UCASE$ - mkilgore/QB64pe GitHub Wiki

The UCASE$ function outputs an all-uppercase version of a STRING.

result$ = UCASE$(text$)

• Used to guarantee that all alphabetical characters in a STRING are capitalized.
• Does not affect non-alphabetical characters.

Example: The following code guarantees that all letter key entries are capitalized:

DO...LOOP
    K$ = UCASE$(INKEY$)
DO...LOOP DO...LOOP K$ = "Y" OR K$ = "N"

• LCASE$ (lower case)
• INKEY$
• INPUT$