mouse

I need to detect when the mouse or keyboard activity is present. My application runs in the background (tray) and I need to detect this activity even when my app isn't in focus. I don't need to know what keys were pressed, but simply WHEN they are pressed. Can I do this with just Java? I have read some solutions using JNI and C++/C but they seem to be OS specific. Is there an easy solution to this that will work with Windows, Linux, and Mac? Thanks! Since JNI is required, which relys on the OS specific APIs, the only way would be to have an implementation for each supported OS and load it

I have this row of thumbnails that I am animating with jQuery. Each of these thumbnails has a hover and active class. They work fine but when I animate the list, the new thumbnail under the mousecursor does not apply the hover? I have to move the mouse a little bit after each click? It's kinda difficult to exaplain.. I have made a fiddle here: http://jsfiddle.net/nZGYA/ When you start clicking after thumb 3 without moving the mouse you see what I mean... It works fine in FireFox, NOT Safari, Chrome, IE etc. Is there something I can do about this? For reference here is my code: <style type=

I am tracking mouse movements using the following JavaScript: var mouseX = 0; var mouseY = 0; document.onmousemove = function (e) { mouseX = e.clientX; mouseY = e.clientY; } My problem is that if the mouse hasn't been moved since the page had been loaded, the mouseX and mouseY values both equal 0. How can I get the mouse values when the page is loaded as well as when the mouse is moved? The browser doesn't know where the mouse is until it moves. It's more complicated than just "get me the cursor position". What if there is no mouse (tablet) or what if the mouse is not over the browser window?

I'm trying to show a zoomed in overlay on an image when mouse over and shift key pressed. The problem is that user might have pressed the shift key before even the window has focus, so KeyDown monitoring is not a solution. Is there a way to access modifier key states during mouse events? In Java for example the mouse event contains flags for modifier keys, not so in .NET. Try using the Control.ModifierKeys property: if ((Control.ModifierKeys & Keys.Shift) != Keys.None) { // do my stuff } 来源： https://stackoverflow.com/questions/515109/how-to-detect-shift-key-pressed-state-when-on-mouse-move

Im trying to create a block placement with snap to grid. Everything is working, and in my head this should update the position of the mouse relative to the window each frame right? sf::Vector2i position = sf::Mouse::getPosition(window.mywindow); //get position int xSnap = (position.x / gridWidth) * gridWidth; int ySnap = (position.y / gridHeight) * gridHeight; But i also have screen scrolling using if (player.playerSprite.getPosition().x + 16 > screenDimensions.x / 2) position.x = player.playerSprite.getPosition().x + 16; else position.x = screenDimensions.x / 2; //Y if (player.playerSprite

This will be confusing for me to explain so please bear with me. I've already implemented most type of movements and rotations in my camera class, everything is working with the keyboard, now I want to implement the mouse. I capture the mouse movement like this: #define SENSITIVITY 25.0f void main(void) { (...) glutPassiveMotionFunc(processPassiveMotion); glutWarpPointer(WINDOW_WIDTH / 2, WINDOW_HEIGHT / 2); glutSetCursor(GLUT_CURSOR_NONE); (...) } void processPassiveMotion(int x, int y) { int centerX = WINDOW_WIDTH / 2; int centerY = WINDOW_HEIGHT / 2; int deltaX = -1 * (x - centerX); int