INPUTNULL

INPUTNULL

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The INPUTNULL statement sets a special character to cause INPUT @ and INPUTFIELD to return a null string.

 

 

Format

 

INPUTNULL expr

 

where

 

exprevaluates to the character to be set. If the expr string is more than one character, the first character is used.

 

 

 

The INPUTNULL statement is used with INPUT @ and INPUTFIELD. It sets a character that, if supplied as a single character response to these statements, causes them to return a null string result. Any data echoed by the input action remains as typed.

 

Specifying expr as a null string cancels recognition of the special character. This also occurs automatically on return to the command prompt.

 

 

 

See also:

INPUT@, INPUTFIELD, INPUTTRAP