2.3.1 Handling Device Input When the System Is Closed
Input does not occur to the following input devices when the Nintendo 3DS system is closed (or in the case of an FTR system, when the sleep switch is to the right). This holds true whether or not the application transitions to Sleep Mode.
- A, B, X, Y Buttons
- +Control Pad
- Circle Pad
- Touch Screen
- START
- Cameras
- Microphone
- HOME Button
SNAKE and CLOSER systems do not receive short presses of the POWER Button. Similarly, FTR systems receive neither short nor long presses of the POWER Button.
As long as the application does not transition to Sleep Mode, input can still be received from the following input devices when the system is closed.
- ZL/ZR Buttons (SNAKE and CLOSER only)
- C Stick (SNAKE and CLOSER only)
- L, R Buttons
- Accelerometer
- Gyro sensor
If your application does not transition to Sleep Mode when the system is closed (or, on an FTR system, when the sleep switch is to the right), then make sure the application continues to operate properly, even if there is input from any of the devices above to which input can still occur.
No required guideline items.
2.3.2 Intervals During Which Device Input Is Ignored
Users may think that the system has frozen when there is no response after input from one of the input devices (buttons, Touch Screen, etc.) for a long time. You can prevent this issue by properly complying with 2.5.2 Launching the HOME Menu and 2.5.3 Displaying the HOME Menu Disabled Icon. For this reason, Nintendo sets no particular requirements (such as a requirement for on-screen display) on the intervals during which HOME Button input is the only device input accepted.
However, game specifications that only accept HOME Button input for 10 seconds or longer are stressful for the user. In these situations, we recommend that you animate a part of the screen (this could involve switching images every few seconds like a slideshow) or take some other similar measure.
No required guideline items.
2.3.3 Taking Into Account Characteristics of the C Stick
The C Stick built into SNAKE systems is an input device that performs the same role as the Right Circle Pad on the Circle Pad Pro, when the Circle Pad Pro is attached to a CTR system.
However, in order to register input the C Stick requires the user to apply more force than is necessary for the Right Circle Pad. Considering the force this places on the user's thumb, Nintendo recommends that applications avoid designs requiring the user to rotate the C Stick continuously with heavy pressure.
No required guideline items.