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XMVectorGetByIndex method

Retrieve the value of one of the four components of an XMVECTOR Data Type containing floating-point data by index.

Syntax

C++


float XMVectorGetByIndex(
  XMVECTOR V,
  size_t i
);

Parameters

V: A XMVECTOR Data Type containing integer data.
i: The index of the component to be retrieved.

Return value

The floating-point value of the selected component.

Remarks

The value of i must be positive and less than or equal to three ( 0 <= i <= 3 ).

The indexes have the following correspondence with XMVECTOR Data Type vector components:

Index	Component
`0`	`x`
`1`	`y`
`2`	`z`
`3`	`w`

Platform Requirements

Microsoft Visual Studio 2010 or Microsoft Visual Studio 2012 with the Windows SDK for Windows 8. Supported for Win32 desktop apps, Windows Store apps, and Windows Phone 8 apps.

Requirements

Namespace	Use DirectX.
Header	DirectXMath.h