D3DXQuaternionIsIdentity Function

Determines if a quaternion is an identity quaternion.

Syntax

BOOL D3DXQuaternionIsIdentity(      

    CONST D3DXQUATERNION *pQ
);

Parameters

pQ
[in] Pointer to the D3DXQUATERNION structure that will be tested for identity.

Return Value

If the quaternion is an identity quaternion, this function returns TRUE. Otherwise, this function returns FALSE.

Function Information

Header d3dx9math.h
Import library d3dx9.lib
Minimum operating systems Windows 98