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Java Forum / General / January 2007determine the mouse cursor position without mouse event
is there a way to determine the mouse cursor position apart from intercepting a mouse event such as drag, i.e., sometimes i want the cursor position even if no mouse event has taken place tom arnall north spit, ca usa Loosen up: the tests extend the compiler.  SignaturePosted via a free Usenet account from http://www.teranews.com > is there a way to determine the mouse cursor position apart from > intercepting a mouse event such as drag, i.e., sometimes i want the cursor > position even if no mouse event has taken place What about trapping "mouse move" events? Every time the mouse moves to a position inside your component it should generate one. If a mouse_pos value pair is updated by a listener for such an event, it should always hold the last position the mouse has had inside your component. If you want the pos when it's outside the component, that may not be possible. To know when it's left the component, just look for the pos to get near the edge of the component and then not change for a while. >> is there a way to determine the mouse cursor position apart from >> intercepting a mouse event such as drag, i.e., sometimes I want the [quoted text clipped - 7 lines] > To know when it's left the component, just look for the pos to get near > the edge of the component and then not change for a while. That's the approach I use now: create a mouse move listener and update the x,y values there for when I need them. But I seems to me that's a lot of burden on the system, and I'm hoping that java gives more direct access to the info. It seems to me that java tracks the info anyway, in order to make the mousemove listener possible, so why not provide access to the info without requiring a subroutine call e'time the cursor moves a pixel. tom arnall north spit, ca usa SignaturePosted via a free Usenet account from http://www.teranews.com > is there a way to determine the mouse cursor position ... 1.5+ <http://java.sun.com/j2se/1.5.0/docs/api/java/awt/MouseInfo.html#getPointerInfo()> <http://java.sun.com/j2se/1.5.0/docs/api/java/awt/PointerInfo.html#getLocation()> Andrew T. >> is there a way to determine the mouse cursor position ... > > 1.5+ <http://java.sun.com/j2se/1.5.0/docs/api/java/awt/MouseInfo.html#getPointerInfo()> <http://java.sun.com/j2se/1.5.0/docs/api/java/awt/PointerInfo.html#getLocation()> one man's stupid question, another man's prize. thanks very much. SignaturePosted via a free Usenet account from http://www.teranews.com >> is there a way to determine the mouse cursor position ... > > 1.5+ <http://java.sun.com/j2se/1.5.0/docs/api/java/awt/MouseInfo.html#getPointerInfo()> <http://java.sun.com/j2se/1.5.0/docs/api/java/awt/PointerInfo.html#getLocation()> > Andrew T. I find with MouseInfo etc that it gives the absolute position of the mouse cursor. For the position relative to the component on which the cursor is located, there is Component.getMousePosition() covered at: http://java.sun.com/j2se/1.5.0/docs/api/java/awt/Component.html#getMousePosition() Thanks for guiding me in the right direction. tom arnall north spit, ca usa SignaturePosted via a free Usenet account from http://www.teranews.com tom arnall <kloro2006@gmail.com> wrote in news:4586dd40$0$15523$88260bb3 @free.teranews.com: > is there a way to determine the mouse cursor position apart from > intercepting a mouse event such as drag, i.e., sometimes i want the cursor > position even if no mouse event has taken place <snip> I believe that MouseInfo.getPointerInfo() (in java.awt) will do what you asked for, but I think that adding a MouseMotionListener (in java.awt.event) and using it to keep track is often a better way. SignatureIan Shef 805/F6 * These are my personal opinions Raytheon Company * and not those of my employer. PO Box 11337 * Tucson, AZ 85734-1337 * Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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