ON KEY(n)

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Revision as of 19:44, 8 June 2011 by imported>Clippy
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The ON KEY(n) statement defines a line number or label to go to when a specified key is pressed.


Syntax

ON KEY (n) GOSUB {linelabel|linenumber}


Description:

  • The keys apply to the list of keys shown below, where n is the number that represents that key.
1 - 10 for F1 - F10 function keys respectively
11, 12, 13 and 14 for UP, LEFT, RIGHT and DOWN numberpad arrows respectively.
15-25(29 in QB64) for user-defined keys. See: KEY n, Keyboard scancodes
30 - 31 for F11 - F12 function keys


Example:

KEY(1) ON ON KEY(1) GOSUB trap PRINT "Press F1 to quit!" DO:LOOP 'never ending loop trap: PRINT "You pressed F1 like I told you to :)" END RETURN


See also:



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