XMMatrixIsIdentity function (directxmath.h)

Article
02/22/2024

Tests whether a matrix is the identity matrix.

Syntax

bool XM_CALLCONV XMMatrixIsIdentity(
  [in] FXMMATRIX M
) noexcept;

Parameters

[in] M

Matrix to test.

Return value

Returns true if M is the identity matrix, and false otherwise.

Remarks

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

Requirement	Value
Target Platform	Windows
Header	directxmath.h

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