Defines constants that describe depth-buffer formats.
typedef enum D3DZBUFFERTYPE
{
D3DZB_FALSE = 0,
D3DZB_TRUE = 1,
D3DZB_USEW = 2,
D3DZB_FORCE_DWORD = 0x7fffffff,
} D3DZBUFFERTYPE, *LPD3DZBUFFERTYPE;
Members of this enumerated type are used with the D3DRS_ZENABLE render state.