+/** XCBNone is the universal null resource or null atom parameter value for many core X requests */
+#define XCBNone 0L
+
+/** XCBCopyFromParent can be used for many CreateWindow parameters */
+#define XCBCopyFromParent 0L
+
+/** XCBCurrentTime can be used in most requests that take an XCBTIMESTAMP */
+#define XCBCurrentTime 0L
+
+/** XCBNoSymbol fills in unused entries in XCBKEYSYM tables */
+#define XCBNoSymbol 0L
+
+