Defines the supported culling modes.
typedef enum D3DCULL
{
D3DCULL_NONE = 1,
D3DCULL_CW = 2,
D3DCULL_CCW = 3,
D3DCULL_FORCE_DWORD = 0x7fffffff,
} D3DCULL, *LPD3DCULL;
The values in this enumerated type are used by the D3DRS_CULLMODE render state. The culling modes define how back faces are culled when rendering a geometry.