Programming for 42" touch screen

Hello everyone,
I am new the forum. I am programming an interactive small application in AS3 which will be deployed on a 42" touch screen. This screen will be placed vertically(portrait)  instead horizontally(landscape). I wonder if anyone here has done such a project and can help me with the screen resolution which I am uncertain of. I am programming the UI at 768(width) X (1360) height. I wonder if this resolution be appropriate for the GUI.
Thank you for your help.

You could do something as simple as this
// JButton #41 is the left Shift key
private void key41MousePressed(java.awt.event.KeyEvent evt) {
     caps = caps ? false : true;
//Which is the same as this
if(caps == true )
    caps==false;
}else {
    caps==true;
}So one click switches the shift key on and leaves it on until the next shift key press event is fired and then shift is turned off, or false.

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