isGraph()

Description

Check if a character is printable with some content (space is printable but has no content) or not. Returns true if the character is printable.

Syntax

isGraph(thisChar)

Parameter Values

  • thisChar: variable. Allowed data types: char.

Return Values

  • true: If thisChar is printable.
  • false: Otherwise

Example Code

if (isGraph(myChar)) { // tests if myChar is a printable character but not a blank space. Serial.println("The character is printable"); } else { Serial.println("The character is not printable"); }

The result in Serial Monitor:

Newbiely | Arduino IDE 2.3.8
──
File
Edit
Sketch
Tools
Help
Arduino Uno
Newbiely.ino
···
8 Serial.println("Hello World!");
Output
Serial Monitor
Message (Enter to send message to 'Arduino Uno' on 'COM15')
New Line
9600 baud
Ln 11, Col 1
Arduino Uno on COM15
2

See Also

ARDUINO BUY RECOMMENDATION

Arduino UNO R3
Arduino Starter Kit
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