HRESULT GetGroup(D3DRMGROUPINDEX id, unsigned *vCount,
unsigned *fCount, unsigned *vPerFace, DWORD *fDataSize,
unsigned *fData);
Retrieves the data associated with a specified group.
·Returns D3DRM_OK if successful, or an error otherwise. For a list of possible return codes, see Direct3D Retained-Mode Return Values.
id
Identifier of the group. This identifier must have been produced by using the IDirect3DRMMesh::AddGroup method.
vCount and fCount
Addresses of variables that will contain the number of vertices and the number of faces for the group when the method returns. These parameters can be NULL.
vPerFace
Address of a variable that will contain the number of vertices per face for the group when the method returns. This parameter can be NULL.
fDataSize
Address of a variable that specifies the number of unsigned elements in the buffer pointed to by the fData parameter. This parameter cannot be NULL.
fData
Address of a buffer that will contain the face data for the group when the method returns. The format of this data is the same as was specified in the call to the IDirect3DRMMesh::AddGroup method. If this parameter is NULL, the method returns the required size of the buffer in the fDataSize parameter.