Labels:bulletin board | poster | reckoner | sky OCR: The procedure checkis optional. : It is called each time you changesome values in the parameters window. It can check the parameter that was changed and act accordingly it can refuse parameter if it lies outside certain range also can change some other parameters and cause the parameters window redrawn. check can use the following predefined variables and constants PNumber the number of the parameter that was changed. a[i] the parameter values as they appear in the parameter window. You can check and/or change a[i] the array mode[i] can take the 'values' active, inactive constant These values can be changed. They determine the modes of the parameters. check the return value of the check-function. check: :=ok then the new parameter value is accepted. Whencheck bad the new parameter will be ...
