The caret is currently in the .field span. I need to move it back out after the .field in the parent contentEditable . How can this be accomplished via javascript (with the use of jQuery if needed) ? It will be trying to trigger it on a keydown

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a database table with 3 columns: id, name, permission. It looks like this: 1 Comics fun 2 Communication talk 3 Comics watch I am trying to get the permission where the name is comics. I am using the following code in my database class(AppData.java): private final static String DB_NAME = "safety_app_database"; // the name of our database private final static int DB_VERSION = 1; // the version of the database // the names for our database columns private final String TABLE_NAME = "permissions_table"; private final String ID = "id";