class DX
{
public.
...
...
...

private:
struct CUSTOMVERTEX
{
float x,y,z;
D3DCOLOR diffuse;
};

CUSTOMVERTEX m_sVertex[2];

}  

  

                    
void cDGfx::D3DTriangle(void) 
{
	//Fill out the structure with vertex data, x,y,z and color

	m_sVertex[0].x = 150.0f;
	m_sVertex[0].y = 50.0f;
	m_sVertex[0].z = 1.0f;
	m_sVertex[0].diffuse = D3DCOLOR_RGBA(0,0,255,0);

	m_sVertex[1].x = 150.0f;
	m_sVertex[1].y = 50.0f;
	m_sVertex[1].z = 1.0f;
	m_sVertex[1].diffuse = D3DCOLOR_RGBA(0,0,255,0);

	m_sVertex[2].x = 150.0f;
	m_sVertex[2].y = 50.0f;
	m_sVertex[2].z = 1.0f;
	m_sVertex[2].diffuse = D3DCOLOR_RGBA(0,0,255,0);

	m_iD3DDevice8->CreateVertexBuffer(3*sizeof(CUSTOMVERTEX), 0,
		D3DFVF_DIFFUSE|D3DFVF_XYZ, D3DPOOL_DEFAULT, &m_iD3DVertBuf8);

	BYTE *ptr;
	m_iD3DVertBuf8->Lock(0, sizeof(m_sVertex), (BYTE**)&ptr, 0);
	memcpy(&ptr,m_sVertex, sizeof(m_sVertex));
	m_iD3DVertBuf8->Unlock();

}