getbut(3G) getbut(3G) NAME getbut - returns the state of a button FORTRAN 77 SPECIFICATION logical function getbut(num) integer*4 num PARAMETERS num is the device number of the button you want to test. FUNCTION RETURN VALUE There are two possible return values for this function: .FALSE. indicates that button num is up. .TRUE. indicates that button num is down. The return value is undefined if there was an error, e.g. num is not a button device. DESCRIPTION getbut returns the state of button num. SEE ALSO getdev NOTE This routine is available only in immediate mode. Page 1[top]
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