I am facing a problem in implementing Input method for Virtual Keyboard. Currently I am using robot class for sending input to any application from virtual keyboard. But for that I need to create mapping of key-code and unicode, which is not consistent on different keyboard layout, can I directly pass the UNICODE to any application using Input method without worry about mapping between keycode and unicode.
Any useful link or sample code will be useful.
It is a simple Java program which is always on top of any application and work as onscreen keyboard. Using a mouse while you press any button (key) of the keyboard, the corresponding character will be typed in the application running below. This is working perfectly for English Alphabets. I am facing problem while I am doing for unicode.
find the code snippet below
public static void simulateKeyEvent(char key){
try{
AWTKeyStroke awtKS = AWTKeyStroke.getAWTKeyStroke(key);
int key_code = awtKS.getKeyCode();
System.out.println("key = "+key+" keyCode = "+key_code);
robot.keyPress(key_code);
robot.keyRelease(key_code);
}catch(Exception e){
e.printStackTrace();
}
}
How I sovled it:
Is your virtual keyboard used as a device by your OS ? Or, in other words, have you tried considering it as a "real" keyboard ? According to Java hardware abstraction, were your virtual keyboard to be considered as a driver, it should simply work like a real keyboard.
EDIT : according to comment, this is not a virtual device, but a Java application, as a consequence, probleme is different.
According to Javadoc, Robot can send key strokes given as int. To create those key strokes from characters, I would recommand you create them using
getKeystroke(char)
before to transform them into integer values usinggetKeycode()
. This way, you would have integer values associatesd your unicode characters, whichever they are.EDIT 2 : once again, a modification ;-)
it seems like
getKeyStroke(String)
"should" handle unicode characters.