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lamparraybitmaprequestedeventargs_updatebitmap_191710798.md

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-api-id M:Windows.Devices.Lights.Effects.LampArrayBitmapRequestedEventArgs.UpdateBitmap(Windows.Graphics.Imaging.SoftwareBitmap)
-api-type winrt method
ms.custom RS5

Windows.Devices.Lights.Effects.LampArrayBitmapRequestedEventArgs.UpdateBitmap

-description

Sets previously specified lamp/s indexes according to the caller defined image.

-parameters

-param bitmap

The image form which to update the lamp/s. If null, all lamps are to set off/Black

-remarks

Images supplied that are not of the SuggestedBitmapSize will incur a small performance penalty when resizing internally.

-examples

:::row::: :::column:::

    [LampArray sample](https://github.com/microsoft/Windows-universal-samples/tree/main/Samples/LampArray)
    
    Demonstrates how to control RGB lighting of peripheral devices using the [**Windows.Devices.Lights**](/uwp/api/windows.devices.lights) and [**Windows.Devices.Lights.Effects**](/uwp/api/windows.devices.lights.effects) APIs.

:::column-end:::
:::column:::

    [AutoRGB Sample](https://github.com/microsoft/Dynamic-Lighting-AutoRGB)
    
    Demonstrates how to extract a single, representative color from a desktop screen and use it to illuminate LED lamps on a connected RGB device.
        
:::column-end:::

:::row-end:::

-see-also

Lighting and Illumination (www.usb.org), Dynamic lighting