Key disableing from our Application

[Viswanatha GB]

Hi All,
I have a application which is developed usng JEC Swing There is a Frame which is opened with Login Oprion.
i want to disable all the Keys other then some Char & Numaric) when this frame is opened.
Example:
When i boot the system i will open My Applcation after that user should able to open any applications fromn Desktop..like if he press start menu key,F1...F2...some thing like this.
can i do this ? pls let me know how can i achive this through Event OR some other way..
Thanks in Advace
Viswa
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[Nathan Pruett]

First, viswagb, please re-register with a username following the JavaRanch UserName Guidelines. Your username has to be in the format "First Name" + space + "Last Name".

It sounds like you want to disable all keys when your login screen comes up, not allowing the user to use alt-tab to switch to another program, or Ctrl-C to kill it, or windows key to bring up menu. This isn't possible because Windows catches system keypresses like Ctrl-C, Alt-Tab, and windows key first and deals with them. There is no way a pure Java program can interrupt the OS from getting these key presses. (There may be able to be some way to use JNI to do this, but I don't know how to do it...)

-Nate