[futurebasic] Key Down at Startup

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From: Jeff Hoffman <jeff@...>
Date: Tue, 29 Sep 1998 21:05:59 -0500
I'm trying to do something that should be trivial but must have (yet 
another) mental block (and, truth be told, it's been too long since I 
wrote any FB code). I'm building a faceless app that normally gets 
launched at system startup, does it's thing and quits. However, I want 
the user to be able to press the command key while manually launching to 
display/set the app's preferences. A previous version of the app allowed 
the user to press any alpha or number key as the app was being launched 
and I could catch it with INKEY, but as Macs get faster, it is getting 
nearly impossible to launch the app and get the key pressed in time for 
the app to catch it before it does it's voodoo facelessly (and you can't 
press an alpha or numeric key in the Finder anymore without the selected 
file being changed by the Finder). INKEY as you are aware, doesn't trap 
Control, Option, Command, etc. How do I set up event trapping to catch 
the keydown event on startup if there is one and display my preferences 
dialog (FN initialize), or drop on through and execute a function (FN 
doDeletes) then quit if there's not a keydown event in the queue on 
startup. Here's the original code that handled it using INKEY:

LONG IF LEN(INKEY$)                    'is a key down at launch?
  FN initialize                        'yes, open the prefs dialog
  ON DIALOG FN doDialog                'handle prefs dialog events
  DO
    HANDLEEVENTS
  UNTIL gQuit%                         'okay button sets gQuit%
XELSE                                  'no, just do the deletes
  FN doDeletes
END IF        
IF gBeepPref% = _markedBtn THEN BEEP   'beep if beep pref is marked
END

TIA for any helpful suggestions.

Jeff

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