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Reference > Language > Functions > Usb > Mouse > Mouseispressed

Mouse.isPressed()

Description

Checks the current status of all mouse buttons, and reports if any are pressed or not.

Syntax

Mouse.isPressed();
Mouse.isPressed(button);

Parameters

When there is no value passed, it checks the status of the left mouse button.

button: which mouse button to check. Allowed data types: char.

  • MOUSE_LEFT (default)

  • MOUSE_RIGHT

  • MOUSE_MIDDLE

Returns

Reports whether a button is pressed or not. Data type: bool.

Example Code

#include <Mouse.h>

void setup() {
  //The switch that will initiate the Mouse press
  pinMode(2, INPUT);
  //The switch that will terminate the Mouse press
  pinMode(3, INPUT);
  //Start serial communication with the computer
  Serial.begin(9600);
  //initiate the Mouse library
  Mouse.begin();
}

void loop() {
  //a variable for checking the button's state
  int mouseState = 0;
  //if the switch attached to pin 2 is closed, press and hold the left mouse button and save the state ina  variable
  if (digitalRead(2) == HIGH) {
    Mouse.press();
    mouseState = Mouse.isPressed();
  }
  //if the switch attached to pin 3 is closed, release the left mouse button and save the state in a variable
  if (digitalRead(3) == HIGH) {
    Mouse.release();
    mouseState = Mouse.isPressed();
  }
  //print out the current mouse button state
  Serial.println(mouseState);
  delay(10);
}

See also