mouseevent

问题 is there a Qt (I use Qt 4.7.1) widget that emit signals (not just one at the first time) while it is pressed and stops when the user releases the mouse? something like mousedown events in standard intervals? or do I have to implement this with a qtimer? thanks 回答1: Check out QAbstractButton::autoRepeat and autoRepeatInterval. It should be exactly what you need and is available for all buttons. 回答2: You have to implement something that fire the event until the user release the mouse. I suggest

问题 I'm doing an analysis of the presidential candidates speeches. I have a data file with the following variables: > names(cl.context) [1] "id" "category" "statement" "nchar" "polarity" The statement variable is populated by sentences that each belong to one category from three. The polarity ranges from -1 to 1, reflecting whether the sentence has a positive bias, neutral, or negative bias. What I'm trying to do in p5 is to have statements displayed by category, with random x,y placement, when

问题 I have been battling to find the error in my adaptation of the QTip2 Demo-menu for over a month now. My implementation is working great with the exception of only 2 remaining problems. Both are detailed below with a Fiddle. I really hope someone can help so that I can wrap up this project. The 2 problems: http://jsfiddle.net/UGQ95/10/ The 'Tier 1' menu opens correctly and persists correctly whenever the user is not using the menu. This means that whenever the user has completed hovering any

问题 I'm trying to get the millisecond time between times when the mouse moves. I'm using a library for the mouse move event so that it works globally. The problem is that with the code below the time is always zero. @Override public void mouseMoved(GlobalMouseEvent event) { //times the mouse has moved moveCount++; //if it's the first time moving mouse then it's the start time if (moveCount % 2 != 0) { startTime = System.currentTimeMillis(); } //if it's the second time moving the mouse then it's

问题 How to modify mouseDragged event of ChartPanel such that I want to do some processing before/after the zooming is done? I have the following chartPanel, JFreeChart chart = new JFreeChart( "Demo", JFreeChart.DEFAULT_TITLE_FONT,plot, true); ChartPanel chartPanel = new ChartPanel(chart); Whenever the mouse is dragged, I want to call my function before/ after the mouseDragged() is called. How to do this ? chartPanel.addMouseMotionListener(new MouseMotionListener() { @Override public void

问题 On our page we have some iframes in a long horizontally-scrolling <div> . If the user is using a mouse they can scroll with the scrollbars and we would like them to be able to select text within the iframes. If they are using touch only however, the scrollbars are a hassle and I would like to overlay a transparent element over the whole thing to give them the ability to scroll easily by dragging, this of course sacrifices the select-text feature but makes sense in that scenario. Which gets me

问题 It seams to be a bug, if you change a Form size to a previously transparent region, mouse events will no longer be detected on it. How to reproduce it: Create a new Windows form project Set Form1 TransparencyKey to Magenta Add a Panel to Form1 and config it as: Dock fill BackColor to Magenta Run, now try to change the Form size, if you reduce it (enough so the new border will be placed over a current transparent region), the mouse will no longer "detect" the window border on that side. If you

问题 I would like to zoom in on an object for as long as I hold the right mouse button down. The issue right now is that I have to click it every time I want to zoom. Is there a way I can modify my code so that it will zoom while I hold the button, rather than clicking it? void mouse(int button, int state, int x, int y) { // Save the left button state if (button == GLUT_LEFT_BUTTON) { leftMouseButtonDown = (state == GLUT_DOWN); zMovement += 0.1f; } else if (button == GLUT_RIGHT_BUTTON) {

问题 I am trying to move the mouse to a position(x, y), and click on it with the following code in a console c# application [DllImport("user32.dll")] static extern void mouse_event(int dwFlags, int dx, int dy, int dwData, int dwExtraInfo); private const int MOUSEEVENTF_MOVE = 0x0001; private const int MOUSEEVENTF_LEFTDOWN = 0x0002; private const int MOUSEEVENTF_LEFTUP = 0x0004; private const int MOUSEEVENTF_RIGHTDOWN = 0x0008; private const int MOUSEEVENTF_RIGHTUP = 0x0010; private const int

问题 I believe this is the realm of the ncurses library. I'm trying to avoid having to get down and dirty with it though. I'm looking for a program that I can configure to run a command while performing terminal mouse reporting translation to keypresses. This is for use with pagers like less. For example the MouseTerm SIMBL plugin for Terminal.app does exactly this. But iTerm2 does not. And I want it. I think the answer may be as simple as directly remapping the codes. It looks like there are