why doesn't GETKEY work with WAIT (solved)

[StephenG1CMZ]

I expected this simple program to buffer key input, allowing tapping ESC to exit: it doesn't when WAIT is included, so I have to exit by holding ON to interrupt the program instead.

Is there a better way?,[Android]

Code:



 LOCAL LIGHTH:="HOLD ON/OFF TO EXIT:GETKEY BROKEN";
 EXPORT LIGHTSTEADY()
 BEGIN
  RECT_P(0,0,320,240,0,#FFh);
  TEXTOUT_P(LIGHTH,0,180);
  REPEAT
  //WAIT(−1);
  UNTIL GETKEY==4 ;//UNRELIABLE

 END;

 EXPORT GETKEYPROB()
 BEGIN
  LIGHTSTEADY();
 END;

[Didier Lachieze]

When you press a key WAIT(-1) returns the key code, you don't need GETKEY after that.
Try to replace:

Code:

  REPEAT
  //WAIT(−1);
  UNTIL GETKEY==4 ;//UNRELIABLE

by:

Code:

  REPEAT UNTIL WAIT(−1)==4 ;

[Han]

WAIT(-1) itself also captures key presses. So if you press [Esc] during the WAIT(-1) timeout period, the keypress is sent to the WAIT command. GETKEY would then have nothing in the buffer to parse. Save the output from WAIT(-1) and use it to test.

[StephenG1CMZ]

Thanks. I never thought of looking for the key hidden in WAIT.