offscreen dispatch

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WIN2D official article series translation-Behind the scenes

This article is a personal blog backup article, the original address:http://validvoid.net/win2d-offscreen-drawing/Apps sometimes need to draw graphics to targets that aren't immediately visible. This type of drawing action is called "draw behind" or "draw to texture." This is often required when an application needs to save the drawing operation output to a file, return an array of pixels, or leave the input source for subsequent operations.The above

iOS Development: Performance optimization for Mkmapview

on Because of the mkmapview reason here we are mainly concerned with these several options Color Blended Layers Color misaligned Images Color offscreen-rendered Yellow Opening these options separately results in the following Can see Color blended layers no problem, but it's normal. Because of the use of mask no transparent place Color misaligned images except the default avatar this is because the size of the picture

008 Virtual Machine byte-code execution engine

converted to direct references, The premise of this resolution is that the method has a deterministic version of the call before the program actually runs, and that the invocation version of the method is immutable at run time. In other words, the invocation target must be determined when the program code is written and the compiler compiles. The invocation of such a method is called parsing (Resolution). In the Java virtual machine there are 5 methods called bytecode instructions, respectively

Use of GCD

Dispatch QueueThe Dispatch queue is the one of the most basic elements in GCD that is used to perform tasks.The Dispatch queue is divided into two types:Serial Dispatch queue, in order to add to queue (FIFO) one after another executionConcurrent Dispatch queue, concurrent ex

iOS Learning GCD

processing methods placed in other threads, let other threads processing, the main thread does not process . in the GCD Previous multithreading methods : Nsthread, Nsoperationqueue, nsinvocationoperationGcd:grand Central Dispatch: Techniques for performing tasks asynchronously.When you do not use GCD, when the app is left on the home button, the app only has a maximum of 5 seconds to do some saving or cleanup work. But after using GCD, the app has a

Shallow into react-native using Redux_redux

, there are three folders, is the above three things ... Store left in the last to say because this is the other two connected objects. The flow of these three things is like this, 1.Store Needless to say, it's all about copying a code. Then tie the store to the properties of the root page. 2.Reducer, build an indexed file as a binding reducer (also a copy of Kung Fu), and then you can write multiple reducer. Reducer is the action that is distributed through the action, and the logical code th

Use Jacob to operate Word documents

Remember to use activexcomponent to call the quit method of Word1. Create a blank word document, add the content, and save it. Public class newaword{Public newaword (){// Initialize the com thread, which is very important !! Call the release method after use.Comthread. initsta ();// Initialize the word application, create a blank document, and obtain the document content objectActivexcomponent objword = new activexcomponent ("word. application ");Dispatch

GCD demo example

1. GCD. h # Import @ Interface viewcontroller: uiviewcontroller @ Property (retain, nonatomic) iboutlet uilabel * outletlabel1;@ Property (retain, nonatomic) iboutlet uilabel * outletlabel2;@ Property (retain, nonatomic) iboutlet uilabel * outletlabel3;@ Property (retain, nonatomic) iboutlet uilabel * outletlabel4; -(Ibaction) btnclick4 :( uibutton *) sender;-(Ibaction) btnclick2 :( uibutton *) sender;-(Ibaction) btnclick3 :( uibutton *) sender;-(Ibaction) btnclick :( uibutton *) sender; @ End

Use Jacob open-source plug-in to operate Microsoft Word

"); Oword. setproperty ("Visible",NewVariant (tvisible )); Object odocuments = oword. getproperty ("Documents"). Todispatch (); Object odocument = Dispatch. Call (odocuments ,"Open", Sinputdoc). todispatch (); Object oselection = oword. getproperty ("Selection"). Todispatch (); Object ofind = oword. Call (oselection ,"Find"). Todispatch (); Run this. It shoshould open Word, but dont do something cool. Execute the aboveCodeWill open a word

"Reprint" to complete what C + + cannot do-visitor mode

Original:Do what C + + can't do-visitor modeWith the freshly ground hot coffee, I sat in front of the monitor. "The good Day has begun again," I thought.A very difficult task was done last night and sent to the American colleague review, so today we just need to modify the code and submit it according to their comments, and a week's mission is complete. For the remaining two or three days, I can have some spare time to look at other materials to continue to enrich myself.With review Board Open,

Laravel Redis multiple processes simultaneously fetching queue issues

0:00 php/var/www/xxx.cn/artisan queue:work--queue=sendfile--tries=3--daemon 8 root 0:00 php/v Ar/www/xxx.cn/artisan queue:work--queue=sendfile--tries=3--daemon 9 root 0:00 Php/var/www/xxx.cn/artisan queue: Work--queue=sendfile--tries=3--daemon root 0:00 php/var/www/xxx.cn/artisan queue:work--queue=sendfile-- tries=3--daemon root 0:00 php/var/www/xxx.cn/artisan queue:work --queue=sendfile--tries=3--daemon 0:00 Php/var/www/xxx.cn/artisan queue:work--queue=sendfile--tries=3--daemon root 0:0

Method Analysis for fixing weblogic JAVA deserialization Vulnerability

serialization data. The second method is used to generate JAVA serialized data. The data format is as follows. When the JAVA serialization data generated in the first method is sent to weblogic, weblogic throws the following exception. Java. io. EOFException At weblogic. utils. io. DataIO. readUnsignedByte (DataIO. java: 435) At weblogic. utils. io. DataIO. readLength (DataIO. java: 828) At weblogic. utils. io. ChunkedDataInputStream. readLength (ChunkedDataInputStream. java: 150) At weblogic.

Java Flexible Control Word__java

Java control of Office controls is a cumbersome thing. Things have become much simpler since Jacob. But it's still a hassle to implement Java's flexible control of word. Here are some common word objects as well as some typical processing processes that I hope will help you. (Please note: JDK1.3.2 running Jacob is more normal, JDK1.4 has problems) /** Word Object */ Private activexcomponent word = null; /** Document Object * * Private Dispatch docume

JVM Learning: Talking about method invocation and the principle of override/overload

("Invokeinterface is exEcute "); } interface iexecutor{public void Invokeinterface ();} Decompile related instruction fragment: corresponding to the method call order in main Assign: As we all know, object-oriented three features are: "Inheritance, encapsulation, polymorphism", where polymorphism also includes overrides and overloads, the allocation mentioned in this section is the underlying implementation base of overlay and overload. So let's see what the assignment is? The concept of

PKU SQL Database Video Course notes

before T1 started, or started after T1 was completedIsolation is achieved through concurrency control mechanisms* Persistence (Durability)Once a transaction is committed, its impact on the database must be permanentSystem failure cannot change the persistence of a transactionPersistence is achieved through a recovery mechanismShow transactions-starting with BEGIN transaction, ending with commit or rollbackImplied transaction-transaction starts automatically until a commit or rollback is encount

[Redux] Generating Containers with Connect () from React Redux (Addtodo)

Code to be refacted:Const ADDTODO = (props, {store}) = = {let input ; return ( { = node; /> { store.dispatch ({ ' Add_todo ', ID: Nexttodoid+ +, text:input.value } )= '; }} > Add Todo = { Store: React.PropTypes.object};Instead of passing:Const ADDTODO = (props, {store}) = = {We can only pass ' props ', and we get ' dispatch ' from the props:Let Addtodo = ({

[Li Jingshan php] every day tp5-20161212| App.php-2

[' Default_filter ']);// specify filter parameters NULL direct return try{// Open Multi-lingual mechanism if ($config [' lang_switch_on ']) { // get current language $request Langset (Lang::d etect ());// Load System Language Pack lang::load (THINK_PATH. ' lang ' .DS. $request->langset () .ext);// loading system configured language packs if (! $config [' App_multi_module ']) {// If there is no multi-module configuration lang::load (app_path. ' Lang ' .DS. $request->langset () .ext)

Jacob operates Word and Excel

"; Boolean flag = false; Dispatch XLO = App.getobject (); String oldtext= "1234"; String newtext= "Test"; Boolean visible=false; String bookmarkkey= "Lb_kjgg"; try {//Set Word not visible app.setproperty ("Visible", New Variant (Visible)),//log.info ("Set Word not visible success!"); System.out.println ("Set Word not visible success!"); Dispatch docs = app.getproperty ("Documents"). Todispatch ();

Redux Source Analysis Series (iv): ' Applymiddleware '

)); Or CreateStore (Reducer,applymiddleware (Thunkmiddleware)); After familiarity with usage, let's take a look at how Applymiddleware is implemented: Export default function Applymiddleware (... middlewares) {return (CreateStore) => (reducer, preloadedstate, enhancer) => {//Generate a store const store = createstore (reducer, preloadedstate, enhancer) Let dispatch = Store.dispa tch Let chain = []//rough version of the store, which contains t

First entry React-redux

function ince () {return (dispatch,getstate) = Gt {//const {counter}=getstate () Dispatch (increment ());}} Export function dece () {return (dispatch,getstate) ={//const {counter}=getstate () Dispatch ( Decrement ())}} For the sake of simplicity, I changed the action of the official website example and left

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