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- Operating mode of the LEDs
LEDSwitchOn (Function) In french: LEDAllume Switches the LED (Light-Emitting Diode) of the device on. This LED can be switched off by LEDSwitchOff. Caution: - The device must be equipped with a LED.
- This function has no effect in the simulator or in the emulator.
// Switch on the diode in red for 1 second
LEDSwitchOn(LightRed, 1000)
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// Turn off LED
LEDSwitchOff()
Syntax
LEDSwitchOn(<Color> [, <Duration> [, <Blinking>]])
<Color>: Integer Color of the LED. This color can correspond to: Caution: Some devices do not allow LED color changes or only offer certain colors.. A default color (or a similar color) will be used if the specified color is not supported by the device. <Duration>: Optional integer or optional Duration Duration (in milliseconds) during which the diode must be switched on. - If this parameter is set to 0, the diode will be switched on until the call to LEDSwitchOff or until the application is closed.
- If this parameter is not specified, the diode will be switched on during 3 seconds.
This parameter can correspond to: - an integer representing the number of milliseconds,
- a Duration variable,
- the duration in a readable format (e.g., 1 s or 10 ms).
<Blinking>: Optional boolean - True if the LED must blink,
- False (default value) if the LED must be fixed. The blinking frequency can change from a device to another one.
Remarks Operating mode of the LEDs The operating mode of the LEDs differs according to the type of device used: - Some devices do not allow you to modify the LED color or they do not propose all the colors. A default color (or a similar color) will be used if the specified color is not supported by the device.
- On some devices, the LED is switched on only when the screen is switched off.
- On some devices, when they are linked to the PC by USB or plugged in, the LED is used as charge warning light. In this case, LEDSwitchOn has no effect.
- The lighting of the LED will be interrupted if the user expands the window of notifications on the device.
Component: wd300android.jar |
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