diff --git a/wintable/NEWcoord.h b/wintable/NEWcoord.h
new file mode 100644
index 0000000..6a0fb68
--- /dev/null
+++ b/wintable/NEWcoord.h
@@ -0,0 +1,32 @@
+// 4 december 2014
+
+typedef struct rowcol rowcol;
+
+struct rowcol {
+	intptr_t row;
+	intptr_t column;
+};
+
+static rowcol clientCoordToRowColumn(struct table *t, POINT pt)
+{
+	// TODO
+}
+
+// same as client coordinates, but stored in a lParam (like the various mouse messages provide)
+// TODO should we use GetMessagePos() instead?
+static rowcol lParamToRowColumn(struct table *t, LPARAM lParam)
+{
+	POINT pt;
+
+	pt.x = GET_X_LPARAM(lParam);
+	pt.y = GET_Y_LPARAM(lParam);
+	return clientCoordToRowColumn(t, pt);
+}
+
+// returns TRUE if the row is visible and thus has client coordinates; FALSE otherwise
+static BOOL rowColumnToClientCoord(struct table *t, rowcol rc, struct POINT *pt)
+{
+	// TODO
+}
+
+// TODO idealCoordToRowColumn/rowColumnToIdealCoord?