d3drm: Implement D3DRMColorGetRed.
diff --git a/include/d3drmdef.h b/include/d3drmdef.h
index 1bd65dd..3bdec69 100644
--- a/include/d3drmdef.h
+++ b/include/d3drmdef.h
@@ -54,6 +54,8 @@
 LPD3DVECTOR WINAPI D3DRMVectorScale(LPD3DVECTOR, LPD3DVECTOR, D3DVALUE);
 LPD3DVECTOR WINAPI D3DRMVectorSubtract(LPD3DVECTOR, LPD3DVECTOR, LPD3DVECTOR);
 
+D3DVALUE WINAPI D3DRMColorGetRed(D3DCOLOR);
+
 #if defined(__cplusplus)
 }
 #endif