XGameStreamingGetGamepadPhysicality

บทความ
06/22/2023

Gets the input physicality mapping from a specific gamepad reading.

Syntax

HRESULT XGameStreamingGetGamepadPhysicality(
         IGameInputReading* gamepadReading,
         XGameStreamingGamepadPhysicality* gamepadPhysicality
)

Parameters

gamepadReading _In_
Type: IGameInputReading*

The gamepad reading that is being queried.

gamepadPhysicality _Out_
Type: XGameStreamingGamepadPhysicality*

The physicality of the input reading.

Return value

Type: HRESULT

Returns S_OK if successful; otherwise, returns an error code.

Potential Errors

Error Code	Error Value	Reason for Error
E_GAMESTREAMING_NOT_INITIALIZED	0x89245400	The XGameStreaming runtime has not been initialized. Call XGameStreamingInitialize before calling other APIs.
E_GAMESTREAMING_NOT_STREAMING_CONTROLLER	0x89245404	The current reading didn't come from a streaming controller.

Remarks

Games might need to differentiate a controller input based on whether the input was from a physically attached controller, or from a touch layout that has been translated into a virtual controller input.

Example scenario

The game has a jump action associated with the A button. It offers a touch layout with the jump icon configured with the A button press on the virtual controller. The game also offers players the ability to remap the physical controller in a way that A is no longer associated with jump.

The game can present visual hints to interact with elements in the game (for example, Press A to jump). When the player uses the touch layouts, the visual hint should show the iconography of the touch layout's button.

Example

In the following code example, the game has the jump action linked to the A button on the controller by default. While this setting is customizable by the player, the touch layout on the screen is fixed, and therefore an A button press from the touch layout should be treated as jump, always, while the A from a physical controller should be treated as whatever the player set for the controller mapping customization.

void Game::Update(DX::StepTimer const& timer)
{
    g_gameInput->GetCurrentReading(GameInputKind::GameInputKindController, g_gamepad, &reading);
    
    GameInputGamepadState state;
    reading->GetGamepadState(&state);

    XGameStreamingGamepadPhysicality physicality = XGameStreamingGamepadPhysicality::None;
    
    HRESULT hr = XGameStreamingGetGamepadPhysicality(reading, &physicality);

    if ((state.buttons & GameInputGamepadA) != GameInputGamepadNone)
    {
        if (SUCCEEDED(hr))
        {
            if ((physicality & XGameStreamingGamepadPhysicality::AVirtual) == 
                XGameStreamingGamepadPhysicality::AVirtual)
            {
                // 'A' Input came from touch layout
                // Perform 'jump' action, if applicable
            }
            else if ((physicality & XGameStreamingGamepadPhysicality::APhysical) == 
                 XGameStreamingGamepadPhysicality::APhysical)
            {
                // 'A' Input came from the physical controller.
                // Lookup 'A' from the user's customized controller mapping.
                // Perform whatever action A is mapped to, if applicable.
            }
        }
        else
        {
            // Physicality not present on this gamepad.
            // Perform input 'A' action as if there were no stream.
        }
    }

    // UI icon updates.
    // If the player is using the touch layouts, then show touch iconography, 
    // otherwise switch to the physical controller iconography.
    if (SUCCEEDED(hr))
    {
        if ((physicality & XGameStreamingGamepadPhysicality::AllVirtual) != 
            XGameStreamingGamepadPhysicality::None)
        {
            // At least one input is coming from virtual touch layout.
            // Update UI icons to match the touch layouts.
        } 
        else 
        {
            if ((physicality & XGameStreamingGamepadPhysicality::AllPhysical) != 
                XGameStreamingGamepadPhysicality::None)
            {
                // At least one input is coming from a physical controller.
                // Update UI icons to match a physical controller inputs (for example, LT/LB/RT/RB icon).
            }
        }
    }
    else
    {
        // Use the default non-streaming behavior for UI icons 
    }
}

Requirements

Header: xgamestreaming.h

Library: xgameruntime.lib

Supported platforms: Windows, Xbox One family consoles and Xbox Series consoles

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