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Libevent . void Event_set (struct event ev,int fd,short events,void (*callback) (int,short,void), void* Arg) void Event_set (struct event *ev, evutil_socket_t FD, short events, Void (*callback) (evutil_socket_t, short, void *), void *arg) { int r; R = event_assign (EV, Current_base, FD, events, callback, ARG); Evutil_assert (r = = 0); } 1. Set

trigger, not afraid, we have a trick:The event object provides a property called Target, which can return the destination node of the event, we become the source of the event, that is, the target can be represented as the DOM of the current event operation, but not actually manipulating the DOM, of course, this is compatible, Standard browser with Ev.target,ie browser with Event.srcelement, at this time just get the position of the current node, do not know what node name, here we use nodename

, of course, this is compatible, Standard browser with Ev.target,ie browser with Event.srcelement, at this time just get the position of the current node, do not know what node name, here we use nodename to get exactly what tag name, this return is a uppercase, we need to turn to lowercase to do comparison (habit problem):Window.onload = function () {var Oul = document.getElementById ("Ul1");Oul.onclick = function (EV) {var

boolean ontouchevent (Motionevent event)-for incident consumption, three classes have this methodpublic boolean onintercepttouchevent (motionevent ev)-for intercepting events, only ViewGroup has this methodThe three methods are the same for use in three classes, but the detailed processing process is different. This we will explain in the next section.two. The dispatchtouchevent process of motionevent1.Activity PartFor normal understanding, it should

public boolean dispatchtouchevent (motionevent ev) View/viewgroup handles the initiator of an event distribution, View/viewgroup receives a touch event that first is tuned, and then determines whether to handle the interception or distribute the event to the child container in the method public boolean onintercepttouchevent (motionevent ev) ViewGroup dedicated, this method can reach the direction of di

This article mainly introduces touch. js drag, zoom, rotate (mouse gesture) function, the code is easy to understand, very good, has reference value, friends who need can refer to the following to achieve gesture operations: drag, zoom, and rotate. The encapsulated script method is as follows: Var cat = window. cat | {}; cat. touchjs = {left: 0, top: 0, scaleVal: 1, // scale rotateVal: 0, // rotate curStatus: 0, // record the status of the current gesture, 0: drag, 1: Zoom, 2: Rotate // initial

. * // @ Overridepublic boolean onInterceptTouchEvent (MotionEvent ev) {if (! IsIntercept (ev) {return false;} return super. onInterceptTouchEvent (ev) ;}@ Overridepublic boolean dispatchTouchEvent (MotionEvent event) {boolean dte = super. dispatchTouchEvent (event); if (MotionEvent. ACTION_UP = event. getAction ()! Dte) {// onItemClickint position = pointToPosit

is created: Mqueue = new keyq (); the thread in the parent class is called. In this thread, the local method readevent is called; Thread mthread = new thread ("inputdevicereader "){ Public void run (){ ....................... Rawinputevent EV = new rawinputevent (); While (true ){ Try { Inputdevice di; // This is a local method Readevent (EV ); ....................... } } Because we track the JN

. util. log; import android. view. motionevent; import android. view. view; import android. widget. listview; public class scrolllistviewdelete extends listview {private float mindis = 10; private float mlastmotionx; // remember the position of private float mlastmotiony on the last x touch screen; // remember the position of the last y touch screen. Private Boolean islock = false; Public scrolllistviewdelete (context, attributeset attrs) {super (context, attrs);}/*** if the onintercepttoucheven

The div layer moving with the mouse uses ieff. You can pay attention to compatibility issues. . Center_p2 { Position: absolute; Z-index: 1; Text-align: center; Display: none; Background-color: # e0e7ef; } . Center_p_tips2 { Position: relative; Color: Red; } Updating data... The Code is as follows: Function IsIE (){Var OsObject = "";If (navigator. userAgent. indexOf ("MSIE")> 0 ){Return true;}}Function mouseMove (ev ){/* The event mechanism of i

. Center_div2{Position: absolute;Z-index: 1;Text-align: center;Display: none;Background-color: # e0e7ef;} . Center_div_tips2 { Position: relative; Color: red; } Function isie (){ VaR osobject = "";If (navigator. useragent. indexof ("MSIE")> 0 ){Return true;}} Function mousemove (EV ){ /* The event mechanism of IE and FF is different */ Ev = EV | window. event

#include # Include # Include # Include # Include # Include # Include # Include # Define maxline 100 VoidSetnonblocking (INT sock){Int opts = 0;Opts = fcntl (sock, f_getfl );If (OPTs {Perror ("fcntl get failed! ");Return;}Opts = opts | o_nonblock;If (fcntl (sock, f_setfl, opts) {Perror ("fcntl set failed! ");Return;}} IntMain (){Int I, Maxi, listenfd, connfd, sockfd, epfd, NFDs;Size_t N;Char line [1024];Socklen_t clilen;Struct ep

content in richtextbox1 to the fileM_streamwriter.write (richtextbox1.text );// Close this fileM_streamwriter.flush ();M_streamwriter.close (); How to Implement print preview: Print preview is implemented through the print preview dialog box. To print and preview a text file after reading, the most important thing is to notify the print preview dialog box of the content of the file to be previewed. The following code displays the content displayed in richtextbox1 in the print preview dialog

HTML section "div1">"div2" >CSS Section Common JS notation //General Wordingfunction Drag (ID) {varobj =document.getElementById (ID); varDISX =0; varDisy =0; Obj.onmousedown=function (EV) {varEV = EV | | Window.Event; DISX= Ev.clientx-Obj.offsetleft; Disy= Ev.clienty-Obj.offsettop; Document.onmousemove=function (EV) {varEV =

componentsImport Segmentcontrol from './segmentcontrol '; import Cirenemycontrol from'./cirenemycontrol '; import Scoreboard from'./scoreboard '; import Ev from'./ev '; Const Motionsegment=React.createclass ({render () {//..... return ( Segmentcontrol Sgm_head={ This. Props.sgm_head} sgm_body={ This. Props.sgm_body} mouse={ This. State.mouse}/> This. Props.cir_enemy} t={ This.state.t}/>

How does js disable the Backspace key to bring the browser back? jsbackspace In the project, if you press the Backspace key to bring the browser back, several solutions are not ideal. Therefore, the wisdom of the masses and the wisdom of the family are summarized as follows: 1. Define the method to block Backspace in public js Function banBackSpace (e) {var ev = e | window. event; // obtain the event object var obj =

trigger, not afraid, we have a trick:The event object provides a property called Target, which can return the destination node of the event, we become the source of the event, that is, the target can be represented as the DOM of the current event operation, but not actually manipulating the DOM, of course, this is compatible, Standard browser with Ev.target,ie browser with Event.srcelement, at this time just get the position of the current node, do not know what node name, here we use nodename

action triggers a series of touch events: ACTION_DOWN->ACTION_MOVE->...->ACTION_MOVE->ACTION_UPFor this event distribution mechanism in Android, this event refers to Motionevent. The distribution of the view's events is also a distribution operation to Motionevent. You can use GETRAWX and Getrawy to get the horizontal ordinate of events relative to the upper-left corner of the screen. Gets the horizontal ordinate of the event relative to the upper-left corner of the current view through Getx ()

Yesterday to do something to touch the event conflict, before also often encounter event conflict, think to study the Android event conflict mechanism, so from yesterday to today to a full day to understand this knowledge, this only understand the Android touch and click event mechanism. Explore the following:First rewrite the three view layouts for testing:　　　　 Packagecom.example.yzj.android_8_10;ImportAndroid.content.Context;ImportAndroid.util.AttributeSet;ImportAndroid.util.Log;Importandroid.

, of course, this is compatible, Standard browser with Ev.target,ie browser with Event.srcelement, at this time just get the position of the current node, do not know what node name, here we use nodename to get exactly what tag name, this return is a uppercase, we need to turn to lowercase to do comparison (habit problem):Window.onload = function () {var Oul = document.getElementById ("Ul1");Oul.onclick = function (EV) {var