#define D3D10_DDI_MAJOR_VERSION 10
---------------------------------------------------------------------------------------------------------------------------------- Versioning Related to D3D10DDIARG_OPENADAPTER::Interface D3D10DDIARG_OPENADAPTER::Version D3D10DDIARG_CREATEDEVICE::Interface D3D10DDIARG_CREATEDEVICE::Version D3D10DDIARG_CALCPRIVATEDEVICESIZE::Interface D3D10DDIARG_CALCPRIVATEDEVICESIZE::Version See specifications. Version behavior differs depending on whether OpenAdapter10 or OpenAdapter10_2 is called.