D3D Transparent?

struct Vertex 
	{
		float x,y,z,ht;
		DWORD yourcolor;
	}
	
	V[4] = 
	{
		{(float)x,(float)(y+h), 0.0f, 0.0f, yourcolor},
		{(float)x,(float)y, 0.0f, 0.0f, yourcolor},
		{(float)(x+w),(float)(y+h), 0.0f, 0.0f, yourcolor},
		{(float)(x+w),(float)y, 0.0f, 0.0f, yourcolor}
	};

	
	pDevice->SetTexture(0, NULL);
	pDevice->SetRenderState(D3DRS_ALPHABLENDENABLE,true);
	pDevice->DrawPrimitiveUP(D3DPT_TRIANGLESTRIP,2,V,sizeof(Vertex));