Monday, May 21, 2007

Inkey$ and Liberty BASIC

There has been some discussion in the support forum about extending keyboard handling in Liberty BASIC programs. Currently we only allow doing something like this in the graphics views. Two things (maybe more?) are missing:
  • Getting the next character in the mainwindow without stopping the program. Currently only INPUT and INPUT$() are supported. Both stop the program and wait.
  • Getting the next character typed for some window or widget that has focus. In other words, reading keypresses for objects with handles (ie. #thisWindow)

What I suggested in the forum is a function called inkey$().

The following would read keypresses for the mainwindow:

print inkey$()

or it could be abbreviated to:

print inkey$

To read keypresses for windows or widgets with handles:

print inkey$(#handle)

I'd like to solicit feedback here. Any ideas? Please leave a comment, and thanks!