mouseevent

问题 I have a console application which should paint a random picture in MSPaint (mouse down -> let the cursor randomly paint something -> mouse up. This is what I have so far (I added comments to the Main method for better understanding what I want to achieve): [DllImport("user32.dll", CallingConvention = CallingConvention.StdCall)] public static extern void mouse_event(long dwFlags, uint dx, uint dy, long cButtons, long dwExtraInfo); private const int MOUSEEVENTF_LEFTDOWN = 0x201; private const

问题 I have a quick script that has a trail follow the cursor: jQuery(document).ready(function(){ $(document).mousemove(function(e){ $('.fall').each(function(){ if ($(this).css("opacity") == 0){ $(this).remove(); }; }); t = (e.pageY - 10).toString() + 'px'; l = (e.pageX - 10).toString() + 'px'; $('.fall').css("margin_left",l); $('.fall').css("margin_top",t); var doit = '<div class="fall" style="position:fixed;margin-left:' + l + ';margin-top:' + t + ';">+</div>' $('body').prepend(doit); $('

问题 I was using the Mouse_Event Function in Delphi 2009, but the Delphi documentation says this function has been superceded and to use SendInput instead. The Delphi SendInput documentation defines the syntax and parameters, but there are no examples and it is not clear how to use the function. I've looked around on the web, and can't find any good Delphi examples. Specifically, I am trying to simulate the left mouse down and then up. Currently I do this with Mouse_Event as follows: Mouse_Event

问题 For the last two days, I've been searching for a way to pass mouse events to the widgets behind a widget used as a container/parent for it's children. I know there is a way to make a widget transparent for mouse events like this: QWidget w; w.setAttribute( Qt::WA_TransparentForMouseEvents ); But this also disables the delivery of mouse events to its children! I want the children of the front widget and the widgets behind the front widget to receive the mouse events. Qt::WA

问题 I am trying to accomplish a rudimentary drag. On mousedown the item starts dragging, but not at the same speed as the mouse, so i continue dragging when the mouse is outside the window, but if the mouse is not over the page i can't get mouseup events. I can see other pages do this so i know it is possible. Appreciate any help. Edit: eg Play any video on Vimeo http://vimeo.com/19831216 make sure the window is small enough on your screen with space above it, then drag the video's progress bar

问题 I am creating a TextBox and a Button dynamically using the following code: Button btnClickMe = new Button(); btnClickMe.Content = "Click Me"; btnClickMe.Name = "btnClickMe"; btnClickMe.Click += new RoutedEventHandler(this.CallMeClick); someStackPanel.Childern.Add(btnClickMe); TextBox txtNumber = new TextBox(); txtNumber.Name = "txtNumber"; txtNumber.Text = "1776"; someStackPanel.Childern.Add(txtNumber); I hook up to a click event to the Click Me button. The click me button even is fired

问题 XAML <TreeView Name="GroupView" ItemsSource="{Binding Documents}"> <TreeView.ItemContainerStyle> <Style TargetType="{x:Type TreeViewItem}"> <EventSetter Event="MouseDoubleClick" Handler="OnTreeNodeDoubleClick"/> </Style> </TreeView.ItemContainerStyle> .... </TreeView> Code-Behind private void OnTreeNodeDoubleClick(object sender, MouseButtonEventArgs mouseEvtArgs) { Console.WriteLine("{3} MouseDoubleClick Clicks={0} ChangedButton={1} Source={2} Handled={4} ButtonState={5}", mouseEvtArgs

问题 The following code works fine the only problem is that the click event get queued like for example the setTimeout gets called for each click and the popup appears multiple times. How to make the popup appear only when user clicks and to ensure that gap between each popup is lets say 4 seconds var showpopup = 1; var check = true; var seconds = 4000; // change the frequency here current frequency = 2 seconds var url = "https://www.fb.com"; // change the url here var strWindowFeatures = "toolbar

问题 The program is an animation that creates a car and/or truck icon on the screen. The way I have it now it isn't working correctly. Specifically, the program is not clicking and dragging right. If one object is not-selected, once clicked on, it will become bolder to show that it is selected. From there we want to be able to drag it and the program will redraw the image wherever the mouse goes. If the image is un-selected, when I click and drag it, it works fine. The problem I am having is if

问题 How can I respond to a middle mouse click in C++/OpenGL? I know it may have to do with the WM_MBUTTONDOWN event however I am completely clueless with using it. I am also unfamiliar with callback functions so if it has to be used, can it be thoroughly explained? Can anyone show me how to implement the code for middle mouse click event? 回答1: You can try and implement the oldschool version with the WM_ commands, but I think it'll be a lot easier to use GLUT (since it really makes life with