WideStudio Programming Guide	WideStudio Index Table of contents

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How to select the key events on the input field

You can select or reject/convert the key events on the input field with the event procedure by the WSEV_KEY_HOOK trigger.

# A WSEV_KEY_HOOK sample procedure.
# Set the input field with the WSEV_KEY_HOOK trigger.
...

def hookop(object):
  # get the pressed key code.
  key = mwt.WSGIappKeyboard().getKey();
  if  ((key >= mwt.WSK_0    and key <= mwt.WSK_9   ) or
       (key >= mwt.WSK_KP_0 and key <= mwt.WSK_KP_9) or
        key == mwt.WSK_plus      or key == mwt.WSK_minus  or
        key == mwt.WSK_BackSpace or key == mwt.WSK_Delete or key == mwt.WSK_Insert or
        key == mwt.WSK_space     or key == mwt.WSK_Up     or key == mwt.WSK_Down   or
        key == mwt.WSK_Left      or key == mwt.WSK_Right  or key == mwt.WSK_Return ):
    # dispatches..
    return;
  # Reject the other.
  mwt.WSGIappKeyboard().setKey(0);
  return
mwt.WSGFfunctionRegister("hookop",hookop)

This sample of the input field shows how to choose the key event. mwt.WSGIappKeyboard().setKey(0) reject the key event which you do not need.