You need to use Keystate(scancode)
rem Input Functionality
rem Prepare Force Feedback (if available)
ForcePresent=0
empty checklist
PERFORM CHECKLIST FOR CONTROL DEVICES
for c=1 to checklist quantity()
if checklist value a(c)=1
SET CONTROL DEVICE checklist string$(c)
ForcePresent=1
endif
next c
rem Test loop
do
rem Produce random values
String$="hello world "+str$(rnd(99))
XValue=rnd(640)
YValue=rnd(480)
MagnitudeValue=rnd(100)
AngleValue=rnd(360)
DelayValue=rnd(1000)
FireButtonValueID=rnd(31)
HatID=rnd(3)
rem Try each command at random
if rnd(500)=1 then CLEAR ENTRY BUFFER
if rnd(500)=1 then WRITE TO CLIPBOARD String$
if rnd(5)=1 then WRITE TO REGISTRY "App","Field",42
if rnd(5)=1 then HIDE MOUSE
if rnd(5)=1 then SHOW MOUSE
if rnd(5000)=1 then POSITION MOUSE XValue, YValue
if ForcePresent=1
if rnd(5)=1 then FORCE UP MagnitudeValue
if rnd(5)=1 then FORCE DOWN MagnitudeValue
if rnd(5)=1 then FORCE LEFT MagnitudeValue
if rnd(5)=1 then FORCE RIGHT MagnitudeValue
if rnd(5)=1 then FORCE ANGLE MagnitudeValue, AngleValue, DelayValue
if rnd(5)=1 then FORCE NO EFFECT
if rnd(5)=1 then FORCE WATER EFFECT MagnitudeValue, DelayValue
if rnd(5)=1 then FORCE SHOOT MagnitudeValue, DelayValue
if rnd(5)=1 then FORCE CHAINSAW MagnitudeValue, DelayValue
if rnd(5)=1 then FORCE IMPACT MagnitudeValue, DelayValue
if rnd(5)=1 then FORCE AUTO CENTER ON
if rnd(5)=1 then FORCE AUTO CENTER OFF
endif
rem Display data
cls
print "INPUT EXPRESSION DATA"
print
print "scancode:";SCANCODE();
print " keystate1:";KEYSTATE(1);
print " entry$:";ENTRY$()
print "up:";UPKEY();
print " down:";DOWNKEY();
print " left:";LEFTKEY();
print " right:";RIGHTKEY()
print "control:";CONTROLKEY();
print " shift:";SHIFTKEY();
print " return:";RETURNKEY();
print " escape:";ESCAPEKEY();
print " space:";SPACEKEY()
print "clipboard:";GET CLIPBOARD$()
print "registry:";GET REGISTRY("App","Field")
print "mouseclick:";MOUSECLICK()
print "mousex:";MOUSEX();
print " mousey:";MOUSEY();
print " mousez:";MOUSEZ()
print "mouse movex:";MOUSEMOVEX();
print " movey:";MOUSEMOVEY();
print " movez:";MOUSEMOVEZ()
print "joystick up:";JOYSTICK UP();
print " down:";JOYSTICK DOWN();
print " left:";JOYSTICK LEFT();
print " right:";JOYSTICK RIGHT();
print " x:";JOYSTICK X();
print " y:";JOYSTICK Y();
print " z:";JOYSTICK Z()
print "joystick fire a:";JOYSTICK FIRE A();
print " b:";JOYSTICK FIRE B();
print " c:";JOYSTICK FIRE C();
print " d:";JOYSTICK FIRE D();
print " firex:";JOYSTICK FIRE X(FireButtonValueID)
print "joystick slider a:";JOYSTICK SLIDER A();
print " b:";JOYSTICK SLIDER B();
print " c:";JOYSTICK SLIDER C();
print " d:";JOYSTICK SLIDER D()
print "joystick twist x:";JOYSTICK TWIST X();
print " y:";JOYSTICK TWIST Y();
print " z:";JOYSTICK TWIST Z()
print "joystick hat angle:";JOYSTICK HAT ANGLE(HatID)
print "ForcePresent:";ForcePresent
print "control device name:";CONTROL DEVICE NAME$()
print "control device x:";CONTROL DEVICE X();
print " y:";CONTROL DEVICE Y();
print " z:";CONTROL DEVICE Z()
loop
Heres a great example from DBP. Compile it and press any key it will tell you the scancode.
So it would be like if keystate(scancode)=1 then do this...
Load Programmer "Crazy Programmer",1