C / C++ / MFC

void Render()<br />
{<br />
    if( g_pd3dDevice == NULL )<br />
        return;<br />
<br />
    // Clear the backbuffer to a blue colour<br />
    g_pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,255), 1.0f, 0 );<br />
    <br />
    // Begin the scene<br />
    g_pd3dDevice->BeginScene();<br />
<br />
    // Render 2D items in the scene<br />
    Render2D();<br />
    <br />
    // End the scene<br />
    g_pd3dDevice->EndScene();<br />
    <br />
    // Present the backbuffer contents to the display<br />
    g_pd3dDevice->Present( NULL, NULL, NULL, NULL );<br />
}

<br />
void Render2D()<br />
{<br />
	g_pd3dDevice->SetVertexShader(D3DFVF_PANELVERTEX);<br />
	g_pd3dDevice->SetStreamSource(0, g_pVertices, sizeof(PANELVERTEX));<br />
	g_pd3dDevice->DrawPrimitive(D3DPT_TRIANGLEFAN, 0, 2);<br />
}