mouseevent

问题 I have program that moving mouse asynchronous. In my program async process can be aborted by pressing on a button. How it can be possible to catch event when user moving mouse and than abort running async process? And also when mouse moving outside of wpf control. Xaml: <Button Height="20" Width="40" Click="Button_Click" ></Button> Code: namespace WpfApplication2 { public partial class MainWindow : Window { WorkWithMouse WWM = new WorkWithMouse(); public MainWindow() { InitializeComponent();

问题 I am a new user of html5 and using canvas to draw circle for one of my application. I have drawn several arcs to form a circle. it works fine. However my problem is that i want to associate a separate mouse event for each of the arc. I goggled and found KinteticJS may be useful. I wish to know is there any other way that could be used to attached mouse event for every arc i created using the canvas. Please note i have used just one canvas there is no ghost canvas and I do not wish to use SVG.

问题 I'm drawing a line graph using Flot. It's updated in real-time and has multiple series. I want to be able to detect left and right mouse clicks on individual series in the graph. Currently, I can detect a left mouse click, but right-click just brings up my browser's right-click menu. Here's what I've got so far: function myClick(event, pos, obj) { if (!obj) { return; } alert('clicked!'); } var placeholder = $("#placeholder"); // setup plot var options = { ... grid: {clickable: true, hoverable

问题 I've got a boolean that keeps track of the state between a right-button MouseDown event on a FlowLayoutPanel and the corresponding subsequent MouseUpEvent: bool TextBoxesRespondingToMouseMoveEvents = false; ...Here's the code in the FlowLayoutPanel's MouseDown and MouseUp events, and a shared MouseHover handler that all TextBoxes on the FlowLayoutPanel share: private void flowLayoutPanelGreatGooglyMooglyMain_MouseDown(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Right) {

问题 I'm currently having an issue getting just the x position of the cursor so I can place a marker on that x and y location. I'm using QGraphicsScene and view to create this circle object at the location of the mouse when the mouse is clicked. Since the QGraphicsEllipseItem takes 4 arguments it seems I need the x and y coordinate separate not just what the position method gives you since it gives both x and y. How do I split the two coordinates up? Here's the code: import sys from PyQt4 import

问题 I think that must be only a little problem, but I can't get a clear thought on that. Someone an idea? I have some borders on a canvas (filled with images) and i want to click the border (i do this with the OnMouseLeftButtonDown) where the border gets red (so the user knows for sure which object he had clicked) and then, after 1 or 2 seconds, when the mousebutton is still pushed down, a drag'n'drop should start. At first I had the borders inside buttons, but the clickevent seems to conflict

问题 I am learning objective-C, and I need to handle a mouse down event. My header is something like: @interface TestAppDelegate : NSWindow <NSWindowDelegate> { NSWindow *window; IBOutlet NSTextField* text_box; } while the implementation file is: -(void)mouseDown:(NSEvent *)event { [text_box setFloatValue:1.0]; NSLog(@"It worked!"); } - (void)applicationDidFinishLaunching:(NSNotification *)aNotification{ [text_box setFloatValue:-1.0]; } and the interface has only an text field connected to my text

问题 In Button events MouseDoubleClick is included when normally add it to the form but when I programmatically add buttons to the form MouseDoubleClick doesn't exist in IDE suggestion events even if I write by myself the program execute without any error but it doesn't do anything on MouseDoubleClick event here is my code: Dim pb As New Button pb.Text = "Hello" pb.Size = New Size(150, 110) frmAddImage.flPanel.Controls.Add(pb) AddHandler pb.MouseDoubleClick, AddressOf pbButton_MouseDoubleClick

问题 I'm working on a game. I have pygame imported. I am using Python 3.3 and Pygame 3.3. The same error message all the time "LEFT" is not defined. I did exact copies of what were on the internet as I already did a search for the problem. Here is my code. I have tried a few different ways and neither seem to work. method 1: import pygame event = pygame.event.poll() if event.type == pygame.MOUSEBUTTONDOWN and event.button == LEFT: ....command method 2: (basically going all in) from pygame import *

问题 Hey i built custom scroll box. When i scroll up on this box scrolling element is going down and when i scroll down - scrolling element is going up ;). I whant to reverse that mechanism. how can i do it ? Below my code for mouse import flash.events.MouseEvent; function handleMouseWheel(event:MouseEvent):void { if ((event.delta > 0 && box_mc.y < 171) || (event.delta < 0 && box_mc.y > 135)) { box_mc.y = box_mc.y + (event.delta * 3); sb.thumb.y = sb.thumb.y + (event.delta * 13); trace(box_mc.y);