Button#

Depending on if it is an EXP Controller or a V5 Controller connected, the button attribute has access to different objects:

EXP Controller	V5 Controller
`ButtonA` - The A button. `ButtonB` - The B button. `ButtonDown` - The Down button. `ButtonUp` - The Up button. `ButtonL1` - The L1 button. `ButtonL2` - The L2 button. `ButtonL3` - The L3 button. `ButtonR1` - The R1 button. `ButtonR2` - The R2 button. `ButtonR3` - The R3 button.	`ButtonA` - The A button. `ButtonB` - The B button. `ButtonX` - The X button. `ButtonY` - The Y button. `ButtonDown` - The Down button. `ButtonUp` - The Up button. `ButtonLeft` - The Left button. `ButtonRight` - The Right button. `ButtonL1` - The L1 button. `ButtonL2` - The L2 button. `ButtonR1` - The R1 button. `ButtonR2` - The R2 button.

EXP Controller

V5 Controller

ButtonA - The A button.
ButtonB - The B button.
ButtonDown - The Down button.
ButtonUp - The Up button.
ButtonL1 - The L1 button.
ButtonL2 - The L2 button.
ButtonL3 - The L3 button.
ButtonR1 - The R1 button.
ButtonR2 - The R2 button.
ButtonR3 - The R3 button.

ButtonA - The A button.
ButtonB - The B button.
ButtonX - The X button.
ButtonY - The Y button.
ButtonDown - The Down button.
ButtonUp - The Up button.
ButtonLeft - The Left button.
ButtonRight - The Right button.
ButtonL1 - The L1 button.
ButtonL2 - The L2 button.
ButtonR1 - The R1 button.
ButtonR2 - The R2 button.

pressed()#

The pressed(callback) method registers a function to be called when a button is pressed.

Parameter	Description
callback	A function that will be called when the button is pressed.

Returns: None.

// Define the buttonPressed function with a void return
// type, showing it doesn't return a value.
void buttonPressed() {
  // The Brain will print that a controller button was
  // pressed on the Brain's screen.
  Brain.Screen.print("controller button pressed");
}

int main() {
  // Initializing Robot Configuration. DO NOT REMOVE!
  vexcodeInit();

  // Run buttonPressed when the 'A' controller button is pressed.
  Controller.ButtonA.pressed(buttonPressed);
}

released()#

The released(callback) method registers a function to be called when a button is released.

Parameter	Description
callback	A function that will be called when the button is released.

Returns: None.

// Define the buttonReleased function with a void return
// type, showing it doesn't return a value.
void buttonReleased() {
  // The Brain will print that a controller button was
  // released on the Brain's screen.
  Brain.Screen.print("controller button released");
}

int main() {
  // Initializing Robot Configuration. DO NOT REMOVE!
  vexcodeInit();

  // Run buttonReleased when the 'A' controller button is released.
  Controller.ButtonA.released(buttonReleased);
}

pressing()#

The pressing() method returns whether a button is currently being pressed.

Returns: true if the button is currently being pressed. false if it is not currently being pressed.