1 CAPI Reference Entries

prompt-for-integer

Function

Summary
: Theprompt-for-integer function pops up a text input pane and prompts the user for an integer.
Syntax

prompt-for-integer message &key min max initial-value ok-check pane-args popup-args

Description
: This function prompts the user for an integer which is returned, and the initial-value will appear in the input pane. When min or max are specified the allowable result is constrained accordingly, and more complicated restrictions can be applied using the function ok-check which gets passed the currently entered number, and should returnt if it is valid.
: Finally, as with all of the prompting functions, the prompter is created by passing an appropriate pane (in this case a text input pane) topopup-confirmer. Arguments can be passed to themake-instance of the pane and the call topopup-confirmer using pane-args and popup-args respectively.
Examples

(capi:prompt-for-integer "Enter an integer:")
(capi:prompt-for-integer "Enter an integer:" :max 10)

(capi:prompt-for-integer "Enter an integer:"
                         :min 100 :max 200)

(capi:prompt-for-integer "Enter an integer:"
                         :ok-check 'evenp)

See also
: prompt-for-string
popup-confirmer
text-input-pane