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get mouse position in java without frames or applet

Posted on 2004-04-07
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Last Modified: 2012-08-13
hi,
just a quick question. if for example i move a mouse to a certain position using ajav.awt.Robot.
can i get the mouse position? without using frames or applets? so just the mouse coordinates of the current screen. is it possible? or must i use a frame or applet for it?
thanks
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Question by:Traltixx
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by:objects
ID: 10781065
i don't think you can (without native code).
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by:Traltixx
ID: 10781087
cant? what do you mean by native code?
are there other languages where i can emulate mouse movement (keystrokes) and get their values/position? if there are where can i find information on it?
thanks
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by:Tommy Braas
ID: 10781141
If you're controlling the position of the mouse pointer, why would you need to read it? To validate that the mouse pointer actuallyu moved?

For all types of UI events in a modern OS are basically divided up into two categories; System events and application events.

System events become application events when the system has determined which application the events belong to.

java.awt.Robot, I believe, can only be used inside a Java GUI. I guess that's the whole idea with it.
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by:objects
ID: 10781148
> what do you mean by native code?

I mean you'll need to write code specific to the OS you are running on
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by:Traltixx
ID: 10781184
moving and reading the mouse pointer are done in seperate classes. use in different times, but i need both.
anyway, the java.awt.Robot can be used outside the java GUI even into external applications. but i need to get the mouse position in those external applications.
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by:objects
ID: 10781206
Pretty sure u are going to need to write native code for whatever OS you want to support.
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by:Traltixx
ID: 10781211
ok..i still dont get what you mean by native code? some sort of assembly like code which can interact with the OS? arent there other languages i can use to acomplish this?
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objects earned 40 total points
ID: 10781238
for example for Windows you woould need to write a dll.
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by:Webstorm
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by:Tommy Braas
Tommy Braas earned 40 total points
ID: 10788835
Traltixx, native code is anything that is not interpreted, e.g. C/C++ etc. It runs unmodified on the processor, the binary executable files contain processor instructions for a specific processor (processor family). For instance, native code compiled for Mac OS X/PowerPC will not run on Windows/Pentium. Instruction sets differ between processor families and are incompatible.

Java is interpreted and requires a Java Runtime for the platform on which the code is to run. Java binary code (.class files) contain processor instructions for the Java processor, which until a few years ago was a virtual processor (it didn't exist in real life). You can now buy and equip a computer with a Java processor. There is even a Java OS.

JNI bridges the gap between Java and native code. When running the javah compiler a C file is created. It is this C file you add your own platform specific code by calling into various APIs available for that platform. In your case you need to find which APIs to interface with in order to accomplish your task.

Good Luck!
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